diff options
Diffstat (limited to 'fs')
78 files changed, 1837 insertions, 1160 deletions
@@ -70,6 +70,12 @@ config FS_POSIX_ACL config EXPORTFS tristate +config EXPORTFS_BLOCK_OPS + bool "Enable filesystem export operations for block IO" + help + This option enables the export operations for a filesystem to support + external block IO. + config FILE_LOCKING bool "Enable POSIX file locking API" if EXPERT default y diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt index 72c0335..c7efddf 100644 --- a/fs/Kconfig.binfmt +++ b/fs/Kconfig.binfmt @@ -89,7 +89,8 @@ config BINFMT_SCRIPT config BINFMT_FLAT bool "Kernel support for flat binaries" - depends on !MMU && (!FRV || BROKEN) + depends on !MMU || M68K + depends on !FRV || BROKEN help Support uClinux FLAT format binaries. diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index 2035893..464a972 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c @@ -67,8 +67,6 @@ static int create_elf_fdpic_tables(struct linux_binprm *, struct mm_struct *, struct elf_fdpic_params *); #ifndef CONFIG_MMU -static int elf_fdpic_transfer_args_to_stack(struct linux_binprm *, - unsigned long *); static int elf_fdpic_map_file_constdisp_on_uclinux(struct elf_fdpic_params *, struct file *, struct mm_struct *); @@ -515,8 +513,9 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, sp = mm->start_stack; /* stack the program arguments and environment */ - if (elf_fdpic_transfer_args_to_stack(bprm, &sp) < 0) + if (transfer_args_to_stack(bprm, &sp) < 0) return -EFAULT; + sp &= ~15; #endif /* @@ -711,39 +710,6 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, /*****************************************************************************/ /* - * transfer the program arguments and environment from the holding pages onto - * the stack - */ -#ifndef CONFIG_MMU -static int elf_fdpic_transfer_args_to_stack(struct linux_binprm *bprm, - unsigned long *_sp) -{ - unsigned long index, stop, sp; - char *src; - int ret = 0; - - stop = bprm->p >> PAGE_SHIFT; - sp = *_sp; - - for (index = MAX_ARG_PAGES - 1; index >= stop; index--) { - src = kmap(bprm->page[index]); - sp -= PAGE_SIZE; - if (copy_to_user((void *) sp, src, PAGE_SIZE) != 0) - ret = -EFAULT; - kunmap(bprm->page[index]); - if (ret < 0) - goto out; - } - - *_sp = (*_sp - (MAX_ARG_PAGES * PAGE_SIZE - bprm->p)) & ~15; - -out: - return ret; -} -#endif - -/*****************************************************************************/ -/* * load the appropriate binary image (executable or interpreter) into memory * - we assume no MMU is available * - if no other PIC bits are set in params->hdr->e_flags diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index caf9e39..9b2917a 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -15,7 +15,8 @@ * JAN/99 -- coded full program relocation (gerg@snapgear.com) */ -#include <linux/export.h> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/sched.h> #include <linux/mm.h> @@ -25,8 +26,6 @@ #include <linux/string.h> #include <linux/fs.h> #include <linux/file.h> -#include <linux/stat.h> -#include <linux/fcntl.h> #include <linux/ptrace.h> #include <linux/user.h> #include <linux/slab.h> @@ -34,26 +33,16 @@ #include <linux/personality.h> #include <linux/init.h> #include <linux/flat.h> -#include <linux/syscalls.h> +#include <linux/uaccess.h> +#include <linux/vmalloc.h> #include <asm/byteorder.h> -#include <asm/uaccess.h> #include <asm/unaligned.h> #include <asm/cacheflush.h> #include <asm/page.h> /****************************************************************************/ -#if 0 -#define DEBUG 1 -#endif - -#ifdef DEBUG -#define DBG_FLT(a...) printk(a) -#else -#define DBG_FLT(a...) -#endif - /* * User data (data section and bss) needs to be aligned. * We pick 0x20 here because it is the max value elf2flt has always @@ -80,7 +69,7 @@ struct lib_info { unsigned long text_len; /* Length of text segment */ unsigned long entry; /* Start address for this module */ unsigned long build_date; /* When this one was compiled */ - short loaded; /* Has this library been loaded? */ + bool loaded; /* Has this library been loaded? */ } lib_list[MAX_SHARED_LIBS]; }; @@ -106,59 +95,67 @@ static struct linux_binfmt flat_format = { static int flat_core_dump(struct coredump_params *cprm) { - printk("Process %s:%d received signr %d and should have core dumped\n", - current->comm, current->pid, (int) cprm->siginfo->si_signo); - return(1); + pr_warn("Process %s:%d received signr %d and should have core dumped\n", + current->comm, current->pid, cprm->siginfo->si_signo); + return 1; } /****************************************************************************/ /* * create_flat_tables() parses the env- and arg-strings in new user * memory and creates the pointer tables from them, and puts their - * addresses on the "stack", returning the new stack pointer value. + * addresses on the "stack", recording the new stack pointer value. */ -static unsigned long create_flat_tables( - unsigned long pp, - struct linux_binprm * bprm) +static int create_flat_tables(struct linux_binprm *bprm, unsigned long arg_start) { - unsigned long *argv,*envp; - unsigned long * sp; - char * p = (char*)pp; - int argc = bprm->argc; - int envc = bprm->envc; - char uninitialized_var(dummy); - - sp = (unsigned long *)p; - sp -= (envc + argc + 2) + 1 + (flat_argvp_envp_on_stack() ? 2 : 0); - sp = (unsigned long *) ((unsigned long)sp & -FLAT_STACK_ALIGN); - argv = sp + 1 + (flat_argvp_envp_on_stack() ? 2 : 0); - envp = argv + (argc + 1); + char __user *p; + unsigned long __user *sp; + long i, len; + + p = (char __user *)arg_start; + sp = (unsigned long __user *)current->mm->start_stack; + + sp -= bprm->envc + 1; + sp -= bprm->argc + 1; + sp -= flat_argvp_envp_on_stack() ? 2 : 0; + sp -= 1; /* &argc */ + current->mm->start_stack = (unsigned long)sp & -FLAT_STACK_ALIGN; + sp = (unsigned long __user *)current->mm->start_stack; + + __put_user(bprm->argc, sp++); if (flat_argvp_envp_on_stack()) { - put_user((unsigned long) envp, sp + 2); - put_user((unsigned long) argv, sp + 1); - } - - put_user(argc, sp); - current->mm->arg_start = (unsigned long) p; - while (argc-->0) { - put_user((unsigned long) p, argv++); - do { - get_user(dummy, p); p++; - } while (dummy); - } - put_user((unsigned long) NULL, argv); - current->mm->arg_end = current->mm->env_start = (unsigned long) p; - while (envc-->0) { - put_user((unsigned long)p, envp); envp++; - do { - get_user(dummy, p); p++; - } while (dummy); - } - put_user((unsigned long) NULL, envp); - current->mm->env_end = (unsigned long) p; - return (unsigned long)sp; + unsigned long argv, envp; + argv = (unsigned long)(sp + 2); + envp = (unsigned long)(sp + 2 + bprm->argc + 1); + __put_user(argv, sp++); + __put_user(envp, sp++); + } + + current->mm->arg_start = (unsigned long)p; + for (i = bprm->argc; i > 0; i--) { + __put_user((unsigned long)p, sp++); + len = strnlen_user(p, MAX_ARG_STRLEN); + if (!len || len > MAX_ARG_STRLEN) + return -EINVAL; + p += len; + } + __put_user(0, sp++); + current->mm->arg_end = (unsigned long)p; + + current->mm->env_start = (unsigned long) p; + for (i = bprm->envc; i > 0; i--) { + __put_user((unsigned long)p, sp++); + len = strnlen_user(p, MAX_ARG_STRLEN); + if (!len || len > MAX_ARG_STRLEN) + return -EINVAL; + p += len; + } + __put_user(0, sp++); + current->mm->env_end = (unsigned long)p; + + return 0; } /****************************************************************************/ @@ -190,17 +187,17 @@ static int decompress_exec( loff_t fpos; int ret, retval; - DBG_FLT("decompress_exec(offset=%x,buf=%x,len=%x)\n",(int)offset, (int)dst, (int)len); + pr_debug("decompress_exec(offset=%lx,buf=%p,len=%lx)\n", offset, dst, len); memset(&strm, 0, sizeof(strm)); strm.workspace = kmalloc(zlib_inflate_workspacesize(), GFP_KERNEL); if (strm.workspace == NULL) { - DBG_FLT("binfmt_flat: no memory for decompress workspace\n"); + pr_debug("no memory for decompress workspace\n"); return -ENOMEM; } buf = kmalloc(LBUFSIZE, GFP_KERNEL); if (buf == NULL) { - DBG_FLT("binfmt_flat: no memory for read buffer\n"); + pr_debug("no memory for read buffer\n"); retval = -ENOMEM; goto out_free; } @@ -218,49 +215,49 @@ static int decompress_exec( /* Check minimum size -- gzip header */ if (ret < 10) { - DBG_FLT("binfmt_flat: file too small?\n"); + pr_debug("file too small?\n"); goto out_free_buf; } /* Check gzip magic number */ if ((buf[0] != 037) || ((buf[1] != 0213) && (buf[1] != 0236))) { - DBG_FLT("binfmt_flat: unknown compression magic?\n"); + pr_debug("unknown compression magic?\n"); goto out_free_buf; } /* Check gzip method */ if (buf[2] != 8) { - DBG_FLT("binfmt_flat: unknown compression method?\n"); + pr_debug("unknown compression method?\n"); goto out_free_buf; } /* Check gzip flags */ if ((buf[3] & ENCRYPTED) || (buf[3] & CONTINUATION) || (buf[3] & RESERVED)) { - DBG_FLT("binfmt_flat: unknown flags?\n"); + pr_debug("unknown flags?\n"); goto out_free_buf; } ret = 10; if (buf[3] & EXTRA_FIELD) { ret += 2 + buf[10] + (buf[11] << 8); - if (unlikely(LBUFSIZE <= ret)) { - DBG_FLT("binfmt_flat: buffer overflow (EXTRA)?\n"); + if (unlikely(ret >= LBUFSIZE)) { + pr_debug("buffer overflow (EXTRA)?\n"); goto out_free_buf; } } if (buf[3] & ORIG_NAME) { while (ret < LBUFSIZE && buf[ret++] != 0) ; - if (unlikely(LBUFSIZE == ret)) { - DBG_FLT("binfmt_flat: buffer overflow (ORIG_NAME)?\n"); + if (unlikely(ret == LBUFSIZE)) { + pr_debug("buffer overflow (ORIG_NAME)?\n"); goto out_free_buf; } } if (buf[3] & COMMENT) { while (ret < LBUFSIZE && buf[ret++] != 0) ; - if (unlikely(LBUFSIZE == ret)) { - DBG_FLT("binfmt_flat: buffer overflow (COMMENT)?\n"); + if (unlikely(ret == LBUFSIZE)) { + pr_debug("buffer overflow (COMMENT)?\n"); goto out_free_buf; } } @@ -273,7 +270,7 @@ static int decompress_exec( strm.total_out = 0; if (zlib_inflateInit2(&strm, -MAX_WBITS) != Z_OK) { - DBG_FLT("binfmt_flat: zlib init failed?\n"); + pr_debug("zlib init failed?\n"); goto out_free_buf; } @@ -290,7 +287,7 @@ static int decompress_exec( } if (ret < 0) { - DBG_FLT("binfmt_flat: decompression failed (%d), %s\n", + pr_debug("decompression failed (%d), %s\n", ret, strm.msg); goto out_zlib; } @@ -327,24 +324,23 @@ calc_reloc(unsigned long r, struct lib_info *p, int curid, int internalp) r &= 0x00ffffff; /* Trim ID off here */ } if (id >= MAX_SHARED_LIBS) { - printk("BINFMT_FLAT: reference 0x%x to shared library %d", - (unsigned) r, id); + pr_err("reference 0x%lx to shared library %d", r, id); goto failed; } if (curid != id) { if (internalp) { - printk("BINFMT_FLAT: reloc address 0x%x not in same module " - "(%d != %d)", (unsigned) r, curid, id); + pr_err("reloc address 0x%lx not in same module " + "(%d != %d)", r, curid, id); goto failed; - } else if ( ! p->lib_list[id].loaded && - load_flat_shared_library(id, p) < 0) { - printk("BINFMT_FLAT: failed to load library %d", id); + } else if (!p->lib_list[id].loaded && + load_flat_shared_library(id, p) < 0) { + pr_err("failed to load library %d", id); goto failed; } /* Check versioning information (i.e. time stamps) */ if (p->lib_list[id].build_date && p->lib_list[curid].build_date && p->lib_list[curid].build_date < p->lib_list[id].build_date) { - printk("BINFMT_FLAT: library %d is younger than %d", id, curid); + pr_err("library %d is younger than %d", id, curid); goto failed; } } @@ -358,8 +354,8 @@ calc_reloc(unsigned long r, struct lib_info *p, int curid, int internalp) text_len = p->lib_list[id].text_len; if (!flat_reloc_valid(r, start_brk - start_data + text_len)) { - printk("BINFMT_FLAT: reloc outside program 0x%x (0 - 0x%x/0x%x)", - (int) r,(int)(start_brk-start_data+text_len),(int)text_len); + pr_err("reloc outside program 0x%lx (0 - 0x%lx/0x%lx)", + r, start_brk-start_data+text_len, text_len); goto failed; } @@ -369,10 +365,10 @@ calc_reloc(unsigned long r, struct lib_info *p, int curid, int internalp) addr = r - text_len + start_data; /* Range checked already above so doing the range tests is redundant...*/ - return(addr); + return addr; failed: - printk(", killing %s!\n", current->comm); + pr_cont(", killing %s!\n", current->comm); send_sig(SIGSEGV, current, 0); return RELOC_FAILED; @@ -382,62 +378,57 @@ failed: static void old_reloc(unsigned long rl) { -#ifdef DEBUG - char *segment[] = { "TEXT", "DATA", "BSS", "*UNKNOWN*" }; -#endif + static const char *segment[] = { "TEXT", "DATA", "BSS", "*UNKNOWN*" }; flat_v2_reloc_t r; - unsigned long *ptr; - + unsigned long __user *ptr; + unsigned long val; + r.value = rl; #if defined(CONFIG_COLDFIRE) - ptr = (unsigned long *) (current->mm->start_code + r.reloc.offset); + ptr = (unsigned long __user *)(current->mm->start_code + r.reloc.offset); #else - ptr = (unsigned long *) (current->mm->start_data + r.reloc.offset); + ptr = (unsigned long __user *)(current->mm->start_data + r.reloc.offset); #endif + get_user(val, ptr); + + pr_debug("Relocation of variable at DATASEG+%x " + "(address %p, currently %lx) into segment %s\n", + r.reloc.offset, ptr, val, segment[r.reloc.type]); -#ifdef DEBUG - printk("Relocation of variable at DATASEG+%x " - "(address %p, currently %x) into segment %s\n", - r.reloc.offset, ptr, (int)*ptr, segment[r.reloc.type]); -#endif - switch (r.reloc.type) { case OLD_FLAT_RELOC_TYPE_TEXT: - *ptr += current->mm->start_code; + val += current->mm->start_code; break; case OLD_FLAT_RELOC_TYPE_DATA: - *ptr += current->mm->start_data; + val += current->mm->start_data; break; case OLD_FLAT_RELOC_TYPE_BSS: - *ptr += current->mm->end_data; + val += current->mm->end_data; break; default: - printk("BINFMT_FLAT: Unknown relocation type=%x\n", r.reloc.type); + pr_err("Unknown relocation type=%x\n", r.reloc.type); break; } + put_user(val, ptr); -#ifdef DEBUG - printk("Relocation became %x\n", (int)*ptr); -#endif -} + pr_debug("Relocation became %lx\n", val); +} /****************************************************************************/ -static int load_flat_file(struct linux_binprm * bprm, +static int load_flat_file(struct linux_binprm *bprm, struct lib_info *libinfo, int id, unsigned long *extra_stack) { - struct flat_hdr * hdr; - unsigned long textpos = 0, datapos = 0, result; - unsigned long realdatastart = 0; - unsigned long text_len, data_len, bss_len, stack_len, flags; - unsigned long full_data; - unsigned long len, memp = 0; - unsigned long memp_size, extra, rlim; - unsigned long *reloc = 0, *rp; + struct flat_hdr *hdr; + unsigned long textpos, datapos, realdatastart; + unsigned long text_len, data_len, bss_len, stack_len, full_data, flags; + unsigned long len, memp, memp_size, extra, rlim; + unsigned long __user *reloc, *rp; struct inode *inode; - int i, rev, relocs = 0; + int i, rev, relocs; loff_t fpos; unsigned long start_code, end_code; + ssize_t result; int ret; hdr = ((struct flat_hdr *) bprm->buf); /* exec-header */ @@ -469,20 +460,30 @@ static int load_flat_file(struct linux_binprm * bprm, } if (flags & FLAT_FLAG_KTRACE) - printk("BINFMT_FLAT: Loading file: %s\n", bprm->filename); + pr_info("Loading file: %s\n", bprm->filename); if (rev != FLAT_VERSION && rev != OLD_FLAT_VERSION) { - printk("BINFMT_FLAT: bad flat file version 0x%x (supported " - "0x%lx and 0x%lx)\n", - rev, FLAT_VERSION, OLD_FLAT_VERSION); + pr_err("bad flat file version 0x%x (supported 0x%lx and 0x%lx)\n", + rev, FLAT_VERSION, OLD_FLAT_VERSION); ret = -ENOEXEC; goto err; } - + /* Don't allow old format executables to use shared libraries */ if (rev == OLD_FLAT_VERSION && id != 0) { - printk("BINFMT_FLAT: shared libraries are not available before rev 0x%x\n", - (int) FLAT_VERSION); + pr_err("shared libraries are not available before rev 0x%lx\n", + FLAT_VERSION); + ret = -ENOEXEC; + goto err; + } + + /* + * Make sure the header params are sane. + * 28 bits (256 MB) is way more than reasonable in this case. + * If some top bits are set we have probable binary corruption. + */ + if ((text_len | data_len | bss_len | stack_len | full_data) >> 28) { + pr_err("bad header\n"); ret = -ENOEXEC; goto err; } @@ -496,7 +497,7 @@ static int load_flat_file(struct linux_binprm * bprm, #ifndef CONFIG_BINFMT_ZFLAT if (flags & (FLAT_FLAG_GZIP|FLAT_FLAG_GZDATA)) { - printk("Support for ZFLAT executables is not enabled.\n"); + pr_err("Support for ZFLAT executables is not enabled.\n"); ret = -ENOEXEC; goto err; } @@ -517,11 +518,9 @@ static int load_flat_file(struct linux_binprm * bprm, /* Flush all traces of the currently running executable */ if (id == 0) { - result = flush_old_exec(bprm); - if (result) { - ret = result; + ret = flush_old_exec(bprm); + if (ret) goto err; - } /* OK, This is the point of no return */ set_personality(PER_LINUX_32BIT); @@ -539,48 +538,48 @@ static int load_flat_file(struct linux_binprm * bprm, * case, and then the fully copied to RAM case which lumps * it all together. */ - if ((flags & (FLAT_FLAG_RAM|FLAT_FLAG_GZIP)) == 0) { + if (!IS_ENABLED(CONFIG_MMU) && !(flags & (FLAT_FLAG_RAM|FLAT_FLAG_GZIP))) { /* * this should give us a ROM ptr, but if it doesn't we don't * really care */ - DBG_FLT("BINFMT_FLAT: ROM mapping of file (we hope)\n"); + pr_debug("ROM mapping of file (we hope)\n"); textpos = vm_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_EXECUTABLE, 0); if (!textpos || IS_ERR_VALUE(textpos)) { - if (!textpos) - textpos = (unsigned long) -ENOMEM; - printk("Unable to mmap process text, errno %d\n", (int)-textpos); ret = textpos; + if (!textpos) + ret = -ENOMEM; + pr_err("Unable to mmap process text, errno %d\n", ret); goto err; } len = data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long); len = PAGE_ALIGN(len); - realdatastart = vm_mmap(0, 0, len, + realdatastart = vm_mmap(NULL, 0, len, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0); if (realdatastart == 0 || IS_ERR_VALUE(realdatastart)) { + ret = realdatastart; if (!realdatastart) - realdatastart = (unsigned long) -ENOMEM; - printk("Unable to allocate RAM for process data, errno %d\n", - (int)-realdatastart); + ret = -ENOMEM; + pr_err("Unable to allocate RAM for process data, " + "errno %d\n", ret); vm_munmap(textpos, text_len); - ret = realdatastart; goto err; } datapos = ALIGN(realdatastart + MAX_SHARED_LIBS * sizeof(unsigned long), FLAT_DATA_ALIGN); - DBG_FLT("BINFMT_FLAT: Allocated data+bss+stack (%d bytes): %x\n", - (int)(data_len + bss_len + stack_len), (int)datapos); + pr_debug("Allocated data+bss+stack (%ld bytes): %lx\n", + data_len + bss_len + stack_len, datapos); fpos = ntohl(hdr->data_start); #ifdef CONFIG_BINFMT_ZFLAT if (flags & FLAT_FLAG_GZDATA) { - result = decompress_exec(bprm, fpos, (char *) datapos, + result = decompress_exec(bprm, fpos, (char *)datapos, full_data, 0); } else #endif @@ -589,29 +588,30 @@ static int load_flat_file(struct linux_binprm * bprm, full_data); } if (IS_ERR_VALUE(result)) { - printk("Unable to read data+bss, errno %d\n", (int)-result); + ret = result; + pr_err("Unable to read data+bss, errno %d\n", ret); vm_munmap(textpos, text_len); vm_munmap(realdatastart, len); - ret = result; goto err; } - reloc = (unsigned long *) (datapos+(ntohl(hdr->reloc_start)-text_len)); + reloc = (unsigned long __user *) + (datapos + (ntohl(hdr->reloc_start) - text_len)); memp = realdatastart; memp_size = len; } else { len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long); len = PAGE_ALIGN(len); - textpos = vm_mmap(0, 0, len, + textpos = vm_mmap(NULL, 0, len, PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0); if (!textpos || IS_ERR_VALUE(textpos)) { - if (!textpos) - textpos = (unsigned long) -ENOMEM; - printk("Unable to allocate RAM for process text/data, errno %d\n", - (int)-textpos); ret = textpos; + if (!textpos) + ret = -ENOMEM; + pr_err("Unable to allocate RAM for process text/data, " + "errno %d\n", ret); goto err; } @@ -620,7 +620,7 @@ static int load_flat_file(struct linux_binprm * bprm, MAX_SHARED_LIBS * sizeof(unsigned long), FLAT_DATA_ALIGN); - reloc = (unsigned long *) + reloc = (unsigned long __user *) (datapos + (ntohl(hdr->reloc_start) - text_len)); memp = textpos; memp_size = len; @@ -629,21 +629,59 @@ static int load_flat_file(struct linux_binprm * bprm, * load it all in and treat it like a RAM load from now on */ if (flags & FLAT_FLAG_GZIP) { - result = decompress_exec(bprm, sizeof (struct flat_hdr), - (((char *) textpos) + sizeof (struct flat_hdr)), +#ifndef CONFIG_MMU + result = decompress_exec(bprm, sizeof(struct flat_hdr), + (((char *)textpos) + sizeof(struct flat_hdr)), (text_len + full_data - - sizeof (struct flat_hdr)), + - sizeof(struct flat_hdr)), 0); memmove((void *) datapos, (void *) realdatastart, full_data); +#else + /* + * This is used on MMU systems mainly for testing. + * Let's use a kernel buffer to simplify things. + */ + long unz_text_len = text_len - sizeof(struct flat_hdr); + long unz_len = unz_text_len + full_data; + char *unz_data = vmalloc(unz_len); + if (!unz_data) { + result = -ENOMEM; + } else { + result = decompress_exec(bprm, sizeof(struct flat_hdr), + unz_data, unz_len, 0); + if (result == 0 && + (copy_to_user((void __user *)textpos + sizeof(struct flat_hdr), + unz_data, unz_text_len) || + copy_to_user((void __user *)datapos, + unz_data + unz_text_len, full_data))) + result = -EFAULT; + vfree(unz_data); + } +#endif } else if (flags & FLAT_FLAG_GZDATA) { result = read_code(bprm->file, textpos, 0, text_len); - if (!IS_ERR_VALUE(result)) + if (!IS_ERR_VALUE(result)) { +#ifndef CONFIG_MMU result = decompress_exec(bprm, text_len, (char *) datapos, full_data, 0); - } - else +#else + char *unz_data = vmalloc(full_data); + if (!unz_data) { + result = -ENOMEM; + } else { + result = decompress_exec(bprm, text_len, + unz_data, full_data, 0); + if (result == 0 && + copy_to_user((void __user *)datapos, + unz_data, full_data)) + result = -EFAULT; + vfree(unz_data); + } #endif + } + } else +#endif /* CONFIG_BINFMT_ZFLAT */ { result = read_code(bprm->file, textpos, 0, text_len); if (!IS_ERR_VALUE(result)) @@ -652,21 +690,19 @@ static int load_flat_file(struct linux_binprm * bprm, full_data); } if (IS_ERR_VALUE(result)) { - printk("Unable to read code+data+bss, errno %d\n",(int)-result); + ret = result; + pr_err("Unable to read code+data+bss, errno %d\n", ret); vm_munmap(textpos, text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long)); - ret = result; goto err; } } - if (flags & FLAT_FLAG_KTRACE) - printk("Mapping is %x, Entry point is %x, data_start is %x\n", - (int)textpos, 0x00ffffff&ntohl(hdr->entry), ntohl(hdr->data_start)); + start_code = textpos + sizeof(struct flat_hdr); + end_code = textpos + text_len; + text_len -= sizeof(struct flat_hdr); /* the real code len */ /* The main program needs a little extra setup in the task structure */ - start_code = textpos + sizeof (struct flat_hdr); - end_code = textpos + text_len; if (id == 0) { current->mm->start_code = start_code; current->mm->end_code = end_code; @@ -681,19 +717,19 @@ static int load_flat_file(struct linux_binprm * bprm, */ current->mm->start_brk = datapos + data_len + bss_len; current->mm->brk = (current->mm->start_brk + 3) & ~3; +#ifndef CONFIG_MMU current->mm->context.end_brk = memp + memp_size - stack_len; +#endif } - if (flags & FLAT_FLAG_KTRACE) - printk("%s %s: TEXT=%x-%x DATA=%x-%x BSS=%x-%x\n", + if (flags & FLAT_FLAG_KTRACE) { + pr_info("Mapping is %lx, Entry point is %x, data_start is %x\n", + textpos, 0x00ffffff&ntohl(hdr->entry), ntohl(hdr->data_start)); + pr_info("%s %s: TEXT=%lx-%lx DATA=%lx-%lx BSS=%lx-%lx\n", id ? "Lib" : "Load", bprm->filename, - (int) start_code, (int) end_code, - (int) datapos, - (int) (datapos + data_len), - (int) (datapos + data_len), - (int) (((datapos + data_len + bss_len) + 3) & ~3)); - - text_len -= sizeof(struct flat_hdr); /* the real code len */ + start_code, end_code, datapos, datapos + data_len, + datapos + data_len, (datapos + data_len + bss_len + 3) & ~3); + } /* Store the current module values into the global library structure */ libinfo->lib_list[id].start_code = start_code; @@ -703,7 +739,7 @@ static int load_flat_file(struct linux_binprm * bprm, libinfo->lib_list[id].loaded = 1; libinfo->lib_list[id].entry = (0x00ffffff & ntohl(hdr->entry)) + textpos; libinfo->lib_list[id].build_date = ntohl(hdr->build_date); - + /* * We just load the allocations into some temporary memory to * help simplify all this mumbo jumbo @@ -717,15 +753,20 @@ static int load_flat_file(struct linux_binprm * bprm, * image. */ if (flags & FLAT_FLAG_GOTPIC) { - for (rp = (unsigned long *)datapos; *rp != 0xffffffff; rp++) { - unsigned long addr; - if (*rp) { - addr = calc_reloc(*rp, libinfo, id, 0); + for (rp = (unsigned long __user *)datapos; ; rp++) { + unsigned long addr, rp_val; + if (get_user(rp_val, rp)) + return -EFAULT; + if (rp_val == 0xffffffff) + break; + if (rp_val) { + addr = calc_reloc(rp_val, libinfo, id, 0); if (addr == RELOC_FAILED) { ret = -ENOEXEC; goto err; } - *rp = addr; + if (put_user(addr, rp)) + return -EFAULT; } } } @@ -742,19 +783,23 @@ static int load_flat_file(struct linux_binprm * bprm, * __start to address 4 so that is okay). */ if (rev > OLD_FLAT_VERSION) { - unsigned long persistent = 0; - for (i=0; i < relocs; i++) { + unsigned long __maybe_unused persistent = 0; + for (i = 0; i < relocs; i++) { unsigned long addr, relval; - /* Get the address of the pointer to be - relocated (of course, the address has to be - relocated first). */ - relval = ntohl(reloc[i]); - if (flat_set_persistent (relval, &persistent)) + /* + * Get the address of the pointer to be + * relocated (of course, the address has to be + * relocated first). + */ + if (get_user(relval, reloc + i)) + return -EFAULT; + relval = ntohl(relval); + if (flat_set_persistent(relval, &persistent)) continue; addr = flat_get_relocate_addr(relval); - rp = (unsigned long *) calc_reloc(addr, libinfo, id, 1); - if (rp == (unsigned long *)RELOC_FAILED) { + rp = (unsigned long __user *)calc_reloc(addr, libinfo, id, 1); + if (rp == (unsigned long __user *)RELOC_FAILED) { ret = -ENOEXEC; goto err; } @@ -780,17 +825,23 @@ static int load_flat_file(struct linux_binprm * bprm, } } } else { - for (i=0; i < relocs; i++) - old_reloc(ntohl(reloc[i])); + for (i = 0; i < relocs; i++) { + unsigned long relval; + if (get_user(relval, reloc + i)) + return -EFAULT; + relval = ntohl(relval); + old_reloc(relval); + } } - + flush_icache_range(start_code, end_code); /* zero the BSS, BRK and stack areas */ - memset((void*)(datapos + data_len), 0, bss_len + - (memp + memp_size - stack_len - /* end brk */ - libinfo->lib_list[id].start_brk) + /* start brk */ - stack_len); + if (clear_user((void __user *)(datapos + data_len), bss_len + + (memp + memp_size - stack_len - /* end brk */ + libinfo->lib_list[id].start_brk) + /* start brk */ + stack_len)) + return -EFAULT; return 0; err: @@ -846,7 +897,7 @@ out: allow_write_access(bprm.file); fput(bprm.file); - return(res); + return res; } #endif /* CONFIG_BINFMT_SHARED_FLAT */ @@ -857,18 +908,17 @@ out: * libraries. There is no binary dependent code anywhere else. */ -static int load_flat_binary(struct linux_binprm * bprm) +static int load_flat_binary(struct linux_binprm *bprm) { struct lib_info libinfo; struct pt_regs *regs = current_pt_regs(); - unsigned long p = bprm->p; - unsigned long stack_len; + unsigned long stack_len = 0; unsigned long start_addr; - unsigned long *sp; int res; int i, j; memset(&libinfo, 0, sizeof(libinfo)); + /* * We have to add the size of our arguments to our stack size * otherwise it's too easy for users to create stack overflows @@ -876,38 +926,54 @@ static int load_flat_binary(struct linux_binprm * bprm) * pedantic and include space for the argv/envp array as it may have * a lot of entries. */ -#define TOP_OF_ARGS (PAGE_SIZE * MAX_ARG_PAGES - sizeof(void *)) - stack_len = TOP_OF_ARGS - bprm->p; /* the strings */ - stack_len += (bprm->argc + 1) * sizeof(char *); /* the argv array */ - stack_len += (bprm->envc + 1) * sizeof(char *); /* the envp array */ - stack_len += FLAT_STACK_ALIGN - 1; /* reserve for upcoming alignment */ - +#ifndef CONFIG_MMU + stack_len += PAGE_SIZE * MAX_ARG_PAGES - bprm->p; /* the strings */ +#endif + stack_len += (bprm->argc + 1) * sizeof(char *); /* the argv array */ + stack_len += (bprm->envc + 1) * sizeof(char *); /* the envp array */ + stack_len = ALIGN(stack_len, FLAT_STACK_ALIGN); + res = load_flat_file(bprm, &libinfo, 0, &stack_len); if (res < 0) return res; - + /* Update data segment pointers for all libraries */ - for (i=0; i<MAX_SHARED_LIBS; i++) - if (libinfo.lib_list[i].loaded) - for (j=0; j<MAX_SHARED_LIBS; j++) - (-(j+1))[(unsigned long *)(libinfo.lib_list[i].start_data)] = - (libinfo.lib_list[j].loaded)? - libinfo.lib_list[j].start_data:UNLOADED_LIB; + for (i = 0; i < MAX_SHARED_LIBS; i++) { + if (!libinfo.lib_list[i].loaded) + continue; + for (j = 0; j < MAX_SHARED_LIBS; j++) { + unsigned long val = libinfo.lib_list[j].loaded ? + libinfo.lib_list[j].start_data : UNLOADED_LIB; + unsigned long __user *p = (unsigned long __user *) + libinfo.lib_list[i].start_data; + p -= j + 1; + if (put_user(val, p)) + return -EFAULT; + } + } install_exec_creds(bprm); set_binfmt(&flat_format); - p = ((current->mm->context.end_brk + stack_len + 3) & ~3) - 4; - DBG_FLT("p=%x\n", (int)p); +#ifdef CONFIG_MMU + res = setup_arg_pages(bprm, STACK_TOP, EXSTACK_DEFAULT); + if (!res) + res = create_flat_tables(bprm, bprm->p); +#else + /* Stash our initial stack pointer into the mm structure */ + current->mm->start_stack = + ((current->mm->context.end_brk + stack_len + 3) & ~3) - 4; + pr_debug("sp=%lx\n", current->mm->start_stack); - /* copy the arg pages onto the stack, this could be more efficient :-) */ - for (i = TOP_OF_ARGS - 1; i >= bprm->p; i--) - * (char *) --p = - ((char *) page_address(bprm->page[i/PAGE_SIZE]))[i % PAGE_SIZE]; + /* copy the arg pages onto the stack */ + res = transfer_args_to_stack(bprm, ¤t->mm->start_stack); + if (!res) + res = create_flat_tables(bprm, current->mm->start_stack); +#endif + if (res) + return res; - sp = (unsigned long *) create_flat_tables(p, bprm); - /* Fake some return addresses to ensure the call chain will * initialise library in order for us. We are required to call * lib 1 first, then 2, ... and finally the main program (id 0). @@ -915,24 +981,24 @@ static int load_flat_binary(struct linux_binprm * bprm) start_addr = libinfo.lib_list[0].entry; #ifdef CONFIG_BINFMT_SHARED_FLAT - for (i = MAX_SHARED_LIBS-1; i>0; i--) { + for (i = MAX_SHARED_LIBS-1; i > 0; i--) { if (libinfo.lib_list[i].loaded) { /* Push previos first to call address */ - --sp; put_user(start_addr, sp); + unsigned long __user *sp; + current->mm->start_stack -= sizeof(unsigned long); + sp = (unsigned long __user *)current->mm->start_stack; + __put_user(start_addr, sp); start_addr = libinfo.lib_list[i].entry; } } #endif - - /* Stash our initial stack pointer into the mm structure */ - current->mm->start_stack = (unsigned long )sp; #ifdef FLAT_PLAT_INIT FLAT_PLAT_INIT(regs); #endif - DBG_FLT("start_thread(regs=0x%x, entry=0x%x, start_stack=0x%x)\n", - (int)regs, (int)start_addr, (int)current->mm->start_stack); - + + pr_debug("start_thread(regs=0x%p, entry=0x%lx, start_stack=0x%lx)\n", + regs, start_addr, current->mm->start_stack); start_thread(regs, start_addr, current->mm->start_stack); return 0; @@ -945,9 +1011,6 @@ static int __init init_flat_binfmt(void) register_binfmt(&flat_format); return 0; } - -/****************************************************************************/ - core_initcall(init_flat_binfmt); /****************************************************************************/ diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 67a6077..53bb7af 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -55,8 +55,7 @@ struct posix_acl *btrfs_get_acl(struct inode *inode, int type) } if (size > 0) { acl = posix_acl_from_xattr(&init_user_ns, value, size); - } else if (size == -ENOENT || size == -ENODATA || size == 0) { - /* FIXME, who returns -ENOENT? I think nobody */ + } else if (size == -ERANGE || size == -ENODATA || size == 0) { acl = NULL; } else { acl = ERR_PTR(-EIO); diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c index 5fb60ea..e0f071f 100644 --- a/fs/btrfs/async-thread.c +++ b/fs/btrfs/async-thread.c @@ -34,6 +34,10 @@ struct __btrfs_workqueue { struct workqueue_struct *normal_wq; + + /* File system this workqueue services */ + struct btrfs_fs_info *fs_info; + /* List head pointing to ordered work list */ struct list_head ordered_list; @@ -70,6 +74,18 @@ void btrfs_##name(struct work_struct *arg) \ normal_work_helper(work); \ } +struct btrfs_fs_info * +btrfs_workqueue_owner(struct __btrfs_workqueue *wq) +{ + return wq->fs_info; +} + +struct btrfs_fs_info * +btrfs_work_owner(struct btrfs_work *work) +{ + return work->wq->fs_info; +} + BTRFS_WORK_HELPER(worker_helper); BTRFS_WORK_HELPER(delalloc_helper); BTRFS_WORK_HELPER(flush_delalloc_helper); @@ -94,14 +110,15 @@ BTRFS_WORK_HELPER(scrubnc_helper); BTRFS_WORK_HELPER(scrubparity_helper); static struct __btrfs_workqueue * -__btrfs_alloc_workqueue(const char *name, unsigned int flags, int limit_active, - int thresh) +__btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info, const char *name, + unsigned int flags, int limit_active, int thresh) { struct __btrfs_workqueue *ret = kzalloc(sizeof(*ret), GFP_KERNEL); if (!ret) return NULL; + ret->fs_info = fs_info; ret->limit_active = limit_active; atomic_set(&ret->pending, 0); if (thresh == 0) @@ -143,7 +160,8 @@ __btrfs_alloc_workqueue(const char *name, unsigned int flags, int limit_active, static inline void __btrfs_destroy_workqueue(struct __btrfs_workqueue *wq); -struct btrfs_workqueue *btrfs_alloc_workqueue(const char *name, +struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info, + const char *name, unsigned int flags, int limit_active, int thresh) @@ -153,7 +171,8 @@ struct btrfs_workqueue *btrfs_alloc_workqueue(const char *name, if (!ret) return NULL; - ret->normal = __btrfs_alloc_workqueue(name, flags & ~WQ_HIGHPRI, + ret->normal = __btrfs_alloc_workqueue(fs_info, name, + flags & ~WQ_HIGHPRI, limit_active, thresh); if (!ret->normal) { kfree(ret); @@ -161,8 +180,8 @@ struct btrfs_workqueue *btrfs_alloc_workqueue(const char *name, } if (flags & WQ_HIGHPRI) { - ret->high = __btrfs_alloc_workqueue(name, flags, limit_active, - thresh); + ret->high = __btrfs_alloc_workqueue(fs_info, name, flags, + limit_active, thresh); if (!ret->high) { __btrfs_destroy_workqueue(ret->normal); kfree(ret); diff --git a/fs/btrfs/async-thread.h b/fs/btrfs/async-thread.h index ad4d064..8e52484 100644 --- a/fs/btrfs/async-thread.h +++ b/fs/btrfs/async-thread.h @@ -21,6 +21,7 @@ #define __BTRFS_ASYNC_THREAD_ #include <linux/workqueue.h> +struct btrfs_fs_info; struct btrfs_workqueue; /* Internal use only */ struct __btrfs_workqueue; @@ -67,7 +68,8 @@ BTRFS_WORK_HELPER_PROTO(scrubnc_helper); BTRFS_WORK_HELPER_PROTO(scrubparity_helper); -struct btrfs_workqueue *btrfs_alloc_workqueue(const char *name, +struct btrfs_workqueue *btrfs_alloc_workqueue(struct btrfs_fs_info *fs_info, + const char *name, unsigned int flags, int limit_active, int thresh); @@ -80,4 +82,6 @@ void btrfs_queue_work(struct btrfs_workqueue *wq, void btrfs_destroy_workqueue(struct btrfs_workqueue *wq); void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max); void btrfs_set_work_high_priority(struct btrfs_work *work); +struct btrfs_fs_info *btrfs_work_owner(struct btrfs_work *work); +struct btrfs_fs_info *btrfs_workqueue_owner(struct __btrfs_workqueue *wq); #endif diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 8bb3509..2b88439 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -139,7 +139,7 @@ int __init btrfs_prelim_ref_init(void) btrfs_prelim_ref_cache = kmem_cache_create("btrfs_prelim_ref", sizeof(struct __prelim_ref), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, + SLAB_MEM_SPREAD, NULL); if (!btrfs_prelim_ref_cache) return -ENOMEM; @@ -361,7 +361,7 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info, goto out; } - if (btrfs_test_is_dummy_root(root)) { + if (btrfs_is_testing(fs_info)) { srcu_read_unlock(&fs_info->subvol_srcu, index); ret = -ENOENT; goto out; diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index cefedab..029db6e 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -403,7 +403,10 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start, } ret = btrfs_map_bio(root, bio, 0, 1); - BUG_ON(ret); /* -ENOMEM */ + if (ret) { + bio->bi_error = ret; + bio_endio(bio); + } bio_put(bio); @@ -434,7 +437,10 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start, } ret = btrfs_map_bio(root, bio, 0, 1); - BUG_ON(ret); /* -ENOMEM */ + if (ret) { + bio->bi_error = ret; + bio_endio(bio); + } bio_put(bio); return 0; diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index a85cf7d..d1c56c9 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1153,14 +1153,14 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, ret = update_ref_for_cow(trans, root, buf, cow, &last_ref); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } if (test_bit(BTRFS_ROOT_REF_COWS, &root->state)) { ret = btrfs_reloc_cow_block(trans, root, buf, cow); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } } @@ -1198,7 +1198,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, if (last_ref) { ret = tree_mod_log_free_eb(root->fs_info, buf); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } } @@ -1505,7 +1505,7 @@ static inline int should_cow_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *buf) { - if (btrfs_test_is_dummy_root(root)) + if (btrfs_is_testing(root->fs_info)) return 0; /* ensure we can see the force_cow */ @@ -1771,6 +1771,14 @@ static noinline int generic_bin_search(struct extent_buffer *eb, unsigned long map_len = 0; int err; + if (low > high) { + btrfs_err(eb->fs_info, + "%s: low (%d) > high (%d) eb %llu owner %llu level %d", + __func__, low, high, eb->start, + btrfs_header_owner(eb), btrfs_header_level(eb)); + return -EINVAL; + } + while (low < high) { mid = (low + high) / 2; offset = p + mid * item_size; @@ -1858,7 +1866,6 @@ static void root_sub_used(struct btrfs_root *root, u32 size) /* given a node and slot number, this reads the blocks it points to. The * extent buffer is returned with a reference taken (but unlocked). - * NULL is returned on error. */ static noinline struct extent_buffer *read_node_slot(struct btrfs_root *root, struct extent_buffer *parent, int slot) @@ -1866,19 +1873,16 @@ static noinline struct extent_buffer *read_node_slot(struct btrfs_root *root, int level = btrfs_header_level(parent); struct extent_buffer *eb; - if (slot < 0) - return NULL; - if (slot >= btrfs_header_nritems(parent)) - return NULL; + if (slot < 0 || slot >= btrfs_header_nritems(parent)) + return ERR_PTR(-ENOENT); BUG_ON(level == 0); eb = read_tree_block(root, btrfs_node_blockptr(parent, slot), btrfs_node_ptr_generation(parent, slot)); - if (IS_ERR(eb) || !extent_buffer_uptodate(eb)) { - if (!IS_ERR(eb)) - free_extent_buffer(eb); - eb = NULL; + if (!IS_ERR(eb) && !extent_buffer_uptodate(eb)) { + free_extent_buffer(eb); + eb = ERR_PTR(-EIO); } return eb; @@ -1931,8 +1935,8 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, /* promote the child to a root */ child = read_node_slot(root, mid, 0); - if (!child) { - ret = -EROFS; + if (IS_ERR(child)) { + ret = PTR_ERR(child); btrfs_handle_fs_error(root->fs_info, ret, NULL); goto enospc; } @@ -1970,6 +1974,9 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, return 0; left = read_node_slot(root, parent, pslot - 1); + if (IS_ERR(left)) + left = NULL; + if (left) { btrfs_tree_lock(left); btrfs_set_lock_blocking(left); @@ -1980,7 +1987,11 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, goto enospc; } } + right = read_node_slot(root, parent, pslot + 1); + if (IS_ERR(right)) + right = NULL; + if (right) { btrfs_tree_lock(right); btrfs_set_lock_blocking(right); @@ -2135,6 +2146,8 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans, return 1; left = read_node_slot(root, parent, pslot - 1); + if (IS_ERR(left)) + left = NULL; /* first, try to make some room in the middle buffer */ if (left) { @@ -2185,6 +2198,8 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans, free_extent_buffer(left); } right = read_node_slot(root, parent, pslot + 1); + if (IS_ERR(right)) + right = NULL; /* * then try to empty the right most buffer into the middle @@ -3240,7 +3255,7 @@ static int push_node_left(struct btrfs_trans_handle *trans, ret = tree_mod_log_eb_copy(root->fs_info, dst, src, dst_nritems, 0, push_items); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } copy_extent_buffer(dst, src, @@ -3315,7 +3330,7 @@ static int balance_node_right(struct btrfs_trans_handle *trans, ret = tree_mod_log_eb_copy(root->fs_info, dst, src, 0, src_nritems - push_items, push_items); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } copy_extent_buffer(dst, src, @@ -3519,7 +3534,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans, ret = tree_mod_log_eb_copy(root->fs_info, split, c, 0, mid, c_nritems - mid); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } copy_extent_buffer(split, c, @@ -3773,7 +3788,11 @@ static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root btrfs_assert_tree_locked(path->nodes[1]); right = read_node_slot(root, upper, slot + 1); - if (right == NULL) + /* + * slot + 1 is not valid or we fail to read the right node, + * no big deal, just return. + */ + if (IS_ERR(right)) return 1; btrfs_tree_lock(right); @@ -4003,7 +4022,11 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root btrfs_assert_tree_locked(path->nodes[1]); left = read_node_slot(root, path->nodes[1], slot - 1); - if (left == NULL) + /* + * slot - 1 is not valid or we fail to read the left node, + * no big deal, just return. + */ + if (IS_ERR(left)) return 1; btrfs_tree_lock(left); @@ -5210,7 +5233,10 @@ find_next_key: } btrfs_set_path_blocking(path); cur = read_node_slot(root, cur, slot); - BUG_ON(!cur); /* -ENOMEM */ + if (IS_ERR(cur)) { + ret = PTR_ERR(cur); + goto out; + } btrfs_tree_read_lock(cur); @@ -5229,15 +5255,21 @@ out: return ret; } -static void tree_move_down(struct btrfs_root *root, +static int tree_move_down(struct btrfs_root *root, struct btrfs_path *path, int *level, int root_level) { + struct extent_buffer *eb; + BUG_ON(*level == 0); - path->nodes[*level - 1] = read_node_slot(root, path->nodes[*level], - path->slots[*level]); + eb = read_node_slot(root, path->nodes[*level], path->slots[*level]); + if (IS_ERR(eb)) + return PTR_ERR(eb); + + path->nodes[*level - 1] = eb; path->slots[*level - 1] = 0; (*level)--; + return 0; } static int tree_move_next_or_upnext(struct btrfs_root *root, @@ -5282,8 +5314,7 @@ static int tree_advance(struct btrfs_root *root, if (*level == 0 || !allow_down) { ret = tree_move_next_or_upnext(root, path, level, root_level); } else { - tree_move_down(root, path, level, root_level); - ret = 0; + ret = tree_move_down(root, path, level, root_level); } if (ret >= 0) { if (*level == 0) @@ -5457,8 +5488,10 @@ int btrfs_compare_trees(struct btrfs_root *left_root, left_root_level, advance_left != ADVANCE_ONLY_NEXT, &left_key); - if (ret < 0) + if (ret == -1) left_end_reached = ADVANCE; + else if (ret < 0) + goto out; advance_left = 0; } if (advance_right && !right_end_reached) { @@ -5466,8 +5499,10 @@ int btrfs_compare_trees(struct btrfs_root *left_root, right_root_level, advance_right != ADVANCE_ONLY_NEXT, &right_key); - if (ret < 0) + if (ret == -1) right_end_reached = ADVANCE; + else if (ret < 0) + goto out; advance_right = 0; } diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 443fcc4..2fe8f89 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -117,6 +117,7 @@ static inline unsigned long btrfs_chunk_item_size(int num_stripes) #define BTRFS_FS_STATE_REMOUNTING 1 #define BTRFS_FS_STATE_TRANS_ABORTED 2 #define BTRFS_FS_STATE_DEV_REPLACING 3 +#define BTRFS_FS_STATE_DUMMY_FS_INFO 4 #define BTRFS_BACKREF_REV_MAX 256 #define BTRFS_BACKREF_REV_SHIFT 56 @@ -144,21 +145,6 @@ struct btrfs_header { u8 level; } __attribute__ ((__packed__)); -#define BTRFS_NODEPTRS_PER_BLOCK(r) (((r)->nodesize - \ - sizeof(struct btrfs_header)) / \ - sizeof(struct btrfs_key_ptr)) -#define __BTRFS_LEAF_DATA_SIZE(bs) ((bs) - sizeof(struct btrfs_header)) -#define BTRFS_LEAF_DATA_SIZE(r) (__BTRFS_LEAF_DATA_SIZE(r->nodesize)) -#define BTRFS_FILE_EXTENT_INLINE_DATA_START \ - (offsetof(struct btrfs_file_extent_item, disk_bytenr)) -#define BTRFS_MAX_INLINE_DATA_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r) - \ - sizeof(struct btrfs_item) - \ - BTRFS_FILE_EXTENT_INLINE_DATA_START) -#define BTRFS_MAX_XATTR_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r) - \ - sizeof(struct btrfs_item) -\ - sizeof(struct btrfs_dir_item)) - - /* * this is a very generous portion of the super block, giving us * room to translate 14 chunks with 3 stripes each. @@ -1114,12 +1100,11 @@ struct btrfs_subvolume_writers { #define BTRFS_ROOT_REF_COWS 1 #define BTRFS_ROOT_TRACK_DIRTY 2 #define BTRFS_ROOT_IN_RADIX 3 -#define BTRFS_ROOT_DUMMY_ROOT 4 -#define BTRFS_ROOT_ORPHAN_ITEM_INSERTED 5 -#define BTRFS_ROOT_DEFRAG_RUNNING 6 -#define BTRFS_ROOT_FORCE_COW 7 -#define BTRFS_ROOT_MULTI_LOG_TASKS 8 -#define BTRFS_ROOT_DIRTY 9 +#define BTRFS_ROOT_ORPHAN_ITEM_INSERTED 4 +#define BTRFS_ROOT_DEFRAG_RUNNING 5 +#define BTRFS_ROOT_FORCE_COW 6 +#define BTRFS_ROOT_MULTI_LOG_TASKS 7 +#define BTRFS_ROOT_DIRTY 8 /* * in ram representation of the tree. extent_root is used for all allocations @@ -1181,8 +1166,10 @@ struct btrfs_root { u64 highest_objectid; +#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS /* only used with CONFIG_BTRFS_FS_RUN_SANITY_TESTS is enabled */ u64 alloc_bytenr; +#endif u64 defrag_trans_start; struct btrfs_key defrag_progress; @@ -1259,6 +1246,39 @@ struct btrfs_root { atomic_t qgroup_meta_rsv; }; +static inline u32 __BTRFS_LEAF_DATA_SIZE(u32 blocksize) +{ + return blocksize - sizeof(struct btrfs_header); +} + +static inline u32 BTRFS_LEAF_DATA_SIZE(const struct btrfs_root *root) +{ + return __BTRFS_LEAF_DATA_SIZE(root->nodesize); +} + +static inline u32 BTRFS_MAX_ITEM_SIZE(const struct btrfs_root *root) +{ + return BTRFS_LEAF_DATA_SIZE(root) - sizeof(struct btrfs_item); +} + +static inline u32 BTRFS_NODEPTRS_PER_BLOCK(const struct btrfs_root *root) +{ + return BTRFS_LEAF_DATA_SIZE(root) / sizeof(struct btrfs_key_ptr); +} + +#define BTRFS_FILE_EXTENT_INLINE_DATA_START \ + (offsetof(struct btrfs_file_extent_item, disk_bytenr)) +static inline u32 BTRFS_MAX_INLINE_DATA_SIZE(const struct btrfs_root *root) +{ + return BTRFS_MAX_ITEM_SIZE(root) - + BTRFS_FILE_EXTENT_INLINE_DATA_START; +} + +static inline u32 BTRFS_MAX_XATTR_SIZE(const struct btrfs_root *root) +{ + return BTRFS_MAX_ITEM_SIZE(root) - sizeof(struct btrfs_dir_item); +} + /* * Flags for mount options. * @@ -1299,21 +1319,21 @@ struct btrfs_root { #define btrfs_clear_opt(o, opt) ((o) &= ~BTRFS_MOUNT_##opt) #define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt) #define btrfs_raw_test_opt(o, opt) ((o) & BTRFS_MOUNT_##opt) -#define btrfs_test_opt(root, opt) ((root)->fs_info->mount_opt & \ +#define btrfs_test_opt(fs_info, opt) ((fs_info)->mount_opt & \ BTRFS_MOUNT_##opt) -#define btrfs_set_and_info(root, opt, fmt, args...) \ +#define btrfs_set_and_info(fs_info, opt, fmt, args...) \ { \ - if (!btrfs_test_opt(root, opt)) \ - btrfs_info(root->fs_info, fmt, ##args); \ - btrfs_set_opt(root->fs_info->mount_opt, opt); \ + if (!btrfs_test_opt(fs_info, opt)) \ + btrfs_info(fs_info, fmt, ##args); \ + btrfs_set_opt(fs_info->mount_opt, opt); \ } -#define btrfs_clear_and_info(root, opt, fmt, args...) \ +#define btrfs_clear_and_info(fs_info, opt, fmt, args...) \ { \ - if (btrfs_test_opt(root, opt)) \ - btrfs_info(root->fs_info, fmt, ##args); \ - btrfs_clear_opt(root->fs_info->mount_opt, opt); \ + if (btrfs_test_opt(fs_info, opt)) \ + btrfs_info(fs_info, fmt, ##args); \ + btrfs_clear_opt(fs_info->mount_opt, opt); \ } #ifdef CONFIG_BTRFS_DEBUG @@ -1321,9 +1341,9 @@ static inline int btrfs_should_fragment_free_space(struct btrfs_root *root, struct btrfs_block_group_cache *block_group) { - return (btrfs_test_opt(root, FRAGMENT_METADATA) && + return (btrfs_test_opt(root->fs_info, FRAGMENT_METADATA) && block_group->flags & BTRFS_BLOCK_GROUP_METADATA) || - (btrfs_test_opt(root, FRAGMENT_DATA) && + (btrfs_test_opt(root->fs_info, FRAGMENT_DATA) && block_group->flags & BTRFS_BLOCK_GROUP_DATA); } #endif @@ -2886,9 +2906,6 @@ void btrfs_put_tree_mod_seq(struct btrfs_fs_info *fs_info, int btrfs_old_root_level(struct btrfs_root *root, u64 time_seq); /* root-item.c */ -int btrfs_find_root_ref(struct btrfs_root *tree_root, - struct btrfs_path *path, - u64 root_id, u64 ref_id); int btrfs_add_root_ref(struct btrfs_trans_handle *trans, struct btrfs_root *tree_root, u64 root_id, u64 ref_id, u64 dirid, u64 sequence, @@ -3362,23 +3379,23 @@ const char *btrfs_decode_error(int errno); __cold void __btrfs_abort_transaction(struct btrfs_trans_handle *trans, - struct btrfs_root *root, const char *function, + const char *function, unsigned int line, int errno); /* * Call btrfs_abort_transaction as early as possible when an error condition is * detected, that way the exact line number is reported. */ -#define btrfs_abort_transaction(trans, root, errno) \ +#define btrfs_abort_transaction(trans, errno) \ do { \ /* Report first abort since mount */ \ if (!test_and_set_bit(BTRFS_FS_STATE_TRANS_ABORTED, \ - &((root)->fs_info->fs_state))) { \ + &((trans)->fs_info->fs_state))) { \ WARN(1, KERN_DEBUG \ "BTRFS: Transaction aborted (error %d)\n", \ (errno)); \ } \ - __btrfs_abort_transaction((trans), (root), __func__, \ + __btrfs_abort_transaction((trans), __func__, \ __LINE__, (errno)); \ } while (0) @@ -3610,13 +3627,13 @@ static inline int btrfs_defrag_cancelled(struct btrfs_fs_info *fs_info) void btrfs_test_destroy_inode(struct inode *inode); #endif -static inline int btrfs_test_is_dummy_root(struct btrfs_root *root) +static inline int btrfs_is_testing(struct btrfs_fs_info *fs_info) { #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS - if (unlikely(test_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state))) + if (unlikely(test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, + &fs_info->fs_state))) return 1; #endif return 0; } - #endif diff --git a/fs/btrfs/dedupe.h b/fs/btrfs/dedupe.h new file mode 100644 index 0000000..83ebfe2 --- /dev/null +++ b/fs/btrfs/dedupe.h @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2016 Fujitsu. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License v2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 021110-1307, USA. + */ + +#ifndef __BTRFS_DEDUPE__ +#define __BTRFS_DEDUPE__ + +/* later in-band dedupe will expand this struct */ +struct btrfs_dedupe_hash; +#endif diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index dd3c040..3eeb9cd 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -34,7 +34,7 @@ int __init btrfs_delayed_inode_init(void) delayed_node_cache = kmem_cache_create("btrfs_delayed_node", sizeof(struct btrfs_delayed_node), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, + SLAB_MEM_SPREAD, NULL); if (!delayed_node_cache) return -ENOMEM; @@ -1170,7 +1170,7 @@ static int __btrfs_run_delayed_items(struct btrfs_trans_handle *trans, if (ret) { btrfs_release_delayed_node(curr_node); curr_node = NULL; - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); break; } diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c index 430b368..b6d210e 100644 --- a/fs/btrfs/delayed-ref.c +++ b/fs/btrfs/delayed-ref.c @@ -606,7 +606,8 @@ add_delayed_ref_head(struct btrfs_fs_info *fs_info, qrecord->num_bytes = num_bytes; qrecord->old_roots = NULL; - qexisting = btrfs_qgroup_insert_dirty_extent(delayed_refs, + qexisting = btrfs_qgroup_insert_dirty_extent(fs_info, + delayed_refs, qrecord); if (qexisting) kfree(qrecord); @@ -615,7 +616,7 @@ add_delayed_ref_head(struct btrfs_fs_info *fs_info, spin_lock_init(&head_ref->lock); mutex_init(&head_ref->mutex); - trace_add_delayed_ref_head(ref, head_ref, action); + trace_add_delayed_ref_head(fs_info, ref, head_ref, action); existing = htree_insert(&delayed_refs->href_root, &head_ref->href_node); @@ -682,7 +683,7 @@ add_delayed_tree_ref(struct btrfs_fs_info *fs_info, ref->type = BTRFS_TREE_BLOCK_REF_KEY; full_ref->level = level; - trace_add_delayed_tree_ref(ref, full_ref, action); + trace_add_delayed_tree_ref(fs_info, ref, full_ref, action); ret = add_delayed_ref_tail_merge(trans, delayed_refs, head_ref, ref); @@ -739,7 +740,7 @@ add_delayed_data_ref(struct btrfs_fs_info *fs_info, full_ref->objectid = owner; full_ref->offset = offset; - trace_add_delayed_data_ref(ref, full_ref, action); + trace_add_delayed_data_ref(fs_info, ref, full_ref, action); ret = add_delayed_ref_tail_merge(trans, delayed_refs, head_ref, ref); @@ -940,28 +941,28 @@ int btrfs_delayed_ref_init(void) btrfs_delayed_ref_head_cachep = kmem_cache_create( "btrfs_delayed_ref_head", sizeof(struct btrfs_delayed_ref_head), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL); + SLAB_MEM_SPREAD, NULL); if (!btrfs_delayed_ref_head_cachep) goto fail; btrfs_delayed_tree_ref_cachep = kmem_cache_create( "btrfs_delayed_tree_ref", sizeof(struct btrfs_delayed_tree_ref), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL); + SLAB_MEM_SPREAD, NULL); if (!btrfs_delayed_tree_ref_cachep) goto fail; btrfs_delayed_data_ref_cachep = kmem_cache_create( "btrfs_delayed_data_ref", sizeof(struct btrfs_delayed_data_ref), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL); + SLAB_MEM_SPREAD, NULL); if (!btrfs_delayed_data_ref_cachep) goto fail; btrfs_delayed_extent_op_cachep = kmem_cache_create( "btrfs_delayed_extent_op", sizeof(struct btrfs_delayed_extent_op), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL); + SLAB_MEM_SPREAD, NULL); if (!btrfs_delayed_extent_op_cachep) goto fail; diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index 63ef9cd..e9bbff3 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -142,7 +142,7 @@ no_valid_dev_replace_entry_found: * missing */ if (!dev_replace->srcdev && - !btrfs_test_opt(dev_root, DEGRADED)) { + !btrfs_test_opt(dev_root->fs_info, DEGRADED)) { ret = -EIO; btrfs_warn(fs_info, "cannot mount because device replace operation is ongoing and"); @@ -151,7 +151,7 @@ no_valid_dev_replace_entry_found: src_devid); } if (!dev_replace->tgtdev && - !btrfs_test_opt(dev_root, DEGRADED)) { + !btrfs_test_opt(dev_root->fs_info, DEGRADED)) { ret = -EIO; btrfs_warn(fs_info, "cannot mount because device replace operation is ongoing and"); diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 9a726de..87dad55 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -101,7 +101,7 @@ int __init btrfs_end_io_wq_init(void) btrfs_end_io_wq_cache = kmem_cache_create("btrfs_end_io_wq", sizeof(struct btrfs_end_io_wq), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, + SLAB_MEM_SPREAD, NULL); if (!btrfs_end_io_wq_cache) return -ENOMEM; @@ -1140,7 +1140,7 @@ struct extent_buffer *btrfs_find_tree_block(struct btrfs_fs_info *fs_info, struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root, u64 bytenr) { - if (btrfs_test_is_dummy_root(root)) + if (btrfs_is_testing(root->fs_info)) return alloc_test_extent_buffer(root->fs_info, bytenr, root->nodesize); return alloc_extent_buffer(root->fs_info, bytenr); @@ -1227,6 +1227,7 @@ static void __setup_root(u32 nodesize, u32 sectorsize, u32 stripesize, struct btrfs_root *root, struct btrfs_fs_info *fs_info, u64 objectid) { + bool dummy = test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state); root->node = NULL; root->commit_root = NULL; root->sectorsize = sectorsize; @@ -1281,14 +1282,14 @@ static void __setup_root(u32 nodesize, u32 sectorsize, u32 stripesize, root->log_transid = 0; root->log_transid_committed = -1; root->last_log_commit = 0; - if (fs_info) + if (!dummy) extent_io_tree_init(&root->dirty_log_pages, fs_info->btree_inode->i_mapping); memset(&root->root_key, 0, sizeof(root->root_key)); memset(&root->root_item, 0, sizeof(root->root_item)); memset(&root->defrag_progress, 0, sizeof(root->defrag_progress)); - if (fs_info) + if (!dummy) root->defrag_trans_start = fs_info->generation; else root->defrag_trans_start = 0; @@ -1309,17 +1310,20 @@ static struct btrfs_root *btrfs_alloc_root(struct btrfs_fs_info *fs_info, #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS /* Should only be used by the testing infrastructure */ -struct btrfs_root *btrfs_alloc_dummy_root(u32 sectorsize, u32 nodesize) +struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info, + u32 sectorsize, u32 nodesize) { struct btrfs_root *root; - root = btrfs_alloc_root(NULL, GFP_KERNEL); + if (!fs_info) + return ERR_PTR(-EINVAL); + + root = btrfs_alloc_root(fs_info, GFP_KERNEL); if (!root) return ERR_PTR(-ENOMEM); /* We don't use the stripesize in selftest, set it as sectorsize */ - __setup_root(nodesize, sectorsize, sectorsize, root, NULL, + __setup_root(nodesize, sectorsize, sectorsize, root, fs_info, BTRFS_ROOT_TREE_OBJECTID); - set_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state); root->alloc_bytenr = 0; return root; @@ -1594,14 +1598,14 @@ int btrfs_init_fs_root(struct btrfs_root *root) ret = get_anon_bdev(&root->anon_dev); if (ret) - goto free_writers; + goto fail; mutex_lock(&root->objectid_mutex); ret = btrfs_find_highest_objectid(root, &root->highest_objectid); if (ret) { mutex_unlock(&root->objectid_mutex); - goto free_root_dev; + goto fail; } ASSERT(root->highest_objectid <= BTRFS_LAST_FREE_OBJECTID); @@ -1609,14 +1613,8 @@ int btrfs_init_fs_root(struct btrfs_root *root) mutex_unlock(&root->objectid_mutex); return 0; - -free_root_dev: - free_anon_bdev(root->anon_dev); -free_writers: - btrfs_free_subvolume_writers(root->subv_writers); fail: - kfree(root->free_ino_ctl); - kfree(root->free_ino_pinned); + /* the caller is responsible to call free_fs_root */ return ret; } @@ -2310,17 +2308,19 @@ static int btrfs_init_workqueues(struct btrfs_fs_info *fs_info, unsigned int flags = WQ_MEM_RECLAIM | WQ_FREEZABLE | WQ_UNBOUND; fs_info->workers = - btrfs_alloc_workqueue("worker", flags | WQ_HIGHPRI, - max_active, 16); + btrfs_alloc_workqueue(fs_info, "worker", + flags | WQ_HIGHPRI, max_active, 16); fs_info->delalloc_workers = - btrfs_alloc_workqueue("delalloc", flags, max_active, 2); + btrfs_alloc_workqueue(fs_info, "delalloc", + flags, max_active, 2); fs_info->flush_workers = - btrfs_alloc_workqueue("flush_delalloc", flags, max_active, 0); + btrfs_alloc_workqueue(fs_info, "flush_delalloc", + flags, max_active, 0); fs_info->caching_workers = - btrfs_alloc_workqueue("cache", flags, max_active, 0); + btrfs_alloc_workqueue(fs_info, "cache", flags, max_active, 0); /* * a higher idle thresh on the submit workers makes it much more @@ -2328,41 +2328,48 @@ static int btrfs_init_workqueues(struct btrfs_fs_info *fs_info, * devices */ fs_info->submit_workers = - btrfs_alloc_workqueue("submit", flags, + btrfs_alloc_workqueue(fs_info, "submit", flags, min_t(u64, fs_devices->num_devices, max_active), 64); fs_info->fixup_workers = - btrfs_alloc_workqueue("fixup", flags, 1, 0); + btrfs_alloc_workqueue(fs_info, "fixup", flags, 1, 0); /* * endios are largely parallel and should have a very * low idle thresh */ fs_info->endio_workers = - btrfs_alloc_workqueue("endio", flags, max_active, 4); + btrfs_alloc_workqueue(fs_info, "endio", flags, max_active, 4); fs_info->endio_meta_workers = - btrfs_alloc_workqueue("endio-meta", flags, max_active, 4); + btrfs_alloc_workqueue(fs_info, "endio-meta", flags, + max_active, 4); fs_info->endio_meta_write_workers = - btrfs_alloc_workqueue("endio-meta-write", flags, max_active, 2); + btrfs_alloc_workqueue(fs_info, "endio-meta-write", flags, + max_active, 2); fs_info->endio_raid56_workers = - btrfs_alloc_workqueue("endio-raid56", flags, max_active, 4); + btrfs_alloc_workqueue(fs_info, "endio-raid56", flags, + max_active, 4); fs_info->endio_repair_workers = - btrfs_alloc_workqueue("endio-repair", flags, 1, 0); + btrfs_alloc_workqueue(fs_info, "endio-repair", flags, 1, 0); fs_info->rmw_workers = - btrfs_alloc_workqueue("rmw", flags, max_active, 2); + btrfs_alloc_workqueue(fs_info, "rmw", flags, max_active, 2); fs_info->endio_write_workers = - btrfs_alloc_workqueue("endio-write", flags, max_active, 2); + btrfs_alloc_workqueue(fs_info, "endio-write", flags, + max_active, 2); fs_info->endio_freespace_worker = - btrfs_alloc_workqueue("freespace-write", flags, max_active, 0); + btrfs_alloc_workqueue(fs_info, "freespace-write", flags, + max_active, 0); fs_info->delayed_workers = - btrfs_alloc_workqueue("delayed-meta", flags, max_active, 0); + btrfs_alloc_workqueue(fs_info, "delayed-meta", flags, + max_active, 0); fs_info->readahead_workers = - btrfs_alloc_workqueue("readahead", flags, max_active, 2); + btrfs_alloc_workqueue(fs_info, "readahead", flags, + max_active, 2); fs_info->qgroup_rescan_workers = - btrfs_alloc_workqueue("qgroup-rescan", flags, 1, 0); + btrfs_alloc_workqueue(fs_info, "qgroup-rescan", flags, 1, 0); fs_info->extent_workers = - btrfs_alloc_workqueue("extent-refs", flags, + btrfs_alloc_workqueue(fs_info, "extent-refs", flags, min_t(u64, fs_devices->num_devices, max_active), 8); @@ -3010,8 +3017,8 @@ retry_root_backup: if (IS_ERR(fs_info->transaction_kthread)) goto fail_cleaner; - if (!btrfs_test_opt(tree_root, SSD) && - !btrfs_test_opt(tree_root, NOSSD) && + if (!btrfs_test_opt(tree_root->fs_info, SSD) && + !btrfs_test_opt(tree_root->fs_info, NOSSD) && !fs_info->fs_devices->rotating) { btrfs_info(fs_info, "detected SSD devices, enabling SSD mode"); btrfs_set_opt(fs_info->mount_opt, SSD); @@ -3024,9 +3031,9 @@ retry_root_backup: btrfs_apply_pending_changes(fs_info); #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY - if (btrfs_test_opt(tree_root, CHECK_INTEGRITY)) { + if (btrfs_test_opt(tree_root->fs_info, CHECK_INTEGRITY)) { ret = btrfsic_mount(tree_root, fs_devices, - btrfs_test_opt(tree_root, + btrfs_test_opt(tree_root->fs_info, CHECK_INTEGRITY_INCLUDING_EXTENT_DATA) ? 1 : 0, fs_info->check_integrity_print_mask); @@ -3042,7 +3049,7 @@ retry_root_backup: /* do not make disk changes in broken FS or nologreplay is given */ if (btrfs_super_log_root(disk_super) != 0 && - !btrfs_test_opt(tree_root, NOLOGREPLAY)) { + !btrfs_test_opt(tree_root->fs_info, NOLOGREPLAY)) { ret = btrfs_replay_log(fs_info, fs_devices); if (ret) { err = ret; @@ -3083,7 +3090,7 @@ retry_root_backup: if (sb->s_flags & MS_RDONLY) return 0; - if (btrfs_test_opt(tree_root, FREE_SPACE_TREE) && + if (btrfs_test_opt(tree_root->fs_info, FREE_SPACE_TREE) && !btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) { btrfs_info(fs_info, "creating free space tree"); ret = btrfs_create_free_space_tree(fs_info); @@ -3120,7 +3127,7 @@ retry_root_backup: btrfs_qgroup_rescan_resume(fs_info); - if (btrfs_test_opt(tree_root, CLEAR_CACHE) && + if (btrfs_test_opt(tree_root->fs_info, CLEAR_CACHE) && btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) { btrfs_info(fs_info, "clearing free space tree"); ret = btrfs_clear_free_space_tree(fs_info); @@ -3141,7 +3148,7 @@ retry_root_backup: close_ctree(tree_root); return ret; } - } else if (btrfs_test_opt(tree_root, RESCAN_UUID_TREE) || + } else if (btrfs_test_opt(tree_root->fs_info, RESCAN_UUID_TREE) || fs_info->generation != btrfs_super_uuid_tree_generation(disk_super)) { btrfs_info(fs_info, "checking UUID tree"); @@ -3218,7 +3225,7 @@ fail: return err; recovery_tree_root: - if (!btrfs_test_opt(tree_root, USEBACKUPROOT)) + if (!btrfs_test_opt(tree_root->fs_info, USEBACKUPROOT)) goto fail_tree_roots; free_root_pointers(fs_info, 0); @@ -3634,7 +3641,7 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors) int total_errors = 0; u64 flags; - do_barriers = !btrfs_test_opt(root, NOBARRIER); + do_barriers = !btrfs_test_opt(root->fs_info, NOBARRIER); backup_super_roots(root->fs_info); sb = root->fs_info->super_for_commit; @@ -3918,7 +3925,7 @@ void close_ctree(struct btrfs_root *root) iput(fs_info->btree_inode); #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY - if (btrfs_test_opt(root, CHECK_INTEGRITY)) + if (btrfs_test_opt(root->fs_info, CHECK_INTEGRITY)) btrfsic_unmount(root, fs_info->fs_devices); #endif diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index dbf3e1a..b3207a0e 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -90,7 +90,8 @@ void btrfs_drop_and_free_fs_root(struct btrfs_fs_info *fs_info, void btrfs_free_fs_root(struct btrfs_root *root); #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS -struct btrfs_root *btrfs_alloc_dummy_root(u32 sectorsize, u32 nodesize); +struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info, + u32 sectorsize, u32 nodesize); #endif /* diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index e9376b1..61b494e 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2180,7 +2180,7 @@ static int __btrfs_inc_extent_ref(struct btrfs_trans_handle *trans, path, bytenr, parent, root_objectid, owner, offset, refs_to_add); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); out: btrfs_free_path(path); return ret; @@ -2204,7 +2204,7 @@ static int run_delayed_data_ref(struct btrfs_trans_handle *trans, ins.type = BTRFS_EXTENT_ITEM_KEY; ref = btrfs_delayed_node_to_data_ref(node); - trace_run_delayed_data_ref(node, ref, node->action); + trace_run_delayed_data_ref(root->fs_info, node, ref, node->action); if (node->type == BTRFS_SHARED_DATA_REF_KEY) parent = ref->parent; @@ -2359,7 +2359,7 @@ static int run_delayed_tree_ref(struct btrfs_trans_handle *trans, SKINNY_METADATA); ref = btrfs_delayed_node_to_tree_ref(node); - trace_run_delayed_tree_ref(node, ref, node->action); + trace_run_delayed_tree_ref(root->fs_info, node, ref, node->action); if (node->type == BTRFS_SHARED_BLOCK_REF_KEY) parent = ref->parent; @@ -2423,7 +2423,8 @@ static int run_one_delayed_ref(struct btrfs_trans_handle *trans, */ BUG_ON(extent_op); head = btrfs_delayed_node_to_head(node); - trace_run_delayed_ref_head(node, head, node->action); + trace_run_delayed_ref_head(root->fs_info, node, head, + node->action); if (insert_reserved) { btrfs_pin_extent(root, node->bytenr, @@ -2778,7 +2779,7 @@ u64 btrfs_csum_bytes_to_leaves(struct btrfs_root *root, u64 csum_bytes) u64 num_csums_per_leaf; u64 num_csums; - csum_size = BTRFS_LEAF_DATA_SIZE(root) - sizeof(struct btrfs_item); + csum_size = BTRFS_MAX_ITEM_SIZE(root); num_csums_per_leaf = div64_u64(csum_size, (u64)btrfs_super_csum_size(root->fs_info->super_copy)); num_csums = div64_u64(csum_bytes, root->sectorsize); @@ -2970,7 +2971,7 @@ again: trans->can_flush_pending_bgs = false; ret = __btrfs_run_delayed_refs(trans, root, count); if (ret < 0) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } @@ -3234,7 +3235,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans, u64, u64, u64, u64, u64, u64); - if (btrfs_test_is_dummy_root(root)) + if (btrfs_is_testing(root->fs_info)) return 0; ref_root = btrfs_header_owner(buf); @@ -3429,7 +3430,7 @@ again: * transaction, this only happens in really bad situations * anyway. */ - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_put; } WARN_ON(ret); @@ -3447,7 +3448,7 @@ again: spin_lock(&block_group->lock); if (block_group->cached != BTRFS_CACHE_FINISHED || - !btrfs_test_opt(root, SPACE_CACHE)) { + !btrfs_test_opt(root->fs_info, SPACE_CACHE)) { /* * don't bother trying to write stuff out _if_ * a) we're not cached, @@ -3524,7 +3525,7 @@ int btrfs_setup_space_cache(struct btrfs_trans_handle *trans, struct btrfs_path *path; if (list_empty(&cur_trans->dirty_bgs) || - !btrfs_test_opt(root, SPACE_CACHE)) + !btrfs_test_opt(root->fs_info, SPACE_CACHE)) return 0; path = btrfs_alloc_path(); @@ -3669,7 +3670,7 @@ again: } spin_unlock(&cur_trans->dirty_bgs_lock); } else if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); } } @@ -3815,7 +3816,7 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans, cache); } if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); } /* if its not on the io list, we need to put the block group */ @@ -4443,7 +4444,7 @@ void check_system_chunk(struct btrfs_trans_handle *trans, thresh = btrfs_calc_trunc_metadata_size(root, num_devs) + btrfs_calc_trans_metadata_size(root, 1); - if (left < thresh && btrfs_test_opt(root, ENOSPC_DEBUG)) { + if (left < thresh && btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) { btrfs_info(root->fs_info, "left=%llu, need=%llu, flags=%llu", left, thresh, type); dump_space_info(info, 0, 0); @@ -4588,7 +4589,7 @@ out: */ if (trans->can_flush_pending_bgs && trans->chunk_bytes_reserved >= (u64)SZ_2M) { - btrfs_create_pending_block_groups(trans, trans->root); + btrfs_create_pending_block_groups(trans, extent_root); btrfs_trans_release_chunk_metadata(trans); } return ret; @@ -5729,7 +5730,7 @@ void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans, */ void btrfs_trans_release_chunk_metadata(struct btrfs_trans_handle *trans) { - struct btrfs_fs_info *fs_info = trans->root->fs_info; + struct btrfs_fs_info *fs_info = trans->fs_info; if (!trans->chunk_bytes_reserved) return; @@ -6100,7 +6101,7 @@ void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes) if (dropped > 0) to_free += btrfs_calc_trans_metadata_size(root, dropped); - if (btrfs_test_is_dummy_root(root)) + if (btrfs_is_testing(root->fs_info)) return; trace_btrfs_space_reservation(root->fs_info, "delalloc", @@ -6215,7 +6216,7 @@ static int update_block_group(struct btrfs_trans_handle *trans, spin_lock(&cache->space_info->lock); spin_lock(&cache->lock); - if (btrfs_test_opt(root, SPACE_CACHE) && + if (btrfs_test_opt(root->fs_info, SPACE_CACHE) && cache->disk_cache_state < BTRFS_DC_CLEAR) cache->disk_cache_state = BTRFS_DC_CLEAR; @@ -6597,7 +6598,7 @@ fetch_cluster_info(struct btrfs_root *root, struct btrfs_space_info *space_info, u64 *empty_cluster) { struct btrfs_free_cluster *ret = NULL; - bool ssd = btrfs_test_opt(root, SSD); + bool ssd = btrfs_test_opt(root->fs_info, SSD); *empty_cluster = 0; if (btrfs_mixed_space_info(space_info)) @@ -6742,7 +6743,7 @@ int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans, break; } - if (btrfs_test_opt(root, DISCARD)) + if (btrfs_test_opt(root->fs_info, DISCARD)) ret = btrfs_discard_extent(root, start, end + 1 - start, NULL); @@ -6880,7 +6881,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, NULL, refs_to_drop, is_data, &last_ref); if (ret) { - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } btrfs_release_path(path); @@ -6929,7 +6930,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, path->nodes[0]); } if (ret < 0) { - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } extent_slot = path->slots[0]; @@ -6940,10 +6941,10 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, "unable to find ref byte nr %llu parent %llu root %llu owner %llu offset %llu", bytenr, parent, root_objectid, owner_objectid, owner_offset); - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } else { - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -6955,7 +6956,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, ret = convert_extent_item_v0(trans, extent_root, path, owner_objectid, 0); if (ret < 0) { - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -6974,7 +6975,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, btrfs_print_leaf(extent_root, path->nodes[0]); } if (ret < 0) { - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -6999,7 +7000,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, btrfs_err(info, "trying to drop %d refs but we only have %Lu " "for bytenr %Lu", refs_to_drop, refs, bytenr); ret = -EINVAL; - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } refs -= refs_to_drop; @@ -7022,7 +7023,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, iref, refs_to_drop, is_data, &last_ref); if (ret) { - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } } @@ -7045,7 +7046,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, ret = btrfs_del_items(trans, extent_root, path, path->slots[0], num_to_del); if (ret) { - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } btrfs_release_path(path); @@ -7053,7 +7054,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, if (is_data) { ret = btrfs_del_csums(trans, root, bytenr, num_bytes); if (ret) { - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } } @@ -7061,13 +7062,13 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, ret = add_to_free_space_tree(trans, root->fs_info, bytenr, num_bytes); if (ret) { - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } ret = update_block_group(trans, root, bytenr, num_bytes, 0); if (ret) { - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } } @@ -7216,7 +7217,7 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, int ret; struct btrfs_fs_info *fs_info = root->fs_info; - if (btrfs_test_is_dummy_root(root)) + if (btrfs_is_testing(fs_info)) return 0; add_pinned_bytes(root->fs_info, num_bytes, owner, root_objectid); @@ -7851,8 +7852,7 @@ loop: * can do more things. */ if (ret < 0 && ret != -ENOSPC) - btrfs_abort_transaction(trans, - root, ret); + btrfs_abort_transaction(trans, ret); else ret = 0; if (!exist) @@ -7906,8 +7906,8 @@ static void dump_space_info(struct btrfs_space_info *info, u64 bytes, printk(KERN_INFO "BTRFS: space_info %llu has %llu free, is %sfull\n", info->flags, info->total_bytes - info->bytes_used - info->bytes_pinned - - info->bytes_reserved - info->bytes_readonly, - (info->full) ? "" : "not "); + info->bytes_reserved - info->bytes_readonly - + info->bytes_may_use, (info->full) ? "" : "not "); printk(KERN_INFO "BTRFS: space_info total=%llu, used=%llu, pinned=%llu, " "reserved=%llu, may_use=%llu, readonly=%llu\n", info->total_bytes, info->bytes_used, info->bytes_pinned, @@ -7961,7 +7961,7 @@ again: if (num_bytes == min_alloc_size) final_tried = true; goto again; - } else if (btrfs_test_opt(root, ENOSPC_DEBUG)) { + } else if (btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) { struct btrfs_space_info *sinfo; sinfo = __find_space_info(root->fs_info, flags); @@ -7992,7 +7992,7 @@ static int __btrfs_free_reserved_extent(struct btrfs_root *root, if (pin) pin_down_extent(root, cache, start, len, 1); else { - if (btrfs_test_opt(root, DISCARD)) + if (btrfs_test_opt(root->fs_info, DISCARD)) ret = btrfs_discard_extent(root, start, len, NULL); btrfs_add_free_space(cache, start, len); btrfs_update_reserved_bytes(cache, len, RESERVE_FREE, delalloc); @@ -8300,7 +8300,7 @@ again: goto again; } - if (btrfs_test_opt(root, ENOSPC_DEBUG)) { + if (btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) { static DEFINE_RATELIMIT_STATE(_rs, DEFAULT_RATELIMIT_INTERVAL * 10, /*DEFAULT_RATELIMIT_BURST*/ 1); @@ -8354,13 +8354,15 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans, bool skinny_metadata = btrfs_fs_incompat(root->fs_info, SKINNY_METADATA); - if (btrfs_test_is_dummy_root(root)) { +#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS + if (btrfs_is_testing(root->fs_info)) { buf = btrfs_init_new_buffer(trans, root, root->alloc_bytenr, level); if (!IS_ERR(buf)) root->alloc_bytenr += blocksize; return buf; } +#endif block_rsv = use_block_rsv(trans, root, blocksize); if (IS_ERR(block_rsv)) @@ -8540,7 +8542,8 @@ static int record_one_subtree_extent(struct btrfs_trans_handle *trans, delayed_refs = &trans->transaction->delayed_refs; spin_lock(&delayed_refs->lock); - if (btrfs_qgroup_insert_dirty_extent(delayed_refs, qrecord)) + if (btrfs_qgroup_insert_dirty_extent(trans->fs_info, + delayed_refs, qrecord)) kfree(qrecord); spin_unlock(&delayed_refs->lock); @@ -9325,7 +9328,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root, &root->root_key, root_item); if (ret) { - btrfs_abort_transaction(trans, tree_root, ret); + btrfs_abort_transaction(trans, ret); err = ret; goto out_end_trans; } @@ -9352,7 +9355,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root, ret = btrfs_del_root(trans, tree_root, &root->root_key); if (ret) { - btrfs_abort_transaction(trans, tree_root, ret); + btrfs_abort_transaction(trans, ret); goto out_end_trans; } @@ -9360,7 +9363,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root, ret = btrfs_find_root(tree_root, &root->root_key, path, NULL, NULL); if (ret < 0) { - btrfs_abort_transaction(trans, tree_root, ret); + btrfs_abort_transaction(trans, ret); err = ret; goto out_end_trans; } else if (ret > 0) { @@ -9731,7 +9734,7 @@ int btrfs_can_relocate(struct btrfs_root *root, u64 bytenr) int full = 0; int ret = 0; - debug = btrfs_test_opt(root, ENOSPC_DEBUG); + debug = btrfs_test_opt(root->fs_info, ENOSPC_DEBUG); block_group = btrfs_lookup_block_group(root->fs_info, bytenr); @@ -9887,7 +9890,22 @@ static int find_first_block_group(struct btrfs_root *root, if (found_key.objectid >= key->objectid && found_key.type == BTRFS_BLOCK_GROUP_ITEM_KEY) { - ret = 0; + struct extent_map_tree *em_tree; + struct extent_map *em; + + em_tree = &root->fs_info->mapping_tree.map_tree; + read_lock(&em_tree->lock); + em = lookup_extent_mapping(em_tree, found_key.objectid, + found_key.offset); + read_unlock(&em_tree->lock); + if (!em) { + btrfs_err(root->fs_info, + "logical %llu len %llu found bg but no related chunk", + found_key.objectid, found_key.offset); + ret = -ENOENT; + } else { + ret = 0; + } goto out; } path->slots[0]++; @@ -10129,10 +10147,10 @@ int btrfs_read_block_groups(struct btrfs_root *root) path->reada = READA_FORWARD; cache_gen = btrfs_super_cache_generation(root->fs_info->super_copy); - if (btrfs_test_opt(root, SPACE_CACHE) && + if (btrfs_test_opt(root->fs_info, SPACE_CACHE) && btrfs_super_generation(root->fs_info->super_copy) != cache_gen) need_clear = 1; - if (btrfs_test_opt(root, CLEAR_CACHE)) + if (btrfs_test_opt(root->fs_info, CLEAR_CACHE)) need_clear = 1; while (1) { @@ -10163,7 +10181,7 @@ int btrfs_read_block_groups(struct btrfs_root *root) * b) Setting 'dirty flag' makes sure that we flush * the new space cache info onto disk. */ - if (btrfs_test_opt(root, SPACE_CACHE)) + if (btrfs_test_opt(root->fs_info, SPACE_CACHE)) cache->disk_cache_state = BTRFS_DC_CLEAR; } @@ -10305,11 +10323,11 @@ void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans, ret = btrfs_insert_item(trans, extent_root, &key, &item, sizeof(item)); if (ret) - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); ret = btrfs_finish_chunk_alloc(trans, extent_root, key.objectid, key.offset); if (ret) - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); add_block_group_free_space(trans, root->fs_info, block_group); /* already aborted the transaction if it failed. */ next: @@ -10622,7 +10640,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, spin_lock(&block_group->space_info->lock); list_del_init(&block_group->ro_list); - if (btrfs_test_opt(root, ENOSPC_DEBUG)) { + if (btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) { WARN_ON(block_group->space_info->total_bytes < block_group->key.offset); WARN_ON(block_group->space_info->bytes_readonly @@ -10890,7 +10908,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info) spin_unlock(&space_info->lock); /* DISCARD can flip during remount */ - trimming = btrfs_test_opt(root, DISCARD); + trimming = btrfs_test_opt(root->fs_info, DISCARD); /* Implicit trim during transaction commit. */ if (trimming) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 881eb46..44fe66b 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -163,13 +163,13 @@ int __init extent_io_init(void) { extent_state_cache = kmem_cache_create("btrfs_extent_state", sizeof(struct extent_state), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL); + SLAB_MEM_SPREAD, NULL); if (!extent_state_cache) return -ENOMEM; extent_buffer_cache = kmem_cache_create("btrfs_extent_buffer", sizeof(struct extent_buffer), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL); + SLAB_MEM_SPREAD, NULL); if (!extent_buffer_cache) goto free_state_cache; @@ -2750,7 +2750,6 @@ static int merge_bio(struct extent_io_tree *tree, struct page *page, if (tree->ops && tree->ops->merge_bio_hook) ret = tree->ops->merge_bio_hook(page, offset, size, bio, bio_flags); - BUG_ON(ret < 0); return ret; } @@ -2873,6 +2872,7 @@ __get_extent_map(struct inode *inode, struct page *page, size_t pg_offset, * into the tree that are removed when the IO is done (by the end_io * handlers) * XXX JDM: This needs looking at to ensure proper page locking + * return 0 on success, otherwise return error */ static int __do_readpage(struct extent_io_tree *tree, struct page *page, @@ -2894,7 +2894,7 @@ static int __do_readpage(struct extent_io_tree *tree, sector_t sector; struct extent_map *em; struct block_device *bdev; - int ret; + int ret = 0; int nr = 0; size_t pg_offset = 0; size_t iosize; @@ -3075,6 +3075,7 @@ static int __do_readpage(struct extent_io_tree *tree, } else { SetPageError(page); unlock_extent(tree, cur, cur + iosize - 1); + goto out; } cur = cur + iosize; pg_offset += iosize; @@ -3085,7 +3086,7 @@ out: SetPageUptodate(page); unlock_page(page); } - return 0; + return ret; } static inline void __do_contiguous_readpages(struct extent_io_tree *tree, @@ -5224,14 +5225,31 @@ int read_extent_buffer_pages(struct extent_io_tree *tree, atomic_set(&eb->io_pages, num_reads); for (i = start_i; i < num_pages; i++) { page = eb->pages[i]; + if (!PageUptodate(page)) { + if (ret) { + atomic_dec(&eb->io_pages); + unlock_page(page); + continue; + } + ClearPageError(page); err = __extent_read_full_page(tree, page, get_extent, &bio, mirror_num, &bio_flags, REQ_META); - if (err) + if (err) { ret = err; + /* + * We use &bio in above __extent_read_full_page, + * so we ensure that if it returns error, the + * current page fails to add itself to bio and + * it's been unlocked. + * + * We must dec io_pages by ourselves. + */ + atomic_dec(&eb->io_pages); + } } else { unlock_page(page); } diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index e0715fc..26f9ac7 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -13,7 +13,7 @@ int __init extent_map_init(void) { extent_map_cache = kmem_cache_create("btrfs_extent_map", sizeof(struct extent_map), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL); + SLAB_MEM_SPREAD, NULL); if (!extent_map_cache) return -ENOMEM; return 0; diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 62a81ee..d0d571c 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -250,7 +250,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root, offset + root->sectorsize - 1, EXTENT_NODATASUM); } else { - btrfs_info(BTRFS_I(inode)->root->fs_info, + btrfs_info_rl(BTRFS_I(inode)->root->fs_info, "no csum found for inode %llu start %llu", btrfs_ino(inode), offset); } @@ -699,7 +699,7 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans, */ ret = btrfs_split_item(trans, root, path, &key, offset); if (ret && ret != -EAGAIN) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index bcfb4a2..9404121 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -132,7 +132,7 @@ static int __btrfs_add_inode_defrag(struct inode *inode, static inline int __need_auto_defrag(struct btrfs_root *root) { - if (!btrfs_test_opt(root, AUTO_DEFRAG)) + if (!btrfs_test_opt(root->fs_info, AUTO_DEFRAG)) return 0; if (btrfs_fs_closing(root->fs_info)) @@ -950,7 +950,7 @@ delete_extent_item: ret = btrfs_del_items(trans, root, path, del_slot, del_nr); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); break; } @@ -974,7 +974,7 @@ delete_extent_item: path->slots[0] = del_slot; ret = btrfs_del_items(trans, root, path, del_slot, del_nr); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); } leaf = path->nodes[0]; @@ -1190,7 +1190,7 @@ again: goto again; } if (ret < 0) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -1278,7 +1278,7 @@ again: ret = btrfs_del_items(trans, root, path, del_slot, del_nr); if (ret < 0) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } } @@ -2975,7 +2975,7 @@ int btrfs_auto_defrag_init(void) { btrfs_inode_defrag_cachep = kmem_cache_create("btrfs_inode_defrag", sizeof(struct inode_defrag), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, + SLAB_MEM_SPREAD, NULL); if (!btrfs_inode_defrag_cachep) return -ENOMEM; diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 69d270f..d571bd2 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -280,7 +280,7 @@ fail: if (locked) mutex_unlock(&trans->transaction->cache_write_mutex); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } @@ -3026,7 +3026,7 @@ int btrfs_find_space_cluster(struct btrfs_root *root, * For metadata, allow allocates with smaller extents. For * data, keep it dense. */ - if (btrfs_test_opt(root, SSD_SPREAD)) { + if (btrfs_test_opt(root->fs_info, SSD_SPREAD)) { cont1_bytes = min_bytes = bytes + empty_size; } else if (block_group->flags & BTRFS_BLOCK_GROUP_METADATA) { cont1_bytes = bytes; @@ -3470,7 +3470,7 @@ int load_free_ino_cache(struct btrfs_fs_info *fs_info, struct btrfs_root *root) int ret = 0; u64 root_gen = btrfs_root_generation(&root->root_item); - if (!btrfs_test_opt(root, INODE_MAP_CACHE)) + if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) return 0; /* @@ -3514,7 +3514,7 @@ int btrfs_write_out_ino_cache(struct btrfs_root *root, struct btrfs_io_ctl io_ctl; bool release_metadata = true; - if (!btrfs_test_opt(root, INODE_MAP_CACHE)) + if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) return 0; memset(&io_ctl, 0, sizeof(io_ctl)); diff --git a/fs/btrfs/free-space-tree.c b/fs/btrfs/free-space-tree.c index 53dbeaf..87e7e3d 100644 --- a/fs/btrfs/free-space-tree.c +++ b/fs/btrfs/free-space-tree.c @@ -305,7 +305,7 @@ int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans, out: kvfree(bitmap); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } @@ -454,7 +454,7 @@ int convert_free_space_to_extents(struct btrfs_trans_handle *trans, out: kvfree(bitmap); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } @@ -851,7 +851,7 @@ int remove_from_free_space_tree(struct btrfs_trans_handle *trans, out: btrfs_free_path(path); if (ret) - btrfs_abort_transaction(trans, fs_info->free_space_root, ret); + btrfs_abort_transaction(trans, ret); return ret; } @@ -1047,7 +1047,7 @@ int add_to_free_space_tree(struct btrfs_trans_handle *trans, out: btrfs_free_path(path); if (ret) - btrfs_abort_transaction(trans, fs_info->free_space_root, ret); + btrfs_abort_transaction(trans, ret); return ret; } @@ -1193,7 +1193,7 @@ int btrfs_create_free_space_tree(struct btrfs_fs_info *fs_info) abort: fs_info->creating_free_space_tree = 0; - btrfs_abort_transaction(trans, tree_root, ret); + btrfs_abort_transaction(trans, ret); btrfs_end_transaction(trans, tree_root); return ret; } @@ -1280,7 +1280,7 @@ int btrfs_clear_free_space_tree(struct btrfs_fs_info *fs_info) return 0; abort: - btrfs_abort_transaction(trans, tree_root, ret); + btrfs_abort_transaction(trans, ret); btrfs_end_transaction(trans, tree_root); return ret; } @@ -1333,7 +1333,7 @@ out: btrfs_free_path(path); mutex_unlock(&block_group->free_space_lock); if (ret) - btrfs_abort_transaction(trans, fs_info->free_space_root, ret); + btrfs_abort_transaction(trans, ret); return ret; } @@ -1410,7 +1410,7 @@ int remove_block_group_free_space(struct btrfs_trans_handle *trans, out: btrfs_free_path(path); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c index 70107f7..aa6faba 100644 --- a/fs/btrfs/inode-map.c +++ b/fs/btrfs/inode-map.c @@ -38,7 +38,7 @@ static int caching_kthread(void *data) int slot; int ret; - if (!btrfs_test_opt(root, INODE_MAP_CACHE)) + if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) return 0; path = btrfs_alloc_path(); @@ -141,7 +141,7 @@ static void start_caching(struct btrfs_root *root) int ret; u64 objectid; - if (!btrfs_test_opt(root, INODE_MAP_CACHE)) + if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) return; spin_lock(&root->ino_cache_lock); @@ -185,7 +185,7 @@ static void start_caching(struct btrfs_root *root) int btrfs_find_free_ino(struct btrfs_root *root, u64 *objectid) { - if (!btrfs_test_opt(root, INODE_MAP_CACHE)) + if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) return btrfs_find_free_objectid(root, objectid); again: @@ -211,7 +211,7 @@ void btrfs_return_ino(struct btrfs_root *root, u64 objectid) { struct btrfs_free_space_ctl *pinned = root->free_ino_pinned; - if (!btrfs_test_opt(root, INODE_MAP_CACHE)) + if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) return; again: if (root->ino_cache_state == BTRFS_CACHE_FINISHED) { @@ -251,7 +251,7 @@ void btrfs_unpin_free_ino(struct btrfs_root *root) struct rb_node *n; u64 count; - if (!btrfs_test_opt(root, INODE_MAP_CACHE)) + if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) return; while (1) { @@ -412,7 +412,7 @@ int btrfs_save_ino_cache(struct btrfs_root *root, if (btrfs_root_refs(&root->root_item) == 0) return 0; - if (!btrfs_test_opt(root, INODE_MAP_CACHE)) + if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) return 0; path = btrfs_alloc_path(); @@ -458,7 +458,7 @@ again: BTRFS_I(inode)->generation = 0; ret = btrfs_update_inode(trans, root, inode); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_put; } @@ -466,7 +466,7 @@ again: ret = btrfs_truncate_free_space_cache(root, trans, NULL, inode); if (ret) { if (ret != -ENOSPC) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_put; } } diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 8078077..b0f421f 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -60,6 +60,7 @@ #include "hash.h" #include "props.h" #include "qgroup.h" +#include "dedupe.h" struct btrfs_iget_args { struct btrfs_key *location; @@ -105,8 +106,9 @@ static int btrfs_truncate(struct inode *inode); static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent); static noinline int cow_file_range(struct inode *inode, struct page *locked_page, - u64 start, u64 end, int *page_started, - unsigned long *nr_written, int unlock); + u64 start, u64 end, u64 delalloc_end, + int *page_started, unsigned long *nr_written, + int unlock, struct btrfs_dedupe_hash *hash); static struct extent_map *create_pinned_em(struct inode *inode, u64 start, u64 len, u64 orig_start, u64 block_start, u64 block_len, @@ -294,7 +296,7 @@ static noinline int cow_file_range_inline(struct btrfs_root *root, start, aligned_end, NULL, 1, 1, extent_item_size, &extent_inserted); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -305,7 +307,7 @@ static noinline int cow_file_range_inline(struct btrfs_root *root, inline_len, compressed_size, compress_type, compressed_pages); if (ret && ret != -ENOSPC) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } else if (ret == -ENOSPC) { ret = 1; @@ -374,12 +376,12 @@ static inline int inode_need_compress(struct inode *inode) struct btrfs_root *root = BTRFS_I(inode)->root; /* force compress */ - if (btrfs_test_opt(root, FORCE_COMPRESS)) + if (btrfs_test_opt(root->fs_info, FORCE_COMPRESS)) return 1; /* bad compression ratios */ if (BTRFS_I(inode)->flags & BTRFS_INODE_NOCOMPRESS) return 0; - if (btrfs_test_opt(root, COMPRESS) || + if (btrfs_test_opt(root->fs_info, COMPRESS) || BTRFS_I(inode)->flags & BTRFS_INODE_COMPRESS || BTRFS_I(inode)->force_compress) return 1; @@ -585,9 +587,27 @@ cont: will_compress = 0; } else { num_bytes = total_in; + *num_added += 1; + + /* + * The async work queues will take care of doing actual + * allocation on disk for these compressed pages, and + * will submit them to the elevator. + */ + add_async_extent(async_cow, start, num_bytes, + total_compressed, pages, nr_pages_ret, + compress_type); + + if (start + num_bytes < end) { + start += num_bytes; + pages = NULL; + cond_resched(); + goto again; + } + return; } } - if (!will_compress && pages) { + if (pages) { /* * the compression code ran but failed to make things smaller, * free any pages it allocated and our page pointer array @@ -602,48 +622,28 @@ cont: nr_pages_ret = 0; /* flag the file so we don't compress in the future */ - if (!btrfs_test_opt(root, FORCE_COMPRESS) && + if (!btrfs_test_opt(root->fs_info, FORCE_COMPRESS) && !(BTRFS_I(inode)->force_compress)) { BTRFS_I(inode)->flags |= BTRFS_INODE_NOCOMPRESS; } } - if (will_compress) { - *num_added += 1; - - /* the async work queues will take care of doing actual - * allocation on disk for these compressed pages, - * and will submit them to the elevator. - */ - add_async_extent(async_cow, start, num_bytes, - total_compressed, pages, nr_pages_ret, - compress_type); - - if (start + num_bytes < end) { - start += num_bytes; - pages = NULL; - cond_resched(); - goto again; - } - } else { cleanup_and_bail_uncompressed: - /* - * No compression, but we still need to write the pages in - * the file we've been given so far. redirty the locked - * page if it corresponds to our extent and set things up - * for the async work queue to run cow_file_range to do - * the normal delalloc dance - */ - if (page_offset(locked_page) >= start && - page_offset(locked_page) <= end) { - __set_page_dirty_nobuffers(locked_page); - /* unlocked later on in the async handlers */ - } - if (redirty) - extent_range_redirty_for_io(inode, start, end); - add_async_extent(async_cow, start, end - start + 1, - 0, NULL, 0, BTRFS_COMPRESS_NONE); - *num_added += 1; - } + /* + * No compression, but we still need to write the pages in the file + * we've been given so far. redirty the locked page if it corresponds + * to our extent and set things up for the async work queue to run + * cow_file_range to do the normal delalloc dance. + */ + if (page_offset(locked_page) >= start && + page_offset(locked_page) <= end) + __set_page_dirty_nobuffers(locked_page); + /* unlocked later on in the async handlers */ + + if (redirty) + extent_range_redirty_for_io(inode, start, end); + add_async_extent(async_cow, start, end - start + 1, 0, NULL, 0, + BTRFS_COMPRESS_NONE); + *num_added += 1; return; @@ -712,7 +712,10 @@ retry: async_extent->start, async_extent->start + async_extent->ram_size - 1, - &page_started, &nr_written, 0); + async_extent->start + + async_extent->ram_size - 1, + &page_started, &nr_written, 0, + NULL); /* JDM XXX */ @@ -925,9 +928,9 @@ static u64 get_extent_allocation_hint(struct inode *inode, u64 start, */ static noinline int cow_file_range(struct inode *inode, struct page *locked_page, - u64 start, u64 end, int *page_started, - unsigned long *nr_written, - int unlock) + u64 start, u64 end, u64 delalloc_end, + int *page_started, unsigned long *nr_written, + int unlock, struct btrfs_dedupe_hash *hash) { struct btrfs_root *root = BTRFS_I(inode)->root; u64 alloc_hint = 0; @@ -1156,7 +1159,7 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page, async_cow->start = start; if (BTRFS_I(inode)->flags & BTRFS_INODE_NOCOMPRESS && - !btrfs_test_opt(root, FORCE_COMPRESS)) + !btrfs_test_opt(root->fs_info, FORCE_COMPRESS)) cur_end = end; else cur_end = min(end, start + SZ_512K - 1); @@ -1418,7 +1421,8 @@ out_check: if (cow_start != (u64)-1) { ret = cow_file_range(inode, locked_page, cow_start, found_key.offset - 1, - page_started, nr_written, 1); + end, page_started, nr_written, 1, + NULL); if (ret) { if (!nolock && nocow) btrfs_end_write_no_snapshoting(root); @@ -1501,8 +1505,8 @@ out_check: } if (cow_start != (u64)-1) { - ret = cow_file_range(inode, locked_page, cow_start, end, - page_started, nr_written, 1); + ret = cow_file_range(inode, locked_page, cow_start, end, end, + page_started, nr_written, 1, NULL); if (ret) goto error; } @@ -1561,8 +1565,8 @@ static int run_delalloc_range(struct inode *inode, struct page *locked_page, ret = run_delalloc_nocow(inode, locked_page, start, end, page_started, 0, nr_written); } else if (!inode_need_compress(inode)) { - ret = cow_file_range(inode, locked_page, start, end, - page_started, nr_written, 1); + ret = cow_file_range(inode, locked_page, start, end, end, + page_started, nr_written, 1, NULL); } else { set_bit(BTRFS_INODE_HAS_ASYNC_EXTENT, &BTRFS_I(inode)->runtime_flags); @@ -1740,7 +1744,7 @@ static void btrfs_set_bit_hook(struct inode *inode, } /* For sanity tests */ - if (btrfs_test_is_dummy_root(root)) + if (btrfs_is_testing(root->fs_info)) return; __percpu_counter_add(&root->fs_info->delalloc_bytes, len, @@ -1799,7 +1803,7 @@ static void btrfs_clear_bit_hook(struct inode *inode, btrfs_delalloc_release_metadata(inode, len); /* For sanity tests. */ - if (btrfs_test_is_dummy_root(root)) + if (btrfs_is_testing(root->fs_info)) return; if (root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID @@ -1822,6 +1826,10 @@ static void btrfs_clear_bit_hook(struct inode *inode, /* * extent_io.c merge_bio_hook, this must check the chunk tree to make sure * we don't create bios that span stripes or chunks + * + * return 1 if page cannot be merged to bio + * return 0 if page can be merged to bio + * return error otherwise */ int btrfs_merge_bio_hook(struct page *page, unsigned long offset, size_t size, struct bio *bio, @@ -1840,8 +1848,8 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset, map_length = length; ret = btrfs_map_block(root->fs_info, bio_op(bio), logical, &map_length, NULL, 0); - /* Will always return 0 with map_multi == NULL */ - BUG_ON(ret < 0); + if (ret < 0) + return ret; if (map_length < length + size) return 1; return 0; @@ -2594,7 +2602,7 @@ again: ret = btrfs_insert_empty_item(trans, root, path, &key, sizeof(*extent)); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_free_path; } @@ -2621,7 +2629,7 @@ again: backref->root_id, backref->inum, new->file_pos); /* start - extent_offset */ if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_free_path; } @@ -2890,7 +2898,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent) trans->block_rsv = &root->fs_info->delalloc_block_rsv; ret = btrfs_update_inode_fallback(trans, root, inode); if (ret) /* -ENOMEM or corruption */ - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -2950,7 +2958,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent) ordered_extent->file_offset, ordered_extent->len, trans->transid); if (ret < 0) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_unlock; } @@ -2960,7 +2968,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent) btrfs_ordered_update_i_size(inode, 0, ordered_extent); ret = btrfs_update_inode_fallback(trans, root, inode); if (ret) { /* -ENOMEM or corruption */ - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_unlock; } ret = 0; @@ -3204,7 +3212,7 @@ void btrfs_orphan_commit_root(struct btrfs_trans_handle *trans, ret = btrfs_del_orphan_item(trans, root->fs_info->tree_root, root->root_key.objectid); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); else clear_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state); @@ -3295,7 +3303,7 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode) if (ret != -EEXIST) { clear_bit(BTRFS_INODE_HAS_ORPHAN_ITEM, &BTRFS_I(inode)->runtime_flags); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } } @@ -3307,7 +3315,7 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode) ret = btrfs_insert_orphan_item(trans, root->fs_info->tree_root, root->root_key.objectid); if (ret && ret != -EEXIST) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } } @@ -4006,20 +4014,20 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans, btrfs_info(root->fs_info, "failed to delete reference to %.*s, inode %llu parent %llu", name_len, name, ino, dir_ino); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto err; } skip_backref: ret = btrfs_delete_delayed_dir_index(trans, root, dir, index); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto err; } ret = btrfs_del_inode_ref_in_log(trans, root, name, name_len, inode, dir_ino); if (ret != 0 && ret != -ENOENT) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto err; } @@ -4028,7 +4036,7 @@ skip_backref: if (ret == -ENOENT) ret = 0; else if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); err: btrfs_free_path(path); if (ret) @@ -4142,7 +4150,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans, WARN_ON(key.type != BTRFS_ROOT_ITEM_KEY || key.objectid != objectid); ret = btrfs_delete_one_dir_name(trans, root, path, di); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } btrfs_release_path(path); @@ -4152,7 +4160,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans, dir_ino, &index, name, name_len); if (ret < 0) { if (ret != -ENOENT) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } di = btrfs_search_dir_index_item(root, path, dir_ino, @@ -4162,7 +4170,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans, ret = -ENOENT; else ret = PTR_ERR(di); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -4175,7 +4183,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans, ret = btrfs_delete_delayed_dir_index(trans, root, dir, index); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -4184,7 +4192,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans, dir->i_mtime = dir->i_ctime = current_fs_time(dir->i_sb); ret = btrfs_update_inode_fallback(trans, root, dir); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); out: btrfs_free_path(path); return ret; @@ -4505,7 +4513,6 @@ search_again: pending_del_nr); if (err) { btrfs_abort_transaction(trans, - root, err); goto error; } @@ -4517,8 +4524,7 @@ search_again: item_end, new_size); if (err) { - btrfs_abort_transaction(trans, - root, err); + btrfs_abort_transaction(trans, err); goto error; } } else if (test_bit(BTRFS_ROOT_REF_COWS, @@ -4582,8 +4588,7 @@ delete: pending_del_slot, pending_del_nr); if (ret) { - btrfs_abort_transaction(trans, - root, ret); + btrfs_abort_transaction(trans, ret); goto error; } pending_del_nr = 0; @@ -4616,7 +4621,7 @@ out: ret = btrfs_del_items(trans, root, path, pending_del_slot, pending_del_nr); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); } error: if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID) @@ -4785,7 +4790,7 @@ static int maybe_insert_hole(struct btrfs_root *root, struct inode *inode, ret = btrfs_drop_extents(trans, root, inode, offset, offset + len, 1); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); btrfs_end_transaction(trans, root); return ret; } @@ -4793,7 +4798,7 @@ static int maybe_insert_hole(struct btrfs_root *root, struct inode *inode, ret = btrfs_insert_file_extent(trans, root, btrfs_ino(inode), offset, 0, 0, len, 0, len, 0, 0, 0); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); else btrfs_update_inode(trans, root, inode); btrfs_end_transaction(trans, root); @@ -5020,7 +5025,7 @@ static int btrfs_setsize(struct inode *inode, struct iattr *attr) i_size_write(inode, BTRFS_I(inode)->disk_i_size); err = btrfs_orphan_del(trans, inode); if (err) - btrfs_abort_transaction(trans, root, err); + btrfs_abort_transaction(trans, err); btrfs_end_transaction(trans, root); } } @@ -5158,11 +5163,18 @@ void btrfs_evict_inode(struct inode *inode) struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_block_rsv *rsv, *global_rsv; int steal_from_global = 0; - u64 min_size = btrfs_calc_trunc_metadata_size(root, 1); + u64 min_size; int ret; trace_btrfs_inode_evict(inode); + if (!root) { + kmem_cache_free(btrfs_inode_cachep, BTRFS_I(inode)); + return; + } + + min_size = btrfs_calc_trunc_metadata_size(root, 1); + evict_inode_truncate_pages(inode); if (inode->i_nlink && @@ -6239,9 +6251,9 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans, btrfs_inherit_iflags(inode, dir); if (S_ISREG(mode)) { - if (btrfs_test_opt(root, NODATASUM)) + if (btrfs_test_opt(root->fs_info, NODATASUM)) BTRFS_I(inode)->flags |= BTRFS_INODE_NODATASUM; - if (btrfs_test_opt(root, NODATACOW)) + if (btrfs_test_opt(root->fs_info, NODATACOW)) BTRFS_I(inode)->flags |= BTRFS_INODE_NODATACOW | BTRFS_INODE_NODATASUM; } @@ -6319,7 +6331,7 @@ int btrfs_add_link(struct btrfs_trans_handle *trans, if (ret == -EEXIST || ret == -EOVERFLOW) goto fail_dir_item; else if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; } @@ -6330,7 +6342,7 @@ int btrfs_add_link(struct btrfs_trans_handle *trans, current_fs_time(parent_inode->i_sb); ret = btrfs_update_inode(trans, root, parent_inode); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); return ret; fail_dir_item: @@ -9385,25 +9397,25 @@ int btrfs_init_cachep(void) btrfs_trans_handle_cachep = kmem_cache_create("btrfs_trans_handle", sizeof(struct btrfs_trans_handle), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL); + SLAB_TEMPORARY | SLAB_MEM_SPREAD, NULL); if (!btrfs_trans_handle_cachep) goto fail; btrfs_transaction_cachep = kmem_cache_create("btrfs_transaction", sizeof(struct btrfs_transaction), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL); + SLAB_TEMPORARY | SLAB_MEM_SPREAD, NULL); if (!btrfs_transaction_cachep) goto fail; btrfs_path_cachep = kmem_cache_create("btrfs_path", sizeof(struct btrfs_path), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL); + SLAB_MEM_SPREAD, NULL); if (!btrfs_path_cachep) goto fail; btrfs_free_space_cachep = kmem_cache_create("btrfs_free_space", sizeof(struct btrfs_free_space), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, NULL); + SLAB_MEM_SPREAD, NULL); if (!btrfs_free_space_cachep) goto fail; @@ -9553,7 +9565,7 @@ static int btrfs_rename_exchange(struct inode *old_dir, ret = btrfs_update_inode(trans, root, old_inode); } if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_fail; } @@ -9573,7 +9585,7 @@ static int btrfs_rename_exchange(struct inode *old_dir, ret = btrfs_update_inode(trans, dest, new_inode); } if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_fail; } @@ -9581,7 +9593,7 @@ static int btrfs_rename_exchange(struct inode *old_dir, new_dentry->d_name.name, new_dentry->d_name.len, 0, old_idx); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_fail; } @@ -9589,7 +9601,7 @@ static int btrfs_rename_exchange(struct inode *old_dir, old_dentry->d_name.name, old_dentry->d_name.len, 0, new_idx); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_fail; } @@ -9828,7 +9840,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, ret = btrfs_update_inode(trans, root, old_inode); } if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_fail; } @@ -9852,7 +9864,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, if (!ret && new_inode->i_nlink == 0) ret = btrfs_orphan_add(trans, d_inode(new_dentry)); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_fail; } } @@ -9861,7 +9873,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, new_dentry->d_name.name, new_dentry->d_name.len, 0, index); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_fail; } @@ -9881,7 +9893,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, old_dentry); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_fail; } } @@ -10307,7 +10319,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode, if (ret) { btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 0); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); if (own_trans) btrfs_end_transaction(trans, root); break; @@ -10367,7 +10379,7 @@ next: ret = btrfs_update_inode(trans, root, inode); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); if (own_trans) btrfs_end_transaction(trans, root); break; diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 0517356..14ed1e9 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -561,7 +561,7 @@ static noinline int create_subvol(struct inode *dir, new_root = btrfs_read_fs_root_no_name(root->fs_info, &key); if (IS_ERR(new_root)) { ret = PTR_ERR(new_root); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } @@ -570,7 +570,7 @@ static noinline int create_subvol(struct inode *dir, ret = btrfs_create_subvol_root(trans, new_root, root, new_dirid); if (ret) { /* We potentially lose an unused inode item here */ - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } @@ -583,7 +583,7 @@ static noinline int create_subvol(struct inode *dir, */ ret = btrfs_set_inode_index(dir, &index); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } @@ -591,7 +591,7 @@ static noinline int create_subvol(struct inode *dir, name, namelen, dir, &key, BTRFS_FT_DIR, index); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } @@ -608,7 +608,7 @@ static noinline int create_subvol(struct inode *dir, root_item->uuid, BTRFS_UUID_KEY_SUBVOL, objectid); if (ret) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); fail: kfree(root_item); @@ -1948,8 +1948,7 @@ static noinline int key_in_sk(struct btrfs_key *key, return 1; } -static noinline int copy_to_sk(struct btrfs_root *root, - struct btrfs_path *path, +static noinline int copy_to_sk(struct btrfs_path *path, struct btrfs_key *key, struct btrfs_ioctl_search_key *sk, size_t *buf_size, @@ -2120,7 +2119,7 @@ static noinline int search_ioctl(struct inode *inode, ret = 0; goto err; } - ret = copy_to_sk(root, path, &key, sk, buf_size, ubuf, + ret = copy_to_sk(path, &key, sk, buf_size, ubuf, &sk_offset, &num_found); btrfs_release_path(path); if (ret) @@ -2406,7 +2405,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, * rmdir(2). */ err = -EPERM; - if (!btrfs_test_opt(root, USER_SUBVOL_RM_ALLOWED)) + if (!btrfs_test_opt(root->fs_info, USER_SUBVOL_RM_ALLOWED)) goto out_dput; /* @@ -2489,7 +2488,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, dentry->d_name.len); if (ret) { err = ret; - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_end_trans; } @@ -2505,7 +2504,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, root->fs_info->tree_root, dest->root_key.objectid); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); err = ret; goto out_end_trans; } @@ -2515,7 +2514,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, dest->root_item.uuid, BTRFS_UUID_KEY_SUBVOL, dest->root_key.objectid); if (ret && ret != -ENOENT) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); err = ret; goto out_end_trans; } @@ -2525,7 +2524,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, BTRFS_UUID_KEY_RECEIVED_SUBVOL, dest->root_key.objectid); if (ret && ret != -ENOENT) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); err = ret; goto out_end_trans; } @@ -3292,7 +3291,7 @@ static int clone_finish_inode_update(struct btrfs_trans_handle *trans, ret = btrfs_update_inode(trans, root, inode); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); btrfs_end_transaction(trans, root); goto out; } @@ -3694,7 +3693,7 @@ process_slot: if (ret) { if (ret != -EOPNOTSUPP) btrfs_abort_transaction(trans, - root, ret); + ret); btrfs_end_transaction(trans, root); goto out; } @@ -3702,8 +3701,7 @@ process_slot: ret = btrfs_insert_empty_item(trans, root, path, &new_key, size); if (ret) { - btrfs_abort_transaction(trans, root, - ret); + btrfs_abort_transaction(trans, ret); btrfs_end_transaction(trans, root); goto out; } @@ -3735,7 +3733,6 @@ process_slot: new_key.offset - datao); if (ret) { btrfs_abort_transaction(trans, - root, ret); btrfs_end_transaction(trans, root); @@ -3772,7 +3769,6 @@ process_slot: if (ret) { if (ret != -EOPNOTSUPP) btrfs_abort_transaction(trans, - root, ret); btrfs_end_transaction(trans, root); goto out; @@ -3828,7 +3824,7 @@ process_slot: last_dest_end, destoff + len, 1); if (ret) { if (ret != -EOPNOTSUPP) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); btrfs_end_transaction(trans, root); goto out; } @@ -5164,13 +5160,13 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file, BTRFS_UUID_KEY_RECEIVED_SUBVOL, root->root_key.objectid); if (ret < 0 && ret != -EEXIST) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } } ret = btrfs_commit_transaction(trans, root); if (ret < 0) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index aca8264..3b78d38 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -1122,7 +1122,7 @@ int __init ordered_data_init(void) { btrfs_ordered_extent_cache = kmem_cache_create("btrfs_ordered_extent", sizeof(struct btrfs_ordered_extent), 0, - SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD, + SLAB_MEM_SPREAD, NULL); if (!btrfs_ordered_extent_cache) return -ENOMEM; diff --git a/fs/btrfs/props.c b/fs/btrfs/props.c index 3699212..cf0b444 100644 --- a/fs/btrfs/props.c +++ b/fs/btrfs/props.c @@ -350,6 +350,7 @@ int btrfs_subvol_inherit_props(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_root *parent_root) { + struct super_block *sb = root->fs_info->sb; struct btrfs_key key; struct inode *parent_inode, *child_inode; int ret; @@ -358,12 +359,11 @@ int btrfs_subvol_inherit_props(struct btrfs_trans_handle *trans, key.type = BTRFS_INODE_ITEM_KEY; key.offset = 0; - parent_inode = btrfs_iget(parent_root->fs_info->sb, &key, - parent_root, NULL); + parent_inode = btrfs_iget(sb, &key, parent_root, NULL); if (IS_ERR(parent_inode)) return PTR_ERR(parent_inode); - child_inode = btrfs_iget(root->fs_info->sb, &key, root, NULL); + child_inode = btrfs_iget(sb, &key, root, NULL); if (IS_ERR(child_inode)) { iput(parent_inode); return PTR_ERR(child_inode); diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 9d4c05b..93ee1c1 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -571,7 +571,7 @@ static int add_qgroup_item(struct btrfs_trans_handle *trans, struct extent_buffer *leaf; struct btrfs_key key; - if (btrfs_test_is_dummy_root(quota_root)) + if (btrfs_is_testing(quota_root->fs_info)) return 0; path = btrfs_alloc_path(); @@ -728,7 +728,7 @@ static int update_qgroup_info_item(struct btrfs_trans_handle *trans, int ret; int slot; - if (btrfs_test_is_dummy_root(root)) + if (btrfs_is_testing(root->fs_info)) return 0; key.objectid = 0; @@ -1453,9 +1453,10 @@ int btrfs_qgroup_prepare_account_extents(struct btrfs_trans_handle *trans, return ret; } -struct btrfs_qgroup_extent_record -*btrfs_qgroup_insert_dirty_extent(struct btrfs_delayed_ref_root *delayed_refs, - struct btrfs_qgroup_extent_record *record) +struct btrfs_qgroup_extent_record * +btrfs_qgroup_insert_dirty_extent(struct btrfs_fs_info *fs_info, + struct btrfs_delayed_ref_root *delayed_refs, + struct btrfs_qgroup_extent_record *record) { struct rb_node **p = &delayed_refs->dirty_extent_root.rb_node; struct rb_node *parent_node = NULL; @@ -1463,7 +1464,7 @@ struct btrfs_qgroup_extent_record u64 bytenr = record->bytenr; assert_spin_locked(&delayed_refs->lock); - trace_btrfs_qgroup_insert_dirty_extent(record); + trace_btrfs_qgroup_insert_dirty_extent(fs_info, record); while (*p) { parent_node = *p; @@ -1595,8 +1596,8 @@ static int qgroup_update_counters(struct btrfs_fs_info *fs_info, cur_old_count = btrfs_qgroup_get_old_refcnt(qg, seq); cur_new_count = btrfs_qgroup_get_new_refcnt(qg, seq); - trace_qgroup_update_counters(qg->qgroupid, cur_old_count, - cur_new_count); + trace_qgroup_update_counters(fs_info, qg->qgroupid, + cur_old_count, cur_new_count); /* Rfer update part */ if (cur_old_count == 0 && cur_new_count > 0) { @@ -1687,8 +1688,8 @@ btrfs_qgroup_account_extent(struct btrfs_trans_handle *trans, goto out_free; BUG_ON(!fs_info->quota_root); - trace_btrfs_qgroup_account_extent(bytenr, num_bytes, nr_old_roots, - nr_new_roots); + trace_btrfs_qgroup_account_extent(fs_info, bytenr, num_bytes, + nr_old_roots, nr_new_roots); qgroups = ulist_alloc(GFP_NOFS); if (!qgroups) { @@ -1759,7 +1760,7 @@ int btrfs_qgroup_account_extents(struct btrfs_trans_handle *trans, record = rb_entry(node, struct btrfs_qgroup_extent_record, node); - trace_btrfs_qgroup_account_extents(record); + trace_btrfs_qgroup_account_extents(fs_info, record); if (!ret) { /* @@ -2195,7 +2196,7 @@ void assert_qgroups_uptodate(struct btrfs_trans_handle *trans) { if (list_empty(&trans->qgroup_ref_list) && !trans->delayed_ref_elem.seq) return; - btrfs_err(trans->root->fs_info, + btrfs_err(trans->fs_info, "qgroups not uptodate in trans handle %p: list is%s empty, " "seq is %#x.%x", trans, list_empty(&trans->qgroup_ref_list) ? "" : " not", diff --git a/fs/btrfs/qgroup.h b/fs/btrfs/qgroup.h index ecb2c14..710887c 100644 --- a/fs/btrfs/qgroup.h +++ b/fs/btrfs/qgroup.h @@ -63,9 +63,10 @@ void btrfs_free_qgroup_config(struct btrfs_fs_info *fs_info); struct btrfs_delayed_extent_op; int btrfs_qgroup_prepare_account_extents(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info); -struct btrfs_qgroup_extent_record -*btrfs_qgroup_insert_dirty_extent(struct btrfs_delayed_ref_root *delayed_refs, - struct btrfs_qgroup_extent_record *record); +struct btrfs_qgroup_extent_record * +btrfs_qgroup_insert_dirty_extent(struct btrfs_fs_info *fs_info, + struct btrfs_delayed_ref_root *delayed_refs, + struct btrfs_qgroup_extent_record *record); int btrfs_qgroup_account_extent(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info, @@ -88,7 +89,7 @@ static inline void btrfs_qgroup_free_delayed_ref(struct btrfs_fs_info *fs_info, u64 ref_root, u64 num_bytes) { btrfs_qgroup_free_refroot(fs_info, ref_root, num_bytes); - trace_btrfs_qgroup_free_delayed_ref(ref_root, num_bytes); + trace_btrfs_qgroup_free_delayed_ref(fs_info, ref_root, num_bytes); } void assert_qgroups_uptodate(struct btrfs_trans_handle *trans); diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index fc067b0..b26a5ae 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -235,12 +235,12 @@ static void backref_cache_cleanup(struct backref_cache *cache) cache->last_trans = 0; for (i = 0; i < BTRFS_MAX_LEVEL; i++) - BUG_ON(!list_empty(&cache->pending[i])); - BUG_ON(!list_empty(&cache->changed)); - BUG_ON(!list_empty(&cache->detached)); - BUG_ON(!RB_EMPTY_ROOT(&cache->rb_root)); - BUG_ON(cache->nr_nodes); - BUG_ON(cache->nr_edges); + ASSERT(list_empty(&cache->pending[i])); + ASSERT(list_empty(&cache->changed)); + ASSERT(list_empty(&cache->detached)); + ASSERT(RB_EMPTY_ROOT(&cache->rb_root)); + ASSERT(!cache->nr_nodes); + ASSERT(!cache->nr_edges); } static struct backref_node *alloc_backref_node(struct backref_cache *cache) @@ -1171,8 +1171,12 @@ out: lower = list_entry(useless.next, struct backref_node, list); list_del_init(&lower->list); + if (lower == node) + node = NULL; free_backref_node(cache, lower); } + + free_backref_node(cache, node); return ERR_PTR(err); } ASSERT(!node || !node->detached); @@ -1719,7 +1723,7 @@ int replace_file_extents(struct btrfs_trans_handle *trans, btrfs_header_owner(leaf), key.objectid, key.offset); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); break; } @@ -1727,7 +1731,7 @@ int replace_file_extents(struct btrfs_trans_handle *trans, parent, btrfs_header_owner(leaf), key.objectid, key.offset); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); break; } } diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c index f1c3086..7fd7e18 100644 --- a/fs/btrfs/root-tree.c +++ b/fs/btrfs/root-tree.c @@ -150,7 +150,7 @@ int btrfs_update_root(struct btrfs_trans_handle *trans, struct btrfs_root ret = btrfs_search_slot(trans, root, key, path, 0, 1); if (ret < 0) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -176,20 +176,20 @@ int btrfs_update_root(struct btrfs_trans_handle *trans, struct btrfs_root ret = btrfs_search_slot(trans, root, key, path, -1, 1); if (ret < 0) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } ret = btrfs_del_item(trans, root, path); if (ret < 0) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } btrfs_release_path(path); ret = btrfs_insert_empty_item(trans, root, path, key, sizeof(*item)); if (ret < 0) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } l = path->nodes[0]; @@ -448,7 +448,7 @@ again: ret = btrfs_insert_empty_item(trans, tree_root, path, &key, sizeof(*ref) + name_len); if (ret) { - btrfs_abort_transaction(trans, tree_root, ret); + btrfs_abort_transaction(trans, ret); btrfs_free_path(path); return ret; } diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index e08b6bc..1d195d2 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -3785,27 +3785,27 @@ static noinline_for_stack int scrub_workers_get(struct btrfs_fs_info *fs_info, if (fs_info->scrub_workers_refcnt == 0) { if (is_dev_replace) fs_info->scrub_workers = - btrfs_alloc_workqueue("scrub", flags, + btrfs_alloc_workqueue(fs_info, "scrub", flags, 1, 4); else fs_info->scrub_workers = - btrfs_alloc_workqueue("scrub", flags, + btrfs_alloc_workqueue(fs_info, "scrub", flags, max_active, 4); if (!fs_info->scrub_workers) goto fail_scrub_workers; fs_info->scrub_wr_completion_workers = - btrfs_alloc_workqueue("scrubwrc", flags, + btrfs_alloc_workqueue(fs_info, "scrubwrc", flags, max_active, 2); if (!fs_info->scrub_wr_completion_workers) goto fail_scrub_wr_completion_workers; fs_info->scrub_nocow_workers = - btrfs_alloc_workqueue("scrubnc", flags, 1, 0); + btrfs_alloc_workqueue(fs_info, "scrubnc", flags, 1, 0); if (!fs_info->scrub_nocow_workers) goto fail_scrub_nocow_workers; fs_info->scrub_parity_workers = - btrfs_alloc_workqueue("scrubparity", flags, + btrfs_alloc_workqueue(fs_info, "scrubparity", flags, max_active, 2); if (!fs_info->scrub_parity_workers) goto fail_scrub_parity_workers; @@ -3860,7 +3860,7 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start, if (fs_info->chunk_root->sectorsize != PAGE_SIZE) { /* not supported for data w/o checksums */ - btrfs_err(fs_info, + btrfs_err_rl(fs_info, "scrub: size assumption sectorsize != PAGE_SIZE " "(%d != %lu) fails", fs_info->chunk_root->sectorsize, PAGE_SIZE); diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 60e7179..864ce33 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -184,6 +184,22 @@ static const char * const logtypes[] = { "debug", }; + +/* + * Use one ratelimit state per log level so that a flood of less important + * messages doesn't cause more important ones to be dropped. + */ +static struct ratelimit_state printk_limits[] = { + RATELIMIT_STATE_INIT(printk_limits[0], DEFAULT_RATELIMIT_INTERVAL, 100), + RATELIMIT_STATE_INIT(printk_limits[1], DEFAULT_RATELIMIT_INTERVAL, 100), + RATELIMIT_STATE_INIT(printk_limits[2], DEFAULT_RATELIMIT_INTERVAL, 100), + RATELIMIT_STATE_INIT(printk_limits[3], DEFAULT_RATELIMIT_INTERVAL, 100), + RATELIMIT_STATE_INIT(printk_limits[4], DEFAULT_RATELIMIT_INTERVAL, 100), + RATELIMIT_STATE_INIT(printk_limits[5], DEFAULT_RATELIMIT_INTERVAL, 100), + RATELIMIT_STATE_INIT(printk_limits[6], DEFAULT_RATELIMIT_INTERVAL, 100), + RATELIMIT_STATE_INIT(printk_limits[7], DEFAULT_RATELIMIT_INTERVAL, 100), +}; + void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...) { struct super_block *sb = fs_info->sb; @@ -192,6 +208,7 @@ void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...) va_list args; const char *type = logtypes[4]; int kern_level; + struct ratelimit_state *ratelimit; va_start(args, fmt); @@ -202,13 +219,18 @@ void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...) lvl[size] = '\0'; fmt += size; type = logtypes[kern_level - '0']; - } else + ratelimit = &printk_limits[kern_level - '0']; + } else { *lvl = '\0'; + /* Default to debug output */ + ratelimit = &printk_limits[7]; + } vaf.fmt = fmt; vaf.va = &args; - printk("%sBTRFS %s (device %s): %pV\n", lvl, type, sb->s_id, &vaf); + if (__ratelimit(ratelimit)) + printk("%sBTRFS %s (device %s): %pV\n", lvl, type, sb->s_id, &vaf); va_end(args); } @@ -229,9 +251,11 @@ void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...) */ __cold void __btrfs_abort_transaction(struct btrfs_trans_handle *trans, - struct btrfs_root *root, const char *function, + const char *function, unsigned int line, int errno) { + struct btrfs_fs_info *fs_info = trans->fs_info; + trans->aborted = errno; /* Nothing used. The other threads that have joined this * transaction may be able to continue. */ @@ -239,16 +263,16 @@ void __btrfs_abort_transaction(struct btrfs_trans_handle *trans, const char *errstr; errstr = btrfs_decode_error(errno); - btrfs_warn(root->fs_info, + btrfs_warn(fs_info, "%s:%d: Aborting unused transaction(%s).", function, line, errstr); return; } ACCESS_ONCE(trans->transaction->aborted) = errno; /* Wake up anybody who may be waiting on this transaction */ - wake_up(&root->fs_info->transaction_wait); - wake_up(&root->fs_info->transaction_blocked_wait); - __btrfs_handle_fs_error(root->fs_info, function, line, errno, NULL); + wake_up(&fs_info->transaction_wait); + wake_up(&fs_info->transaction_blocked_wait); + __btrfs_handle_fs_error(fs_info, function, line, errno, NULL); } /* * __btrfs_panic decodes unexpected, fatal errors from the caller, @@ -432,12 +456,12 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, */ break; case Opt_nodatasum: - btrfs_set_and_info(root, NODATASUM, + btrfs_set_and_info(info, NODATASUM, "setting nodatasum"); break; case Opt_datasum: - if (btrfs_test_opt(root, NODATASUM)) { - if (btrfs_test_opt(root, NODATACOW)) + if (btrfs_test_opt(info, NODATASUM)) { + if (btrfs_test_opt(info, NODATACOW)) btrfs_info(root->fs_info, "setting datasum, datacow enabled"); else btrfs_info(root->fs_info, "setting datasum"); @@ -446,9 +470,9 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, btrfs_clear_opt(info->mount_opt, NODATASUM); break; case Opt_nodatacow: - if (!btrfs_test_opt(root, NODATACOW)) { - if (!btrfs_test_opt(root, COMPRESS) || - !btrfs_test_opt(root, FORCE_COMPRESS)) { + if (!btrfs_test_opt(info, NODATACOW)) { + if (!btrfs_test_opt(info, COMPRESS) || + !btrfs_test_opt(info, FORCE_COMPRESS)) { btrfs_info(root->fs_info, "setting nodatacow, compression disabled"); } else { @@ -461,7 +485,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, btrfs_set_opt(info->mount_opt, NODATASUM); break; case Opt_datacow: - btrfs_clear_and_info(root, NODATACOW, + btrfs_clear_and_info(info, NODATACOW, "setting datacow"); break; case Opt_compress_force: @@ -470,10 +494,11 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, /* Fallthrough */ case Opt_compress: case Opt_compress_type: - saved_compress_type = btrfs_test_opt(root, COMPRESS) ? + saved_compress_type = btrfs_test_opt(info, + COMPRESS) ? info->compress_type : BTRFS_COMPRESS_NONE; saved_compress_force = - btrfs_test_opt(root, FORCE_COMPRESS); + btrfs_test_opt(info, FORCE_COMPRESS); if (token == Opt_compress || token == Opt_compress_force || strcmp(args[0].from, "zlib") == 0) { @@ -513,10 +538,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, */ btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS); } - if ((btrfs_test_opt(root, COMPRESS) && + if ((btrfs_test_opt(info, COMPRESS) && (info->compress_type != saved_compress_type || compress_force != saved_compress_force)) || - (!btrfs_test_opt(root, COMPRESS) && + (!btrfs_test_opt(info, COMPRESS) && no_compress == 1)) { btrfs_info(root->fs_info, "%s %s compression", @@ -526,25 +551,25 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, compress_force = false; break; case Opt_ssd: - btrfs_set_and_info(root, SSD, + btrfs_set_and_info(info, SSD, "use ssd allocation scheme"); break; case Opt_ssd_spread: - btrfs_set_and_info(root, SSD_SPREAD, + btrfs_set_and_info(info, SSD_SPREAD, "use spread ssd allocation scheme"); btrfs_set_opt(info->mount_opt, SSD); break; case Opt_nossd: - btrfs_set_and_info(root, NOSSD, + btrfs_set_and_info(info, NOSSD, "not using ssd allocation scheme"); btrfs_clear_opt(info->mount_opt, SSD); break; case Opt_barrier: - btrfs_clear_and_info(root, NOBARRIER, + btrfs_clear_and_info(info, NOBARRIER, "turning on barriers"); break; case Opt_nobarrier: - btrfs_set_and_info(root, NOBARRIER, + btrfs_set_and_info(info, NOBARRIER, "turning off barriers"); break; case Opt_thread_pool: @@ -604,24 +629,24 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, root->fs_info->sb->s_flags &= ~MS_POSIXACL; break; case Opt_notreelog: - btrfs_set_and_info(root, NOTREELOG, + btrfs_set_and_info(info, NOTREELOG, "disabling tree log"); break; case Opt_treelog: - btrfs_clear_and_info(root, NOTREELOG, + btrfs_clear_and_info(info, NOTREELOG, "enabling tree log"); break; case Opt_norecovery: case Opt_nologreplay: - btrfs_set_and_info(root, NOLOGREPLAY, + btrfs_set_and_info(info, NOLOGREPLAY, "disabling log replay at mount time"); break; case Opt_flushoncommit: - btrfs_set_and_info(root, FLUSHONCOMMIT, + btrfs_set_and_info(info, FLUSHONCOMMIT, "turning on flush-on-commit"); break; case Opt_noflushoncommit: - btrfs_clear_and_info(root, FLUSHONCOMMIT, + btrfs_clear_and_info(info, FLUSHONCOMMIT, "turning off flush-on-commit"); break; case Opt_ratio: @@ -638,11 +663,11 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, } break; case Opt_discard: - btrfs_set_and_info(root, DISCARD, + btrfs_set_and_info(info, DISCARD, "turning on discard"); break; case Opt_nodiscard: - btrfs_clear_and_info(root, DISCARD, + btrfs_clear_and_info(info, DISCARD, "turning off discard"); break; case Opt_space_cache: @@ -651,12 +676,13 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, strcmp(args[0].from, "v1") == 0) { btrfs_clear_opt(root->fs_info->mount_opt, FREE_SPACE_TREE); - btrfs_set_and_info(root, SPACE_CACHE, + btrfs_set_and_info(info, SPACE_CACHE, "enabling disk space caching"); } else if (strcmp(args[0].from, "v2") == 0) { btrfs_clear_opt(root->fs_info->mount_opt, SPACE_CACHE); - btrfs_set_and_info(root, FREE_SPACE_TREE, + btrfs_set_and_info(info, + FREE_SPACE_TREE, "enabling free space tree"); } else { ret = -EINVAL; @@ -667,12 +693,14 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, btrfs_set_opt(info->mount_opt, RESCAN_UUID_TREE); break; case Opt_no_space_cache: - if (btrfs_test_opt(root, SPACE_CACHE)) { - btrfs_clear_and_info(root, SPACE_CACHE, + if (btrfs_test_opt(info, SPACE_CACHE)) { + btrfs_clear_and_info(info, + SPACE_CACHE, "disabling disk space caching"); } - if (btrfs_test_opt(root, FREE_SPACE_TREE)) { - btrfs_clear_and_info(root, FREE_SPACE_TREE, + if (btrfs_test_opt(info, FREE_SPACE_TREE)) { + btrfs_clear_and_info(info, + FREE_SPACE_TREE, "disabling free space tree"); } break; @@ -685,7 +713,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, "disabling inode map caching"); break; case Opt_clear_cache: - btrfs_set_and_info(root, CLEAR_CACHE, + btrfs_set_and_info(info, CLEAR_CACHE, "force clearing of disk cache"); break; case Opt_user_subvol_rm_allowed: @@ -698,11 +726,11 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, btrfs_clear_opt(info->mount_opt, ENOSPC_DEBUG); break; case Opt_defrag: - btrfs_set_and_info(root, AUTO_DEFRAG, + btrfs_set_and_info(info, AUTO_DEFRAG, "enabling auto defrag"); break; case Opt_nodefrag: - btrfs_clear_and_info(root, AUTO_DEFRAG, + btrfs_clear_and_info(info, AUTO_DEFRAG, "disabling auto defrag"); break; case Opt_recovery: @@ -810,22 +838,22 @@ check: /* * Extra check for current option against current flag */ - if (btrfs_test_opt(root, NOLOGREPLAY) && !(new_flags & MS_RDONLY)) { + if (btrfs_test_opt(info, NOLOGREPLAY) && !(new_flags & MS_RDONLY)) { btrfs_err(root->fs_info, "nologreplay must be used with ro mount option"); ret = -EINVAL; } out: if (btrfs_fs_compat_ro(root->fs_info, FREE_SPACE_TREE) && - !btrfs_test_opt(root, FREE_SPACE_TREE) && - !btrfs_test_opt(root, CLEAR_CACHE)) { + !btrfs_test_opt(info, FREE_SPACE_TREE) && + !btrfs_test_opt(info, CLEAR_CACHE)) { btrfs_err(root->fs_info, "cannot disable free space tree"); ret = -EINVAL; } - if (!ret && btrfs_test_opt(root, SPACE_CACHE)) + if (!ret && btrfs_test_opt(info, SPACE_CACHE)) btrfs_info(root->fs_info, "disk space caching is enabled"); - if (!ret && btrfs_test_opt(root, FREE_SPACE_TREE)) + if (!ret && btrfs_test_opt(info, FREE_SPACE_TREE)) btrfs_info(root->fs_info, "using free space tree"); kfree(orig); return ret; @@ -1149,7 +1177,7 @@ int btrfs_sync_fs(struct super_block *sb, int wait) struct btrfs_fs_info *fs_info = btrfs_sb(sb); struct btrfs_root *root = fs_info->tree_root; - trace_btrfs_sync_fs(wait); + trace_btrfs_sync_fs(fs_info, wait); if (!wait) { filemap_flush(fs_info->btree_inode->i_mapping); @@ -1192,13 +1220,13 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry) struct btrfs_root *root = info->tree_root; char *compress_type; - if (btrfs_test_opt(root, DEGRADED)) + if (btrfs_test_opt(info, DEGRADED)) seq_puts(seq, ",degraded"); - if (btrfs_test_opt(root, NODATASUM)) + if (btrfs_test_opt(info, NODATASUM)) seq_puts(seq, ",nodatasum"); - if (btrfs_test_opt(root, NODATACOW)) + if (btrfs_test_opt(info, NODATACOW)) seq_puts(seq, ",nodatacow"); - if (btrfs_test_opt(root, NOBARRIER)) + if (btrfs_test_opt(info, NOBARRIER)) seq_puts(seq, ",nobarrier"); if (info->max_inline != BTRFS_DEFAULT_MAX_INLINE) seq_printf(seq, ",max_inline=%llu", info->max_inline); @@ -1207,56 +1235,56 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry) if (info->thread_pool_size != min_t(unsigned long, num_online_cpus() + 2, 8)) seq_printf(seq, ",thread_pool=%d", info->thread_pool_size); - if (btrfs_test_opt(root, COMPRESS)) { + if (btrfs_test_opt(info, COMPRESS)) { if (info->compress_type == BTRFS_COMPRESS_ZLIB) compress_type = "zlib"; else compress_type = "lzo"; - if (btrfs_test_opt(root, FORCE_COMPRESS)) + if (btrfs_test_opt(info, FORCE_COMPRESS)) seq_printf(seq, ",compress-force=%s", compress_type); else seq_printf(seq, ",compress=%s", compress_type); } - if (btrfs_test_opt(root, NOSSD)) + if (btrfs_test_opt(info, NOSSD)) seq_puts(seq, ",nossd"); - if (btrfs_test_opt(root, SSD_SPREAD)) + if (btrfs_test_opt(info, SSD_SPREAD)) seq_puts(seq, ",ssd_spread"); - else if (btrfs_test_opt(root, SSD)) + else if (btrfs_test_opt(info, SSD)) seq_puts(seq, ",ssd"); - if (btrfs_test_opt(root, NOTREELOG)) + if (btrfs_test_opt(info, NOTREELOG)) seq_puts(seq, ",notreelog"); - if (btrfs_test_opt(root, NOLOGREPLAY)) + if (btrfs_test_opt(info, NOLOGREPLAY)) seq_puts(seq, ",nologreplay"); - if (btrfs_test_opt(root, FLUSHONCOMMIT)) + if (btrfs_test_opt(info, FLUSHONCOMMIT)) seq_puts(seq, ",flushoncommit"); - if (btrfs_test_opt(root, DISCARD)) + if (btrfs_test_opt(info, DISCARD)) seq_puts(seq, ",discard"); if (!(root->fs_info->sb->s_flags & MS_POSIXACL)) seq_puts(seq, ",noacl"); - if (btrfs_test_opt(root, SPACE_CACHE)) + if (btrfs_test_opt(info, SPACE_CACHE)) seq_puts(seq, ",space_cache"); - else if (btrfs_test_opt(root, FREE_SPACE_TREE)) + else if (btrfs_test_opt(info, FREE_SPACE_TREE)) seq_puts(seq, ",space_cache=v2"); else seq_puts(seq, ",nospace_cache"); - if (btrfs_test_opt(root, RESCAN_UUID_TREE)) + if (btrfs_test_opt(info, RESCAN_UUID_TREE)) seq_puts(seq, ",rescan_uuid_tree"); - if (btrfs_test_opt(root, CLEAR_CACHE)) + if (btrfs_test_opt(info, CLEAR_CACHE)) seq_puts(seq, ",clear_cache"); - if (btrfs_test_opt(root, USER_SUBVOL_RM_ALLOWED)) + if (btrfs_test_opt(info, USER_SUBVOL_RM_ALLOWED)) seq_puts(seq, ",user_subvol_rm_allowed"); - if (btrfs_test_opt(root, ENOSPC_DEBUG)) + if (btrfs_test_opt(info, ENOSPC_DEBUG)) seq_puts(seq, ",enospc_debug"); - if (btrfs_test_opt(root, AUTO_DEFRAG)) + if (btrfs_test_opt(info, AUTO_DEFRAG)) seq_puts(seq, ",autodefrag"); - if (btrfs_test_opt(root, INODE_MAP_CACHE)) + if (btrfs_test_opt(info, INODE_MAP_CACHE)) seq_puts(seq, ",inode_cache"); - if (btrfs_test_opt(root, SKIP_BALANCE)) + if (btrfs_test_opt(info, SKIP_BALANCE)) seq_puts(seq, ",skip_balance"); #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY - if (btrfs_test_opt(root, CHECK_INTEGRITY_INCLUDING_EXTENT_DATA)) + if (btrfs_test_opt(info, CHECK_INTEGRITY_INCLUDING_EXTENT_DATA)) seq_puts(seq, ",check_int_data"); - else if (btrfs_test_opt(root, CHECK_INTEGRITY)) + else if (btrfs_test_opt(info, CHECK_INTEGRITY)) seq_puts(seq, ",check_int"); if (info->check_integrity_print_mask) seq_printf(seq, ",check_int_print_mask=%d", @@ -1265,14 +1293,14 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry) if (info->metadata_ratio) seq_printf(seq, ",metadata_ratio=%d", info->metadata_ratio); - if (btrfs_test_opt(root, PANIC_ON_FATAL_ERROR)) + if (btrfs_test_opt(info, PANIC_ON_FATAL_ERROR)) seq_puts(seq, ",fatal_errors=panic"); if (info->commit_interval != BTRFS_DEFAULT_COMMIT_INTERVAL) seq_printf(seq, ",commit=%d", info->commit_interval); #ifdef CONFIG_BTRFS_DEBUG - if (btrfs_test_opt(root, FRAGMENT_DATA)) + if (btrfs_test_opt(info, FRAGMENT_DATA)) seq_puts(seq, ",fragment=data"); - if (btrfs_test_opt(root, FRAGMENT_METADATA)) + if (btrfs_test_opt(info, FRAGMENT_METADATA)) seq_puts(seq, ",fragment=metadata"); #endif seq_printf(seq, ",subvolid=%llu", @@ -2030,9 +2058,6 @@ static int btrfs_calc_avail_data_space(struct btrfs_root *root, u64 *free_bytes) * chunk). * * If metadata is exhausted, f_bavail will be 0. - * - * FIXME: not accurate for mixed block groups, total and free/used are ok, - * available appears slightly larger. */ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf) { @@ -2319,49 +2344,6 @@ static void btrfs_print_mod_info(void) btrfs_crc32c_impl()); } -static int btrfs_run_sanity_tests(void) -{ - int ret, i; - u32 sectorsize, nodesize; - u32 test_sectorsize[] = { - PAGE_SIZE, - }; - ret = btrfs_init_test_fs(); - if (ret) - return ret; - for (i = 0; i < ARRAY_SIZE(test_sectorsize); i++) { - sectorsize = test_sectorsize[i]; - for (nodesize = sectorsize; - nodesize <= BTRFS_MAX_METADATA_BLOCKSIZE; - nodesize <<= 1) { - pr_info("BTRFS: selftest: sectorsize: %u nodesize: %u\n", - sectorsize, nodesize); - ret = btrfs_test_free_space_cache(sectorsize, nodesize); - if (ret) - goto out; - ret = btrfs_test_extent_buffer_operations(sectorsize, - nodesize); - if (ret) - goto out; - ret = btrfs_test_extent_io(sectorsize, nodesize); - if (ret) - goto out; - ret = btrfs_test_inodes(sectorsize, nodesize); - if (ret) - goto out; - ret = btrfs_test_qgroups(sectorsize, nodesize); - if (ret) - goto out; - ret = btrfs_test_free_space_tree(sectorsize, nodesize); - if (ret) - goto out; - } - } -out: - btrfs_destroy_test_fs(); - return ret; -} - static int __init init_btrfs_fs(void) { int err; diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 4879656..c656990 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -326,6 +326,7 @@ SPACE_INFO_ATTR(bytes_used); SPACE_INFO_ATTR(bytes_pinned); SPACE_INFO_ATTR(bytes_reserved); SPACE_INFO_ATTR(bytes_may_use); +SPACE_INFO_ATTR(bytes_readonly); SPACE_INFO_ATTR(disk_used); SPACE_INFO_ATTR(disk_total); BTRFS_ATTR(total_bytes_pinned, btrfs_space_info_show_total_bytes_pinned); @@ -337,6 +338,7 @@ static struct attribute *space_info_attrs[] = { BTRFS_ATTR_PTR(bytes_pinned), BTRFS_ATTR_PTR(bytes_reserved), BTRFS_ATTR_PTR(bytes_may_use), + BTRFS_ATTR_PTR(bytes_readonly), BTRFS_ATTR_PTR(disk_used), BTRFS_ATTR_PTR(disk_total), BTRFS_ATTR_PTR(total_bytes_pinned), diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c index 02223f3..bf62ad9 100644 --- a/fs/btrfs/tests/btrfs-tests.c +++ b/fs/btrfs/tests/btrfs-tests.c @@ -54,7 +54,7 @@ struct inode *btrfs_new_test_inode(void) return new_inode(test_mnt->mnt_sb); } -int btrfs_init_test_fs(void) +static int btrfs_init_test_fs(void) { int ret; @@ -73,7 +73,7 @@ int btrfs_init_test_fs(void) return 0; } -void btrfs_destroy_test_fs(void) +static void btrfs_destroy_test_fs(void) { kern_unmount(test_mnt); unregister_filesystem(&test_type); @@ -128,14 +128,27 @@ struct btrfs_fs_info *btrfs_alloc_dummy_fs_info(void) extent_io_tree_init(&fs_info->freed_extents[0], NULL); extent_io_tree_init(&fs_info->freed_extents[1], NULL); fs_info->pinned_extents = &fs_info->freed_extents[0]; + set_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state); + + test_mnt->mnt_sb->s_fs_info = fs_info; + return fs_info; } -static void btrfs_free_dummy_fs_info(struct btrfs_fs_info *fs_info) +void btrfs_free_dummy_fs_info(struct btrfs_fs_info *fs_info) { struct radix_tree_iter iter; void **slot; + if (!fs_info) + return; + + if (WARN_ON(!test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, + &fs_info->fs_state))) + return; + + test_mnt->mnt_sb->s_fs_info = NULL; + spin_lock(&fs_info->buffer_lock); radix_tree_for_each_slot(slot, &fs_info->buffer_radix, &iter, 0) { struct extent_buffer *eb; @@ -167,10 +180,11 @@ void btrfs_free_dummy_root(struct btrfs_root *root) { if (!root) return; + /* Will be freed by btrfs_free_fs_roots */ + if (WARN_ON(test_bit(BTRFS_ROOT_IN_RADIX, &root->state))) + return; if (root->node) free_extent_buffer(root->node); - if (root->fs_info) - btrfs_free_dummy_fs_info(root->fs_info); kfree(root); } @@ -220,3 +234,46 @@ void btrfs_init_dummy_trans(struct btrfs_trans_handle *trans) INIT_LIST_HEAD(&trans->qgroup_ref_list); trans->type = __TRANS_DUMMY; } + +int btrfs_run_sanity_tests(void) +{ + int ret, i; + u32 sectorsize, nodesize; + u32 test_sectorsize[] = { + PAGE_SIZE, + }; + ret = btrfs_init_test_fs(); + if (ret) + return ret; + for (i = 0; i < ARRAY_SIZE(test_sectorsize); i++) { + sectorsize = test_sectorsize[i]; + for (nodesize = sectorsize; + nodesize <= BTRFS_MAX_METADATA_BLOCKSIZE; + nodesize <<= 1) { + pr_info("BTRFS: selftest: sectorsize: %u nodesize: %u\n", + sectorsize, nodesize); + ret = btrfs_test_free_space_cache(sectorsize, nodesize); + if (ret) + goto out; + ret = btrfs_test_extent_buffer_operations(sectorsize, + nodesize); + if (ret) + goto out; + ret = btrfs_test_extent_io(sectorsize, nodesize); + if (ret) + goto out; + ret = btrfs_test_inodes(sectorsize, nodesize); + if (ret) + goto out; + ret = btrfs_test_qgroups(sectorsize, nodesize); + if (ret) + goto out; + ret = btrfs_test_free_space_tree(sectorsize, nodesize); + if (ret) + goto out; + } + } +out: + btrfs_destroy_test_fs(); + return ret; +} diff --git a/fs/btrfs/tests/btrfs-tests.h b/fs/btrfs/tests/btrfs-tests.h index 66fb6b70..b17ffbe 100644 --- a/fs/btrfs/tests/btrfs-tests.h +++ b/fs/btrfs/tests/btrfs-tests.h @@ -20,57 +20,29 @@ #define __BTRFS_TESTS #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS +int btrfs_run_sanity_tests(void); #define test_msg(fmt, ...) pr_info("BTRFS: selftest: " fmt, ##__VA_ARGS__) struct btrfs_root; struct btrfs_trans_handle; -int btrfs_test_free_space_cache(u32 sectorsize, u32 nodesize); int btrfs_test_extent_buffer_operations(u32 sectorsize, u32 nodesize); +int btrfs_test_free_space_cache(u32 sectorsize, u32 nodesize); int btrfs_test_extent_io(u32 sectorsize, u32 nodesize); int btrfs_test_inodes(u32 sectorsize, u32 nodesize); int btrfs_test_qgroups(u32 sectorsize, u32 nodesize); int btrfs_test_free_space_tree(u32 sectorsize, u32 nodesize); -int btrfs_init_test_fs(void); -void btrfs_destroy_test_fs(void); struct inode *btrfs_new_test_inode(void); struct btrfs_fs_info *btrfs_alloc_dummy_fs_info(void); +void btrfs_free_dummy_fs_info(struct btrfs_fs_info *fs_info); void btrfs_free_dummy_root(struct btrfs_root *root); struct btrfs_block_group_cache * btrfs_alloc_dummy_block_group(unsigned long length, u32 sectorsize); void btrfs_free_dummy_block_group(struct btrfs_block_group_cache *cache); void btrfs_init_dummy_trans(struct btrfs_trans_handle *trans); #else -static inline int btrfs_test_free_space_cache(u32 sectorsize, u32 nodesize) -{ - return 0; -} -static inline int btrfs_test_extent_buffer_operations(u32 sectorsize, - u32 nodesize) -{ - return 0; -} -static inline int btrfs_init_test_fs(void) -{ - return 0; -} -static inline void btrfs_destroy_test_fs(void) -{ -} -static inline int btrfs_test_extent_io(u32 sectorsize, u32 nodesize) -{ - return 0; -} -static inline int btrfs_test_inodes(u32 sectorsize, u32 nodesize) -{ - return 0; -} -static inline int btrfs_test_qgroups(u32 sectorsize, u32 nodesize) -{ - return 0; -} -static inline int btrfs_test_free_space_tree(u32 sectorsize, u32 nodesize) +static inline int btrfs_run_sanity_tests(void) { return 0; } diff --git a/fs/btrfs/tests/extent-buffer-tests.c b/fs/btrfs/tests/extent-buffer-tests.c index 4f8cbd1..1995691 100644 --- a/fs/btrfs/tests/extent-buffer-tests.c +++ b/fs/btrfs/tests/extent-buffer-tests.c @@ -24,8 +24,9 @@ static int test_btrfs_split_item(u32 sectorsize, u32 nodesize) { - struct btrfs_path *path; - struct btrfs_root *root; + struct btrfs_fs_info *fs_info; + struct btrfs_path *path = NULL; + struct btrfs_root *root = NULL; struct extent_buffer *eb; struct btrfs_item *item; char *value = "mary had a little lamb"; @@ -40,17 +41,24 @@ static int test_btrfs_split_item(u32 sectorsize, u32 nodesize) test_msg("Running btrfs_split_item tests\n"); - root = btrfs_alloc_dummy_root(sectorsize, nodesize); + fs_info = btrfs_alloc_dummy_fs_info(); + if (!fs_info) { + test_msg("Could not allocate fs_info\n"); + return -ENOMEM; + } + + root = btrfs_alloc_dummy_root(fs_info, sectorsize, nodesize); if (IS_ERR(root)) { test_msg("Could not allocate root\n"); - return PTR_ERR(root); + ret = PTR_ERR(root); + goto out; } path = btrfs_alloc_path(); if (!path) { test_msg("Could not allocate path\n"); - kfree(root); - return -ENOMEM; + ret = -ENOMEM; + goto out; } path->nodes[0] = eb = alloc_dummy_extent_buffer(NULL, nodesize, @@ -219,7 +227,8 @@ static int test_btrfs_split_item(u32 sectorsize, u32 nodesize) } out: btrfs_free_path(path); - kfree(root); + btrfs_free_dummy_root(root); + btrfs_free_dummy_fs_info(fs_info); return ret; } diff --git a/fs/btrfs/tests/free-space-tests.c b/fs/btrfs/tests/free-space-tests.c index 3956bb2..3221c8d 100644 --- a/fs/btrfs/tests/free-space-tests.c +++ b/fs/btrfs/tests/free-space-tests.c @@ -837,6 +837,7 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache, int btrfs_test_free_space_cache(u32 sectorsize, u32 nodesize) { + struct btrfs_fs_info *fs_info; struct btrfs_block_group_cache *cache; struct btrfs_root *root = NULL; int ret = -ENOMEM; @@ -855,15 +856,17 @@ int btrfs_test_free_space_cache(u32 sectorsize, u32 nodesize) return 0; } - root = btrfs_alloc_dummy_root(sectorsize, nodesize); - if (IS_ERR(root)) { - ret = PTR_ERR(root); + fs_info = btrfs_alloc_dummy_fs_info(); + if (!fs_info) { + ret = -ENOMEM; goto out; } - root->fs_info = btrfs_alloc_dummy_fs_info(); - if (!root->fs_info) + root = btrfs_alloc_dummy_root(fs_info, sectorsize, nodesize); + if (IS_ERR(root)) { + ret = PTR_ERR(root); goto out; + } root->fs_info->extent_root = root; cache->fs_info = root->fs_info; @@ -882,6 +885,7 @@ int btrfs_test_free_space_cache(u32 sectorsize, u32 nodesize) out: btrfs_free_dummy_block_group(cache); btrfs_free_dummy_root(root); + btrfs_free_dummy_fs_info(fs_info); test_msg("Free space cache tests finished\n"); return ret; } diff --git a/fs/btrfs/tests/free-space-tree-tests.c b/fs/btrfs/tests/free-space-tree-tests.c index aac5070..7508d3b 100644 --- a/fs/btrfs/tests/free-space-tree-tests.c +++ b/fs/btrfs/tests/free-space-tree-tests.c @@ -443,23 +443,24 @@ typedef int (*test_func_t)(struct btrfs_trans_handle *, static int run_test(test_func_t test_func, int bitmaps, u32 sectorsize, u32 nodesize) { + struct btrfs_fs_info *fs_info; struct btrfs_root *root = NULL; struct btrfs_block_group_cache *cache = NULL; struct btrfs_trans_handle trans; struct btrfs_path *path = NULL; int ret; - root = btrfs_alloc_dummy_root(sectorsize, nodesize); - if (IS_ERR(root)) { - test_msg("Couldn't allocate dummy root\n"); - ret = PTR_ERR(root); + fs_info = btrfs_alloc_dummy_fs_info(); + if (!fs_info) { + test_msg("Couldn't allocate dummy fs info\n"); + ret = -ENOMEM; goto out; } - root->fs_info = btrfs_alloc_dummy_fs_info(); - if (!root->fs_info) { - test_msg("Couldn't allocate dummy fs info\n"); - ret = -ENOMEM; + root = btrfs_alloc_dummy_root(fs_info, sectorsize, nodesize); + if (IS_ERR(root)) { + test_msg("Couldn't allocate dummy root\n"); + ret = PTR_ERR(root); goto out; } @@ -534,6 +535,7 @@ out: btrfs_free_path(path); btrfs_free_dummy_block_group(cache); btrfs_free_dummy_root(root); + btrfs_free_dummy_fs_info(fs_info); return ret; } diff --git a/fs/btrfs/tests/inode-tests.c b/fs/btrfs/tests/inode-tests.c index 29648c0..9f72aed 100644 --- a/fs/btrfs/tests/inode-tests.c +++ b/fs/btrfs/tests/inode-tests.c @@ -230,6 +230,7 @@ static unsigned long vacancy_only = 0; static noinline int test_btrfs_get_extent(u32 sectorsize, u32 nodesize) { + struct btrfs_fs_info *fs_info = NULL; struct inode *inode = NULL; struct btrfs_root *root = NULL; struct extent_map *em = NULL; @@ -248,19 +249,15 @@ static noinline int test_btrfs_get_extent(u32 sectorsize, u32 nodesize) BTRFS_I(inode)->location.objectid = BTRFS_FIRST_FREE_OBJECTID; BTRFS_I(inode)->location.offset = 0; - root = btrfs_alloc_dummy_root(sectorsize, nodesize); - if (IS_ERR(root)) { - test_msg("Couldn't allocate root\n"); + fs_info = btrfs_alloc_dummy_fs_info(); + if (!fs_info) { + test_msg("Couldn't allocate dummy fs info\n"); goto out; } - /* - * We do this since btrfs_get_extent wants to assign em->bdev to - * root->fs_info->fs_devices->latest_bdev. - */ - root->fs_info = btrfs_alloc_dummy_fs_info(); - if (!root->fs_info) { - test_msg("Couldn't allocate dummy fs info\n"); + root = btrfs_alloc_dummy_root(fs_info, sectorsize, nodesize); + if (IS_ERR(root)) { + test_msg("Couldn't allocate root\n"); goto out; } @@ -835,11 +832,13 @@ out: free_extent_map(em); iput(inode); btrfs_free_dummy_root(root); + btrfs_free_dummy_fs_info(fs_info); return ret; } static int test_hole_first(u32 sectorsize, u32 nodesize) { + struct btrfs_fs_info *fs_info = NULL; struct inode *inode = NULL; struct btrfs_root *root = NULL; struct extent_map *em = NULL; @@ -855,15 +854,15 @@ static int test_hole_first(u32 sectorsize, u32 nodesize) BTRFS_I(inode)->location.objectid = BTRFS_FIRST_FREE_OBJECTID; BTRFS_I(inode)->location.offset = 0; - root = btrfs_alloc_dummy_root(sectorsize, nodesize); - if (IS_ERR(root)) { - test_msg("Couldn't allocate root\n"); + fs_info = btrfs_alloc_dummy_fs_info(); + if (!fs_info) { + test_msg("Couldn't allocate dummy fs info\n"); goto out; } - root->fs_info = btrfs_alloc_dummy_fs_info(); - if (!root->fs_info) { - test_msg("Couldn't allocate dummy fs info\n"); + root = btrfs_alloc_dummy_root(fs_info, sectorsize, nodesize); + if (IS_ERR(root)) { + test_msg("Couldn't allocate root\n"); goto out; } @@ -934,11 +933,13 @@ out: free_extent_map(em); iput(inode); btrfs_free_dummy_root(root); + btrfs_free_dummy_fs_info(fs_info); return ret; } static int test_extent_accounting(u32 sectorsize, u32 nodesize) { + struct btrfs_fs_info *fs_info = NULL; struct inode *inode = NULL; struct btrfs_root *root = NULL; int ret = -ENOMEM; @@ -949,15 +950,15 @@ static int test_extent_accounting(u32 sectorsize, u32 nodesize) return ret; } - root = btrfs_alloc_dummy_root(sectorsize, nodesize); - if (IS_ERR(root)) { - test_msg("Couldn't allocate root\n"); + fs_info = btrfs_alloc_dummy_fs_info(); + if (!fs_info) { + test_msg("Couldn't allocate dummy fs info\n"); goto out; } - root->fs_info = btrfs_alloc_dummy_fs_info(); - if (!root->fs_info) { - test_msg("Couldn't allocate dummy fs info\n"); + root = btrfs_alloc_dummy_root(fs_info, sectorsize, nodesize); + if (IS_ERR(root)) { + test_msg("Couldn't allocate root\n"); goto out; } @@ -1132,6 +1133,7 @@ out: NULL, GFP_KERNEL); iput(inode); btrfs_free_dummy_root(root); + btrfs_free_dummy_fs_info(fs_info); return ret; } diff --git a/fs/btrfs/tests/qgroup-tests.c b/fs/btrfs/tests/qgroup-tests.c index 57a12c0..4407fef 100644 --- a/fs/btrfs/tests/qgroup-tests.c +++ b/fs/btrfs/tests/qgroup-tests.c @@ -453,22 +453,24 @@ static int test_multiple_refs(struct btrfs_root *root, int btrfs_test_qgroups(u32 sectorsize, u32 nodesize) { + struct btrfs_fs_info *fs_info = NULL; struct btrfs_root *root; struct btrfs_root *tmp_root; int ret = 0; - root = btrfs_alloc_dummy_root(sectorsize, nodesize); - if (IS_ERR(root)) { - test_msg("Couldn't allocate root\n"); - return PTR_ERR(root); + fs_info = btrfs_alloc_dummy_fs_info(); + if (!fs_info) { + test_msg("Couldn't allocate dummy fs info\n"); + return -ENOMEM; } - root->fs_info = btrfs_alloc_dummy_fs_info(); - if (!root->fs_info) { - test_msg("Couldn't allocate dummy fs info\n"); - ret = -ENOMEM; + root = btrfs_alloc_dummy_root(fs_info, sectorsize, nodesize); + if (IS_ERR(root)) { + test_msg("Couldn't allocate root\n"); + ret = PTR_ERR(root); goto out; } + /* We are using this root as our extent root */ root->fs_info->extent_root = root; @@ -495,7 +497,7 @@ int btrfs_test_qgroups(u32 sectorsize, u32 nodesize) btrfs_set_header_nritems(root->node, 0); root->alloc_bytenr += 2 * nodesize; - tmp_root = btrfs_alloc_dummy_root(sectorsize, nodesize); + tmp_root = btrfs_alloc_dummy_root(fs_info, sectorsize, nodesize); if (IS_ERR(tmp_root)) { test_msg("Couldn't allocate a fs root\n"); ret = PTR_ERR(tmp_root); @@ -510,7 +512,7 @@ int btrfs_test_qgroups(u32 sectorsize, u32 nodesize) goto out; } - tmp_root = btrfs_alloc_dummy_root(sectorsize, nodesize); + tmp_root = btrfs_alloc_dummy_root(fs_info, sectorsize, nodesize); if (IS_ERR(tmp_root)) { test_msg("Couldn't allocate a fs root\n"); ret = PTR_ERR(tmp_root); @@ -531,5 +533,6 @@ int btrfs_test_qgroups(u32 sectorsize, u32 nodesize) ret = test_multiple_refs(root, sectorsize, nodesize); out: btrfs_free_dummy_root(root); + btrfs_free_dummy_fs_info(fs_info); return ret; } diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 948aa18..9cca0a7 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -561,6 +561,7 @@ again: h->transaction = cur_trans; h->root = root; h->use_count = 1; + h->fs_info = root->fs_info; h->type = type; h->can_flush_pending_bgs = true; @@ -1491,7 +1492,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, goto dir_item_existed; } else if (IS_ERR(dir_item)) { ret = PTR_ERR(dir_item); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } btrfs_release_path(path); @@ -1504,7 +1505,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, */ ret = btrfs_run_delayed_items(trans, root); if (ret) { /* Transaction aborted */ - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } @@ -1543,7 +1544,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, if (ret) { btrfs_tree_unlock(old); free_extent_buffer(old); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } @@ -1554,7 +1555,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, btrfs_tree_unlock(old); free_extent_buffer(old); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } /* see comments in should_cow_block() */ @@ -1568,7 +1569,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, btrfs_tree_unlock(tmp); free_extent_buffer(tmp); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } @@ -1580,7 +1581,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, btrfs_ino(parent_inode), index, dentry->d_name.name, dentry->d_name.len); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } @@ -1588,19 +1589,19 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, pending->snap = btrfs_read_fs_root_no_name(root->fs_info, &key); if (IS_ERR(pending->snap)) { ret = PTR_ERR(pending->snap); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } ret = btrfs_reloc_post_snapshot(trans, pending); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } @@ -1622,7 +1623,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, /* We have check then name at the beginning, so it is impossible. */ BUG_ON(ret == -EEXIST || ret == -EOVERFLOW); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } @@ -1632,13 +1633,13 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, current_fs_time(parent_inode->i_sb); ret = btrfs_update_inode_fallback(trans, parent_root, parent_inode); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } ret = btrfs_uuid_tree_add(trans, fs_info->uuid_root, new_uuid.b, BTRFS_UUID_KEY_SUBVOL, objectid); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } if (!btrfs_is_empty_uuid(new_root_item->received_uuid)) { @@ -1647,14 +1648,14 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, BTRFS_UUID_KEY_RECEIVED_SUBVOL, objectid); if (ret && ret != -EEXIST) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } } ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto fail; } @@ -1709,7 +1710,7 @@ static void update_super_roots(struct btrfs_root *root) super->root = root_item->bytenr; super->generation = root_item->generation; super->root_level = root_item->level; - if (btrfs_test_opt(root, SPACE_CACHE)) + if (btrfs_test_opt(root->fs_info, SPACE_CACHE)) super->cache_generation = root_item->generation; if (root->fs_info->update_uuid_tree_gen) super->uuid_tree_generation = root_item->generation; @@ -1850,7 +1851,7 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans, WARN_ON(trans->use_count > 1); - btrfs_abort_transaction(trans, root, err); + btrfs_abort_transaction(trans, err); spin_lock(&root->fs_info->trans_lock); @@ -1895,14 +1896,14 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans, static inline int btrfs_start_delalloc_flush(struct btrfs_fs_info *fs_info) { - if (btrfs_test_opt(fs_info->tree_root, FLUSHONCOMMIT)) + if (btrfs_test_opt(fs_info, FLUSHONCOMMIT)) return btrfs_start_delalloc_roots(fs_info, 1, -1); return 0; } static inline void btrfs_wait_delalloc_flush(struct btrfs_fs_info *fs_info) { - if (btrfs_test_opt(fs_info->tree_root, FLUSHONCOMMIT)) + if (btrfs_test_opt(fs_info, FLUSHONCOMMIT)) btrfs_wait_ordered_roots(fs_info, -1, 0, (u64)-1); } diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h index c5abee4..efb1226 100644 --- a/fs/btrfs/transaction.h +++ b/fs/btrfs/transaction.h @@ -128,6 +128,7 @@ struct btrfs_trans_handle { * Subvolume quota depends on this */ struct btrfs_root *root; + struct btrfs_fs_info *fs_info; struct seq_list delayed_ref_elem; struct list_head qgroup_ref_list; struct list_head new_bgs; diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index c05f69a8..d31a0c4 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -2757,7 +2757,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, while (1) { int batch = atomic_read(&root->log_batch); /* when we're on an ssd, just kick the log commit out */ - if (!btrfs_test_opt(root, SSD) && + if (!btrfs_test_opt(root->fs_info, SSD) && test_bit(BTRFS_ROOT_MULTI_LOG_TASKS, &root->state)) { mutex_unlock(&root->log_mutex); schedule_timeout_uninterruptible(1); @@ -2788,7 +2788,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, ret = btrfs_write_marked_extents(log, &log->dirty_log_pages, mark); if (ret) { blk_finish_plug(&plug); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); btrfs_free_logged_extents(log, log_transid); btrfs_set_log_full_commit(root->fs_info, trans); mutex_unlock(&root->log_mutex); @@ -2838,7 +2838,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, btrfs_set_log_full_commit(root->fs_info, trans); if (ret != -ENOSPC) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); mutex_unlock(&log_root_tree->log_mutex); goto out; } @@ -2898,7 +2898,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, blk_finish_plug(&plug); if (ret) { btrfs_set_log_full_commit(root->fs_info, trans); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); btrfs_free_logged_extents(log, log_transid); mutex_unlock(&log_root_tree->log_mutex); goto out_wake_log_root; @@ -2934,7 +2934,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, ret = write_ctree_super(trans, root->fs_info->tree_root, 1); if (ret) { btrfs_set_log_full_commit(root->fs_info, trans); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out_wake_log_root; } @@ -2991,7 +2991,7 @@ static void free_log_tree(struct btrfs_trans_handle *trans, ret = walk_log_tree(trans, log, &wc); /* I don't think this can happen but just in case */ if (ret) - btrfs_abort_transaction(trans, log, ret); + btrfs_abort_transaction(trans, ret); while (1) { ret = find_first_extent_bit(&log->dirty_log_pages, @@ -3160,7 +3160,7 @@ out_unlock: btrfs_set_log_full_commit(root->fs_info, trans); ret = 0; } else if (ret < 0) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); btrfs_end_log_trans(root); @@ -3193,7 +3193,7 @@ int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans, btrfs_set_log_full_commit(root->fs_info, trans); ret = 0; } else if (ret < 0 && ret != -ENOENT) - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); btrfs_end_log_trans(root); return ret; @@ -4703,6 +4703,10 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans, ins_nr = 0; ret = btrfs_search_forward(root, &min_key, path, trans->transid); + if (ret < 0) { + err = ret; + goto out_unlock; + } if (ret != 0) break; again: @@ -5301,7 +5305,7 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans, sb = inode->i_sb; - if (btrfs_test_opt(root, NOTREELOG)) { + if (btrfs_test_opt(root->fs_info, NOTREELOG)) { ret = 1; goto end_no_trans; } diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 0fb4a95..bb0addc 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -140,7 +140,6 @@ static int btrfs_relocate_sys_chunks(struct btrfs_root *root); static void __btrfs_reset_dev_stats(struct btrfs_device *dev); static void btrfs_dev_stat_print_on_error(struct btrfs_device *dev); static void btrfs_dev_stat_print_on_load(struct btrfs_device *device); -static void btrfs_close_one_device(struct btrfs_device *device); DEFINE_MUTEX(uuid_mutex); static LIST_HEAD(fs_uuids); @@ -853,6 +852,46 @@ static void free_device(struct rcu_head *head) schedule_work(&device->rcu_work); } +static void btrfs_close_one_device(struct btrfs_device *device) +{ + struct btrfs_fs_devices *fs_devices = device->fs_devices; + struct btrfs_device *new_device; + struct rcu_string *name; + + if (device->bdev) + fs_devices->open_devices--; + + if (device->writeable && + device->devid != BTRFS_DEV_REPLACE_DEVID) { + list_del_init(&device->dev_alloc_list); + fs_devices->rw_devices--; + } + + if (device->missing) + fs_devices->missing_devices--; + + if (device->bdev && device->writeable) { + sync_blockdev(device->bdev); + invalidate_bdev(device->bdev); + } + + new_device = btrfs_alloc_device(NULL, &device->devid, + device->uuid); + BUG_ON(IS_ERR(new_device)); /* -ENOMEM */ + + /* Safe because we are under uuid_mutex */ + if (device->name) { + name = rcu_string_strdup(device->name->str, GFP_NOFS); + BUG_ON(!name); /* -ENOMEM */ + rcu_assign_pointer(new_device->name, name); + } + + list_replace_rcu(&device->dev_list, &new_device->dev_list); + new_device->fs_devices = device->fs_devices; + + call_rcu(&device->rcu, free_device); +} + static int __btrfs_close_devices(struct btrfs_fs_devices *fs_devices) { struct btrfs_device *device, *tmp; @@ -2399,14 +2438,14 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) ret = init_first_rw_device(trans, root, device); unlock_chunks(root); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto error_trans; } } ret = btrfs_add_device(trans, root, device); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto error_trans; } @@ -2415,7 +2454,7 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) ret = btrfs_finish_sprout(trans, root); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto error_trans; } @@ -2801,7 +2840,7 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans, &dev_extent_len); if (ret) { mutex_unlock(&fs_devices->device_list_mutex); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -2820,7 +2859,7 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans, ret = btrfs_update_device(trans, map->stripes[i].dev); if (ret) { mutex_unlock(&fs_devices->device_list_mutex); - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } } @@ -2829,7 +2868,7 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans, ret = btrfs_free_chunk(trans, root, chunk_objectid, chunk_offset); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -2838,14 +2877,14 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans, if (map->type & BTRFS_BLOCK_GROUP_SYSTEM) { ret = btrfs_del_sys_chunk(root, chunk_objectid, chunk_offset); if (ret) { - btrfs_abort_transaction(trans, root, ret); + btrfs_abort_transaction(trans, ret); goto out; } } ret = btrfs_remove_block_group(trans, extent_root, chunk_offset, em); if (ret) { - btrfs_abort_transaction(trans, extent_root, ret); + btrfs_abort_transaction(trans, ret); goto out; } @@ -2902,7 +2941,7 @@ static int btrfs_relocate_chunk(struct btrfs_root *root, u64 chunk_offset) * chunk tree entries */ ret = btrfs_remove_chunk(trans, root, chunk_offset); - btrfs_end_transaction(trans, root); + btrfs_end_transaction(trans, extent_root); return ret; } @@ -3421,7 +3460,7 @@ static int __btrfs_balance(struct btrfs_fs_info *fs_info) u64 size_to_free; u64 chunk_type; struct btrfs_chunk *chunk; - struct btrfs_path *path; + struct btrfs_path *path = NULL; struct btrfs_key key; struct btrfs_key found_key; struct btrfs_trans_handle *trans; @@ -3455,13 +3494,33 @@ static int __btrfs_balance(struct btrfs_fs_info *fs_info) ret = btrfs_shrink_device(device, old_size - size_to_free); if (ret == -ENOSPC) break; - BUG_ON(ret); + if (ret) { + /* btrfs_shrink_device never returns ret > 0 */ + WARN_ON(ret > 0); + goto error; + } trans = btrfs_start_transaction(dev_root, 0); - BUG_ON(IS_ERR(trans)); + if (IS_ERR(trans)) { + ret = PTR_ERR(trans); + btrfs_info_in_rcu(fs_info, + "resize: unable to start transaction after shrinking device %s (error %d), old size %llu, new size %llu", + rcu_str_deref(device->name), ret, + old_size, old_size - size_to_free); + goto error; + } ret = btrfs_grow_device(trans, device, old_size); - BUG_ON(ret); + if (ret) { + btrfs_end_transaction(trans, dev_root); + /* btrfs_grow_device never returns ret > 0 */ + WARN_ON(ret > 0); + btrfs_info_in_rcu(fs_info, + "resize: unable to grow device after shrinking device %s (error %d), old size %llu, new size %llu", + rcu_str_deref(device->name), ret, + old_size, old_size - size_to_free); + goto error; + } btrfs_end_transaction(trans, dev_root); } @@ -3885,7 +3944,7 @@ int btrfs_resume_balance_async(struct btrfs_fs_info *fs_info) } spin_unlock(&fs_info->balance_lock); - if (btrfs_test_opt(fs_info->tree_root, SKIP_BALANCE)) { + if (btrfs_test_opt(fs_info, SKIP_BALANCE)) { btrfs_info(fs_info, "force skipping balance"); return 0; } @@ -4240,7 +4299,7 @@ int btrfs_create_uuid_tree(struct btrfs_fs_info *fs_info) BTRFS_UUID_TREE_OBJECTID); if (IS_ERR(uuid_root)) { ret = PTR_ERR(uuid_root); - btrfs_abort_transaction(trans, tree_root, ret); + btrfs_abort_transaction(trans, ret); btrfs_end_transaction(trans, tree_root); return ret; } @@ -4514,8 +4573,7 @@ static void check_raid56_incompat_flag(struct btrfs_fs_info *info, u64 type) btrfs_set_fs_incompat(info, RAID56); } -#define BTRFS_MAX_DEVS(r) ((BTRFS_LEAF_DATA_SIZE(r) \ - - sizeof(struct btrfs_item) \ +#define BTRFS_MAX_DEVS(r) ((BTRFS_MAX_ITEM_SIZE(r) \ - sizeof(struct btrfs_chunk)) \ / sizeof(struct btrfs_stripe) + 1) @@ -6401,7 +6459,8 @@ static int read_one_chunk(struct btrfs_root *root, struct btrfs_key *key, BTRFS_UUID_SIZE); map->stripes[i].dev = btrfs_find_device(root->fs_info, devid, uuid, NULL); - if (!map->stripes[i].dev && !btrfs_test_opt(root, DEGRADED)) { + if (!map->stripes[i].dev && + !btrfs_test_opt(root->fs_info, DEGRADED)) { free_extent_map(em); return -EIO; } @@ -6469,7 +6528,7 @@ static struct btrfs_fs_devices *open_seed_devices(struct btrfs_root *root, fs_devices = find_fsid(fsid); if (!fs_devices) { - if (!btrfs_test_opt(root, DEGRADED)) + if (!btrfs_test_opt(root->fs_info, DEGRADED)) return ERR_PTR(-ENOENT); fs_devices = alloc_fs_devices(fsid); @@ -6531,7 +6590,7 @@ static int read_one_dev(struct btrfs_root *root, device = btrfs_find_device(root->fs_info, devid, dev_uuid, fs_uuid); if (!device) { - if (!btrfs_test_opt(root, DEGRADED)) + if (!btrfs_test_opt(root->fs_info, DEGRADED)) return -EIO; device = add_missing_dev(root, fs_devices, devid, dev_uuid); @@ -6540,7 +6599,7 @@ static int read_one_dev(struct btrfs_root *root, btrfs_warn(root->fs_info, "devid %llu uuid %pU missing", devid, dev_uuid); } else { - if (!device->bdev && !btrfs_test_opt(root, DEGRADED)) + if (!device->bdev && !btrfs_test_opt(root->fs_info, DEGRADED)) return -EIO; if(!device->bdev && !device->missing) { @@ -7143,38 +7202,3 @@ void btrfs_reset_fs_info_ptr(struct btrfs_fs_info *fs_info) fs_devices = fs_devices->seed; } } - -static void btrfs_close_one_device(struct btrfs_device *device) -{ - struct btrfs_fs_devices *fs_devices = device->fs_devices; - struct btrfs_device *new_device; - struct rcu_string *name; - - if (device->bdev) - fs_devices->open_devices--; - - if (device->writeable && - device->devid != BTRFS_DEV_REPLACE_DEVID) { - list_del_init(&device->dev_alloc_list); - fs_devices->rw_devices--; - } - - if (device->missing) - fs_devices->missing_devices--; - - new_device = btrfs_alloc_device(NULL, &device->devid, - device->uuid); - BUG_ON(IS_ERR(new_device)); /* -ENOMEM */ - - /* Safe because we are under uuid_mutex */ - if (device->name) { - name = rcu_string_strdup(device->name->str, GFP_NOFS); - BUG_ON(!name); /* -ENOMEM */ - rcu_assign_pointer(new_device->name, name); - } - - list_replace_rcu(&device->dev_list, &new_device->dev_list); - new_device->fs_devices = device->fs_devices; - - call_rcu(&device->rcu, free_device); -} @@ -762,6 +762,39 @@ out_unlock: } EXPORT_SYMBOL(setup_arg_pages); +#else + +/* + * Transfer the program arguments and environment from the holding pages + * onto the stack. The provided stack pointer is adjusted accordingly. + */ +int transfer_args_to_stack(struct linux_binprm *bprm, + unsigned long *sp_location) +{ + unsigned long index, stop, sp; + int ret = 0; + + stop = bprm->p >> PAGE_SHIFT; + sp = *sp_location; + + for (index = MAX_ARG_PAGES - 1; index >= stop; index--) { + unsigned int offset = index == stop ? bprm->p & ~PAGE_MASK : 0; + char *src = kmap(bprm->page[index]) + offset; + sp -= PAGE_SIZE - offset; + if (copy_to_user((void *) sp, src, PAGE_SIZE - offset) != 0) + ret = -EFAULT; + kunmap(bprm->page[index]); + if (ret) + goto out; + } + + *sp_location = sp; + +out: + return ret; +} +EXPORT_SYMBOL(transfer_args_to_stack); + #endif /* CONFIG_MMU */ static struct file *do_open_execat(int fd, struct filename *name, int flags) diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index 5c57654..90e46cd 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -959,10 +959,11 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent) if (S_ISLNK(root_inode->i_mode)) { char *name = follow_link(host_root_path); - if (IS_ERR(name)) + if (IS_ERR(name)) { err = PTR_ERR(name); - else - err = read_name(root_inode, name); + goto out_put; + } + err = read_name(root_inode, name); kfree(name); if (err) goto out_put; diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig index c9f583d..47febcf 100644 --- a/fs/nfsd/Kconfig +++ b/fs/nfsd/Kconfig @@ -90,6 +90,7 @@ config NFSD_BLOCKLAYOUT bool "NFSv4.1 server support for pNFS block layouts" depends on NFSD_V4 && BLOCK select NFSD_PNFS + select EXPORTFS_BLOCK_OPS help This option enables support for the exporting pNFS block layouts in the kernel's NFS server. The pNFS block layout enables NFS @@ -102,6 +103,7 @@ config NFSD_SCSILAYOUT bool "NFSv4.1 server support for pNFS SCSI layouts" depends on NFSD_V4 && BLOCK select NFSD_PNFS + select EXPORTFS_BLOCK_OPS help This option enables support for the exporting pNFS SCSI layouts in the kernel's NFS server. The pNFS SCSI layout enables NFS @@ -111,6 +113,23 @@ config NFSD_SCSILAYOUT If unsure, say N. +config NFSD_FLEXFILELAYOUT + bool "NFSv4.1 server support for pNFS Flex File layouts" + depends on NFSD_V4 + select NFSD_PNFS + help + This option enables support for the exporting pNFS Flex File + layouts in the kernel's NFS server. The pNFS Flex File layout + enables NFS clients to directly perform I/O to NFSv3 devices + accesible to both the server and the clients. See + draft-ietf-nfsv4-flex-files for more details. + + Warning, this server implements the bare minimum functionality + to be a flex file server - it is for testing the client, + not for use in production. + + If unsure, say N. + config NFSD_V4_SECURITY_LABEL bool "Provide Security Label support for NFSv4 server" depends on NFSD_V4 && SECURITY diff --git a/fs/nfsd/Makefile b/fs/nfsd/Makefile index 3ae5f3c..5f5d3a7 100644 --- a/fs/nfsd/Makefile +++ b/fs/nfsd/Makefile @@ -20,3 +20,4 @@ nfsd-$(CONFIG_NFSD_V4) += nfs4proc.o nfs4xdr.o nfs4state.o nfs4idmap.o \ nfsd-$(CONFIG_NFSD_PNFS) += nfs4layouts.o nfsd-$(CONFIG_NFSD_BLOCKLAYOUT) += blocklayout.o blocklayoutxdr.o nfsd-$(CONFIG_NFSD_SCSILAYOUT) += blocklayout.o blocklayoutxdr.o +nfsd-$(CONFIG_NFSD_FLEXFILELAYOUT) += flexfilelayout.o flexfilelayoutxdr.o diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c index ad2c05e..5a17084 100644 --- a/fs/nfsd/blocklayout.c +++ b/fs/nfsd/blocklayout.c @@ -163,6 +163,7 @@ nfsd4_block_get_device_info_simple(struct super_block *sb, static __be32 nfsd4_block_proc_getdeviceinfo(struct super_block *sb, + struct svc_rqst *rqstp, struct nfs4_client *clp, struct nfsd4_getdeviceinfo *gdp) { @@ -355,6 +356,7 @@ nfsd4_block_get_device_info_scsi(struct super_block *sb, static __be32 nfsd4_scsi_proc_getdeviceinfo(struct super_block *sb, + struct svc_rqst *rqstp, struct nfs4_client *clp, struct nfsd4_getdeviceinfo *gdp) { diff --git a/fs/nfsd/blocklayoutxdr.c b/fs/nfsd/blocklayoutxdr.c index 4ebaaf4..ac6f545 100644 --- a/fs/nfsd/blocklayoutxdr.c +++ b/fs/nfsd/blocklayoutxdr.c @@ -44,7 +44,7 @@ nfsd4_block_encode_volume(struct xdr_stream *xdr, struct pnfs_block_volume *b) switch (b->type) { case PNFS_BLOCK_VOLUME_SIMPLE: - len = 4 + 4 + 8 + 4 + b->simple.sig_len; + len = 4 + 4 + 8 + 4 + (XDR_QUADLEN(b->simple.sig_len) << 2); p = xdr_reserve_space(xdr, len); if (!p) return -ETOOSMALL; @@ -55,7 +55,7 @@ nfsd4_block_encode_volume(struct xdr_stream *xdr, struct pnfs_block_volume *b) p = xdr_encode_opaque(p, b->simple.sig, b->simple.sig_len); break; case PNFS_BLOCK_VOLUME_SCSI: - len = 4 + 4 + 4 + 4 + b->scsi.designator_len + 8; + len = 4 + 4 + 4 + 4 + (XDR_QUADLEN(b->scsi.designator_len) << 2) + 8; p = xdr_reserve_space(xdr, len); if (!p) return -ETOOSMALL; diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index b4d84b5..43e109c 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -706,7 +706,7 @@ static void svc_export_init(struct cache_head *cnew, struct cache_head *citem) new->ex_fslocs.locations = NULL; new->ex_fslocs.locations_count = 0; new->ex_fslocs.migrated = 0; - new->ex_layout_type = 0; + new->ex_layout_types = 0; new->ex_uuid = NULL; new->cd = item->cd; } @@ -731,7 +731,7 @@ static void export_update(struct cache_head *cnew, struct cache_head *citem) item->ex_fslocs.locations_count = 0; new->ex_fslocs.migrated = item->ex_fslocs.migrated; item->ex_fslocs.migrated = 0; - new->ex_layout_type = item->ex_layout_type; + new->ex_layout_types = item->ex_layout_types; new->ex_nflavors = item->ex_nflavors; for (i = 0; i < MAX_SECINFO_LIST; i++) { new->ex_flavors[i] = item->ex_flavors[i]; @@ -954,6 +954,16 @@ __be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp) rqstp->rq_cred.cr_flavor == RPC_AUTH_UNIX) return 0; } + + /* If the compound op contains a spo_must_allowed op, + * it will be sent with integrity/protection which + * will have to be expressly allowed on mounts that + * don't support it + */ + + if (nfsd4_spo_must_allow(rqstp)) + return 0; + return nfserr_wrongsec; } diff --git a/fs/nfsd/export.h b/fs/nfsd/export.h index 2e31507..730f15e 100644 --- a/fs/nfsd/export.h +++ b/fs/nfsd/export.h @@ -57,7 +57,7 @@ struct svc_export { struct nfsd4_fs_locations ex_fslocs; uint32_t ex_nflavors; struct exp_flavor_info ex_flavors[MAX_SECINFO_LIST]; - enum pnfs_layouttype ex_layout_type; + u32 ex_layout_types; struct nfsd4_deviceid_map *ex_devid_map; struct cache_detail *cd; }; diff --git a/fs/nfsd/flexfilelayout.c b/fs/nfsd/flexfilelayout.c new file mode 100644 index 0000000..df880e9 --- /dev/null +++ b/fs/nfsd/flexfilelayout.c @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2016 Tom Haynes <loghyr@primarydata.com> + * + * The following implements a super-simple flex-file server + * where the NFSv4.1 mds is also the ds. And the storage is + * the same. I.e., writing to the mds via a NFSv4.1 WRITE + * goes to the same location as the NFSv3 WRITE. + */ +#include <linux/slab.h> + +#include <linux/nfsd/debug.h> + +#include <linux/sunrpc/addr.h> + +#include "flexfilelayoutxdr.h" +#include "pnfs.h" + +#define NFSDDBG_FACILITY NFSDDBG_PNFS + +static __be32 +nfsd4_ff_proc_layoutget(struct inode *inode, const struct svc_fh *fhp, + struct nfsd4_layoutget *args) +{ + struct nfsd4_layout_seg *seg = &args->lg_seg; + u32 device_generation = 0; + int error; + uid_t u; + + struct pnfs_ff_layout *fl; + + /* + * The super simple flex file server has 1 mirror, 1 data server, + * and 1 file handle. So instead of 4 allocs, do 1 for now. + * Zero it out for the stateid - don't want junk in there! + */ + error = -ENOMEM; + fl = kzalloc(sizeof(*fl), GFP_KERNEL); + if (!fl) + goto out_error; + args->lg_content = fl; + + /* + * Avoid layout commit, try to force the I/O to the DS, + * and for fun, cause all IOMODE_RW layout segments to + * effectively be WRITE only. + */ + fl->flags = FF_FLAGS_NO_LAYOUTCOMMIT | FF_FLAGS_NO_IO_THRU_MDS | + FF_FLAGS_NO_READ_IO; + + /* Do not allow a IOMODE_READ segment to have write pemissions */ + if (seg->iomode == IOMODE_READ) { + u = from_kuid(&init_user_ns, inode->i_uid) + 1; + fl->uid = make_kuid(&init_user_ns, u); + } else + fl->uid = inode->i_uid; + fl->gid = inode->i_gid; + + error = nfsd4_set_deviceid(&fl->deviceid, fhp, device_generation); + if (error) + goto out_error; + + fl->fh.size = fhp->fh_handle.fh_size; + memcpy(fl->fh.data, &fhp->fh_handle.fh_base, fl->fh.size); + + /* Give whole file layout segments */ + seg->offset = 0; + seg->length = NFS4_MAX_UINT64; + + dprintk("GET: 0x%llx:0x%llx %d\n", seg->offset, seg->length, + seg->iomode); + return 0; + +out_error: + seg->length = 0; + return nfserrno(error); +} + +static __be32 +nfsd4_ff_proc_getdeviceinfo(struct super_block *sb, struct svc_rqst *rqstp, + struct nfs4_client *clp, struct nfsd4_getdeviceinfo *gdp) +{ + struct pnfs_ff_device_addr *da; + + u16 port; + char addr[INET6_ADDRSTRLEN]; + + da = kzalloc(sizeof(struct pnfs_ff_device_addr), GFP_KERNEL); + if (!da) + return nfserrno(-ENOMEM); + + gdp->gd_device = da; + + da->version = 3; + da->minor_version = 0; + + da->rsize = svc_max_payload(rqstp); + da->wsize = da->rsize; + + rpc_ntop((struct sockaddr *)&rqstp->rq_daddr, + addr, INET6_ADDRSTRLEN); + if (rqstp->rq_daddr.ss_family == AF_INET) { + struct sockaddr_in *sin; + + sin = (struct sockaddr_in *)&rqstp->rq_daddr; + port = ntohs(sin->sin_port); + snprintf(da->netaddr.netid, FF_NETID_LEN + 1, "tcp"); + da->netaddr.netid_len = 3; + } else { + struct sockaddr_in6 *sin6; + + sin6 = (struct sockaddr_in6 *)&rqstp->rq_daddr; + port = ntohs(sin6->sin6_port); + snprintf(da->netaddr.netid, FF_NETID_LEN + 1, "tcp6"); + da->netaddr.netid_len = 4; + } + + da->netaddr.addr_len = + snprintf(da->netaddr.addr, FF_ADDR_LEN + 1, + "%s.%hhu.%hhu", addr, port >> 8, port & 0xff); + + da->tightly_coupled = false; + + return 0; +} + +const struct nfsd4_layout_ops ff_layout_ops = { + .notify_types = + NOTIFY_DEVICEID4_DELETE | NOTIFY_DEVICEID4_CHANGE, + .proc_getdeviceinfo = nfsd4_ff_proc_getdeviceinfo, + .encode_getdeviceinfo = nfsd4_ff_encode_getdeviceinfo, + .proc_layoutget = nfsd4_ff_proc_layoutget, + .encode_layoutget = nfsd4_ff_encode_layoutget, +}; diff --git a/fs/nfsd/flexfilelayoutxdr.c b/fs/nfsd/flexfilelayoutxdr.c new file mode 100644 index 0000000..5e3fd7f --- /dev/null +++ b/fs/nfsd/flexfilelayoutxdr.c @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2016 Tom Haynes <loghyr@primarydata.com> + */ +#include <linux/sunrpc/svc.h> +#include <linux/nfs4.h> + +#include "nfsd.h" +#include "flexfilelayoutxdr.h" + +#define NFSDDBG_FACILITY NFSDDBG_PNFS + +struct ff_idmap { + char buf[11]; + int len; +}; + +__be32 +nfsd4_ff_encode_layoutget(struct xdr_stream *xdr, + struct nfsd4_layoutget *lgp) +{ + struct pnfs_ff_layout *fl = lgp->lg_content; + int len, mirror_len, ds_len, fh_len; + __be32 *p; + + /* + * Unlike nfsd4_encode_user, we know these will + * always be stringified. + */ + struct ff_idmap uid; + struct ff_idmap gid; + + fh_len = 4 + fl->fh.size; + + uid.len = sprintf(uid.buf, "%u", from_kuid(&init_user_ns, fl->uid)); + gid.len = sprintf(gid.buf, "%u", from_kgid(&init_user_ns, fl->gid)); + + /* 8 + len for recording the length, name, and padding */ + ds_len = 20 + sizeof(stateid_opaque_t) + 4 + fh_len + + 8 + uid.len + 8 + gid.len; + + mirror_len = 4 + ds_len; + + /* The layout segment */ + len = 20 + mirror_len; + + p = xdr_reserve_space(xdr, sizeof(__be32) + len); + if (!p) + return nfserr_toosmall; + + *p++ = cpu_to_be32(len); + p = xdr_encode_hyper(p, 0); /* stripe unit of 1 */ + + *p++ = cpu_to_be32(1); /* single mirror */ + *p++ = cpu_to_be32(1); /* single data server */ + + p = xdr_encode_opaque_fixed(p, &fl->deviceid, + sizeof(struct nfsd4_deviceid)); + + *p++ = cpu_to_be32(1); /* efficiency */ + + *p++ = cpu_to_be32(fl->stateid.si_generation); + p = xdr_encode_opaque_fixed(p, &fl->stateid.si_opaque, + sizeof(stateid_opaque_t)); + + *p++ = cpu_to_be32(1); /* single file handle */ + p = xdr_encode_opaque(p, fl->fh.data, fl->fh.size); + + p = xdr_encode_opaque(p, uid.buf, uid.len); + p = xdr_encode_opaque(p, gid.buf, gid.len); + + *p++ = cpu_to_be32(fl->flags); + *p++ = cpu_to_be32(0); /* No stats collect hint */ + + return 0; +} + +__be32 +nfsd4_ff_encode_getdeviceinfo(struct xdr_stream *xdr, + struct nfsd4_getdeviceinfo *gdp) +{ + struct pnfs_ff_device_addr *da = gdp->gd_device; + int len; + int ver_len; + int addr_len; + __be32 *p; + + /* len + padding for two strings */ + addr_len = 16 + da->netaddr.netid_len + da->netaddr.addr_len; + ver_len = 20; + + len = 4 + ver_len + 4 + addr_len; + + p = xdr_reserve_space(xdr, len + sizeof(__be32)); + if (!p) + return nfserr_resource; + + /* + * Fill in the overall length and number of volumes at the beginning + * of the layout. + */ + *p++ = cpu_to_be32(len); + *p++ = cpu_to_be32(1); /* 1 netaddr */ + p = xdr_encode_opaque(p, da->netaddr.netid, da->netaddr.netid_len); + p = xdr_encode_opaque(p, da->netaddr.addr, da->netaddr.addr_len); + + *p++ = cpu_to_be32(1); /* 1 versions */ + + *p++ = cpu_to_be32(da->version); + *p++ = cpu_to_be32(da->minor_version); + *p++ = cpu_to_be32(da->rsize); + *p++ = cpu_to_be32(da->wsize); + *p++ = cpu_to_be32(da->tightly_coupled); + + return 0; +} diff --git a/fs/nfsd/flexfilelayoutxdr.h b/fs/nfsd/flexfilelayoutxdr.h new file mode 100644 index 0000000..467defd --- /dev/null +++ b/fs/nfsd/flexfilelayoutxdr.h @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2016 Tom Haynes <loghyr@primarydata.com> + */ +#ifndef _NFSD_FLEXFILELAYOUTXDR_H +#define _NFSD_FLEXFILELAYOUTXDR_H 1 + +#include <linux/inet.h> +#include "xdr4.h" + +#define FF_FLAGS_NO_LAYOUTCOMMIT 1 +#define FF_FLAGS_NO_IO_THRU_MDS 2 +#define FF_FLAGS_NO_READ_IO 4 + +struct xdr_stream; + +#define FF_NETID_LEN (4) +#define FF_ADDR_LEN (INET6_ADDRSTRLEN + 8) +struct pnfs_ff_netaddr { + char netid[FF_NETID_LEN + 1]; + char addr[FF_ADDR_LEN + 1]; + u32 netid_len; + u32 addr_len; +}; + +struct pnfs_ff_device_addr { + struct pnfs_ff_netaddr netaddr; + u32 version; + u32 minor_version; + u32 rsize; + u32 wsize; + bool tightly_coupled; +}; + +struct pnfs_ff_layout { + u32 flags; + u32 stats_collect_hint; + kuid_t uid; + kgid_t gid; + struct nfsd4_deviceid deviceid; + stateid_t stateid; + struct nfs_fh fh; +}; + +__be32 nfsd4_ff_encode_getdeviceinfo(struct xdr_stream *xdr, + struct nfsd4_getdeviceinfo *gdp); +__be32 nfsd4_ff_encode_layoutget(struct xdr_stream *xdr, + struct nfsd4_layoutget *lgp); + +#endif /* _NFSD_FLEXFILELAYOUTXDR_H */ diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c index 953c075..2be9602 100644 --- a/fs/nfsd/nfs4layouts.c +++ b/fs/nfsd/nfs4layouts.c @@ -27,6 +27,9 @@ static const struct nfsd4_callback_ops nfsd4_cb_layout_ops; static const struct lock_manager_operations nfsd4_layouts_lm_ops; const struct nfsd4_layout_ops *nfsd4_layout_ops[LAYOUT_TYPE_MAX] = { +#ifdef CONFIG_NFSD_FLEXFILELAYOUT + [LAYOUT_FLEX_FILES] = &ff_layout_ops, +#endif #ifdef CONFIG_NFSD_BLOCKLAYOUT [LAYOUT_BLOCK_VOLUME] = &bl_layout_ops, #endif @@ -122,28 +125,35 @@ nfsd4_set_deviceid(struct nfsd4_deviceid *id, const struct svc_fh *fhp, void nfsd4_setup_layout_type(struct svc_export *exp) { +#if defined(CONFIG_NFSD_BLOCKLAYOUT) || defined(CONFIG_NFSD_SCSILAYOUT) struct super_block *sb = exp->ex_path.mnt->mnt_sb; +#endif if (!(exp->ex_flags & NFSEXP_PNFS)) return; /* - * Check if the file system supports exporting a block-like layout. + * If flex file is configured, use it by default. Otherwise + * check if the file system supports exporting a block-like layout. * If the block device supports reservations prefer the SCSI layout, * otherwise advertise the block layout. */ +#ifdef CONFIG_NFSD_FLEXFILELAYOUT + exp->ex_layout_types |= 1 << LAYOUT_FLEX_FILES; +#endif #ifdef CONFIG_NFSD_BLOCKLAYOUT + /* overwrite flex file layout selection if needed */ if (sb->s_export_op->get_uuid && sb->s_export_op->map_blocks && sb->s_export_op->commit_blocks) - exp->ex_layout_type = LAYOUT_BLOCK_VOLUME; + exp->ex_layout_types |= 1 << LAYOUT_BLOCK_VOLUME; #endif #ifdef CONFIG_NFSD_SCSILAYOUT /* overwrite block layout selection if needed */ if (sb->s_export_op->map_blocks && sb->s_export_op->commit_blocks && sb->s_bdev && sb->s_bdev->bd_disk->fops->pr_ops) - exp->ex_layout_type = LAYOUT_SCSI; + exp->ex_layout_types |= 1 << LAYOUT_SCSI; #endif } diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index de1ff1d..1fb2227 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -605,8 +605,7 @@ nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, fh_init(&resfh, NFS4_FHSIZE); - status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, - NFSD_MAY_CREATE); + status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_NOP); if (status) return status; @@ -1219,12 +1218,12 @@ nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, static const struct nfsd4_layout_ops * nfsd4_layout_verify(struct svc_export *exp, unsigned int layout_type) { - if (!exp->ex_layout_type) { + if (!exp->ex_layout_types) { dprintk("%s: export does not support pNFS\n", __func__); return NULL; } - if (exp->ex_layout_type != layout_type) { + if (!(exp->ex_layout_types & (1 << layout_type))) { dprintk("%s: layout type %d not supported\n", __func__, layout_type); return NULL; @@ -1270,7 +1269,7 @@ nfsd4_getdeviceinfo(struct svc_rqst *rqstp, nfserr = nfs_ok; if (gdp->gd_maxcount != 0) { nfserr = ops->proc_getdeviceinfo(exp->ex_path.mnt->mnt_sb, - cstate->session->se_client, gdp); + rqstp, cstate->session->se_client, gdp); } gdp->gd_notify_types &= ops->notify_types; @@ -2335,6 +2334,45 @@ static struct nfsd4_operation nfsd4_ops[] = { }, }; +/** + * nfsd4_spo_must_allow - Determine if the compound op contains an + * operation that is allowed to be sent with machine credentials + * + * @rqstp: a pointer to the struct svc_rqst + * + * Checks to see if the compound contains a spo_must_allow op + * and confirms that it was sent with the proper machine creds. + */ + +bool nfsd4_spo_must_allow(struct svc_rqst *rqstp) +{ + struct nfsd4_compoundres *resp = rqstp->rq_resp; + struct nfsd4_compoundargs *argp = rqstp->rq_argp; + struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; + struct nfsd4_compound_state *cstate = &resp->cstate; + struct nfs4_op_map *allow = &cstate->clp->cl_spo_must_allow; + u32 opiter; + + if (!cstate->minorversion) + return false; + + if (cstate->spo_must_allowed == true) + return true; + + opiter = resp->opcnt; + while (opiter < argp->opcnt) { + this = &argp->ops[opiter++]; + if (test_bit(this->opnum, allow->u.longs) && + cstate->clp->cl_mach_cred && + nfsd4_mach_creds_match(cstate->clp, rqstp)) { + cstate->spo_must_allowed = true; + return true; + } + } + cstate->spo_must_allowed = false; + return false; +} + int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op) { struct nfsd4_operation *opdesc; diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 70d0b9b..8410ca2 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1200,27 +1200,6 @@ free_ol_stateid_reaplist(struct list_head *reaplist) } } -static void release_lockowner(struct nfs4_lockowner *lo) -{ - struct nfs4_client *clp = lo->lo_owner.so_client; - struct nfs4_ol_stateid *stp; - struct list_head reaplist; - - INIT_LIST_HEAD(&reaplist); - - spin_lock(&clp->cl_lock); - unhash_lockowner_locked(lo); - while (!list_empty(&lo->lo_owner.so_stateids)) { - stp = list_first_entry(&lo->lo_owner.so_stateids, - struct nfs4_ol_stateid, st_perstateowner); - WARN_ON(!unhash_lock_stateid(stp)); - put_ol_stateid_locked(stp, &reaplist); - } - spin_unlock(&clp->cl_lock); - free_ol_stateid_reaplist(&reaplist); - nfs4_put_stateowner(&lo->lo_owner); -} - static void release_open_stateid_locks(struct nfs4_ol_stateid *open_stp, struct list_head *reaplist) { @@ -1972,7 +1951,7 @@ static bool svc_rqst_integrity_protected(struct svc_rqst *rqstp) service == RPC_GSS_SVC_PRIVACY; } -static bool mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp) +bool nfsd4_mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp) { struct svc_cred *cr = &rqstp->rq_cred; @@ -2388,6 +2367,22 @@ nfsd4_exchange_id(struct svc_rqst *rqstp, switch (exid->spa_how) { case SP4_MACH_CRED: + exid->spo_must_enforce[0] = 0; + exid->spo_must_enforce[1] = ( + 1 << (OP_BIND_CONN_TO_SESSION - 32) | + 1 << (OP_EXCHANGE_ID - 32) | + 1 << (OP_CREATE_SESSION - 32) | + 1 << (OP_DESTROY_SESSION - 32) | + 1 << (OP_DESTROY_CLIENTID - 32)); + + exid->spo_must_allow[0] &= (1 << (OP_CLOSE) | + 1 << (OP_OPEN_DOWNGRADE) | + 1 << (OP_LOCKU) | + 1 << (OP_DELEGRETURN)); + + exid->spo_must_allow[1] &= ( + 1 << (OP_TEST_STATEID - 32) | + 1 << (OP_FREE_STATEID - 32)); if (!svc_rqst_integrity_protected(rqstp)) { status = nfserr_inval; goto out_nolock; @@ -2424,7 +2419,7 @@ nfsd4_exchange_id(struct svc_rqst *rqstp, status = nfserr_inval; goto out; } - if (!mach_creds_match(conf, rqstp)) { + if (!nfsd4_mach_creds_match(conf, rqstp)) { status = nfserr_wrong_cred; goto out; } @@ -2473,6 +2468,8 @@ out_new: goto out; } new->cl_minorversion = cstate->minorversion; + new->cl_spo_must_allow.u.words[0] = exid->spo_must_allow[0]; + new->cl_spo_must_allow.u.words[1] = exid->spo_must_allow[1]; gen_clid(new, nn); add_to_unconfirmed(new); @@ -2676,7 +2673,7 @@ nfsd4_create_session(struct svc_rqst *rqstp, if (conf) { status = nfserr_wrong_cred; - if (!mach_creds_match(conf, rqstp)) + if (!nfsd4_mach_creds_match(conf, rqstp)) goto out_free_conn; cs_slot = &conf->cl_cs_slot; status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0); @@ -2692,7 +2689,7 @@ nfsd4_create_session(struct svc_rqst *rqstp, goto out_free_conn; } status = nfserr_wrong_cred; - if (!mach_creds_match(unconf, rqstp)) + if (!nfsd4_mach_creds_match(unconf, rqstp)) goto out_free_conn; cs_slot = &unconf->cl_cs_slot; status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0); @@ -2801,7 +2798,7 @@ __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp, if (!session) goto out_no_session; status = nfserr_wrong_cred; - if (!mach_creds_match(session->se_client, rqstp)) + if (!nfsd4_mach_creds_match(session->se_client, rqstp)) goto out; status = nfsd4_map_bcts_dir(&bcts->dir); if (status) @@ -2848,7 +2845,7 @@ nfsd4_destroy_session(struct svc_rqst *r, if (!ses) goto out_client_lock; status = nfserr_wrong_cred; - if (!mach_creds_match(ses->se_client, r)) + if (!nfsd4_mach_creds_match(ses->se_client, r)) goto out_put_session; status = mark_session_dead_locked(ses, 1 + ref_held_by_me); if (status) @@ -3087,7 +3084,7 @@ nfsd4_destroy_clientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *csta status = nfserr_stale_clientid; goto out; } - if (!mach_creds_match(clp, rqstp)) { + if (!nfsd4_mach_creds_match(clp, rqstp)) { clp = NULL; status = nfserr_wrong_cred; goto out; @@ -3112,7 +3109,7 @@ nfsd4_reclaim_complete(struct svc_rqst *rqstp, struct nfsd4_compound_state *csta * We don't take advantage of the rca_one_fs case. * That's OK, it's optional, we can safely ignore it. */ - return nfs_ok; + return nfs_ok; } status = nfserr_complete_already; @@ -5945,6 +5942,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp, __be32 status; struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id); struct nfs4_client *clp; + LIST_HEAD (reaplist); dprintk("nfsd4_release_lockowner clientid: (%08x/%08x):\n", clid->cl_boot, clid->cl_id); @@ -5975,9 +5973,23 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp, nfs4_get_stateowner(sop); break; } + if (!lo) { + spin_unlock(&clp->cl_lock); + return status; + } + + unhash_lockowner_locked(lo); + while (!list_empty(&lo->lo_owner.so_stateids)) { + stp = list_first_entry(&lo->lo_owner.so_stateids, + struct nfs4_ol_stateid, + st_perstateowner); + WARN_ON(!unhash_lock_stateid(stp)); + put_ol_stateid_locked(stp, &reaplist); + } spin_unlock(&clp->cl_lock); - if (lo) - release_lockowner(lo); + free_ol_stateid_reaplist(&reaplist); + nfs4_put_stateowner(&lo->lo_owner); + return status; } diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 9df898b..0aa0236 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -1299,16 +1299,14 @@ nfsd4_decode_exchange_id(struct nfsd4_compoundargs *argp, break; case SP4_MACH_CRED: /* spo_must_enforce */ - READ_BUF(4); - dummy = be32_to_cpup(p++); - READ_BUF(dummy * 4); - p += dummy; - + status = nfsd4_decode_bitmap(argp, + exid->spo_must_enforce); + if (status) + goto out; /* spo_must_allow */ - READ_BUF(4); - dummy = be32_to_cpup(p++); - READ_BUF(dummy * 4); - p += dummy; + status = nfsd4_decode_bitmap(argp, exid->spo_must_allow); + if (status) + goto out; break; case SP4_SSV: /* ssp_ops */ @@ -2164,22 +2162,20 @@ nfsd4_encode_aclname(struct xdr_stream *xdr, struct svc_rqst *rqstp, } static inline __be32 -nfsd4_encode_layout_type(struct xdr_stream *xdr, enum pnfs_layouttype layout_type) +nfsd4_encode_layout_types(struct xdr_stream *xdr, u32 layout_types) { - __be32 *p; + __be32 *p; + unsigned long i = hweight_long(layout_types); - if (layout_type) { - p = xdr_reserve_space(xdr, 8); - if (!p) - return nfserr_resource; - *p++ = cpu_to_be32(1); - *p++ = cpu_to_be32(layout_type); - } else { - p = xdr_reserve_space(xdr, 4); - if (!p) - return nfserr_resource; - *p++ = cpu_to_be32(0); - } + p = xdr_reserve_space(xdr, 4 + 4 * i); + if (!p) + return nfserr_resource; + + *p++ = cpu_to_be32(i); + + for (i = LAYOUT_NFSV4_1_FILES; i < LAYOUT_TYPE_MAX; ++i) + if (layout_types & (1 << i)) + *p++ = cpu_to_be32(i); return 0; } @@ -2754,13 +2750,13 @@ out_acl: } #ifdef CONFIG_NFSD_PNFS if (bmval1 & FATTR4_WORD1_FS_LAYOUT_TYPES) { - status = nfsd4_encode_layout_type(xdr, exp->ex_layout_type); + status = nfsd4_encode_layout_types(xdr, exp->ex_layout_types); if (status) goto out; } if (bmval2 & FATTR4_WORD2_LAYOUT_TYPES) { - status = nfsd4_encode_layout_type(xdr, exp->ex_layout_type); + status = nfsd4_encode_layout_types(xdr, exp->ex_layout_types); if (status) goto out; } @@ -3867,14 +3863,6 @@ nfsd4_encode_write(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_w return nfserr; } -static const u32 nfs4_minimal_spo_must_enforce[2] = { - [1] = 1 << (OP_BIND_CONN_TO_SESSION - 32) | - 1 << (OP_EXCHANGE_ID - 32) | - 1 << (OP_CREATE_SESSION - 32) | - 1 << (OP_DESTROY_SESSION - 32) | - 1 << (OP_DESTROY_CLIENTID - 32) -}; - static __be32 nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_exchange_id *exid) @@ -3885,6 +3873,7 @@ nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr, char *server_scope; int major_id_sz; int server_scope_sz; + int status = 0; uint64_t minor_id = 0; if (nfserr) @@ -3913,18 +3902,20 @@ nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr, case SP4_NONE: break; case SP4_MACH_CRED: - /* spo_must_enforce, spo_must_allow */ - p = xdr_reserve_space(xdr, 16); - if (!p) - return nfserr_resource; - /* spo_must_enforce bitmap: */ - *p++ = cpu_to_be32(2); - *p++ = cpu_to_be32(nfs4_minimal_spo_must_enforce[0]); - *p++ = cpu_to_be32(nfs4_minimal_spo_must_enforce[1]); - /* empty spo_must_allow bitmap: */ - *p++ = cpu_to_be32(0); - + status = nfsd4_encode_bitmap(xdr, + exid->spo_must_enforce[0], + exid->spo_must_enforce[1], + exid->spo_must_enforce[2]); + if (status) + goto out; + /* spo_must_allow bitmap: */ + status = nfsd4_encode_bitmap(xdr, + exid->spo_must_allow[0], + exid->spo_must_allow[1], + exid->spo_must_allow[2]); + if (status) + goto out; break; default: WARN_ON_ONCE(1); @@ -3951,6 +3942,8 @@ nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr, /* Implementation id */ *p++ = cpu_to_be32(0); /* zero length nfs_impl_id4 array */ return 0; +out: + return status; } static __be32 diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h index cf98052..9446849 100644 --- a/fs/nfsd/nfsd.h +++ b/fs/nfsd/nfsd.h @@ -124,6 +124,7 @@ void nfs4_state_shutdown_net(struct net *net); void nfs4_reset_lease(time_t leasetime); int nfs4_reset_recoverydir(char *recdir); char * nfs4_recoverydir(void); +bool nfsd4_spo_must_allow(struct svc_rqst *rqstp); #else static inline int nfsd4_init_slabs(void) { return 0; } static inline void nfsd4_free_slabs(void) { } @@ -134,6 +135,10 @@ static inline void nfs4_state_shutdown_net(struct net *net) { } static inline void nfs4_reset_lease(time_t leasetime) { } static inline int nfs4_reset_recoverydir(char *recdir) { return 0; } static inline char * nfs4_recoverydir(void) {return NULL; } +static inline bool nfsd4_spo_must_allow(struct svc_rqst *rqstp) +{ + return false; +} #endif /* diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c index a891944..cfe7500 100644 --- a/fs/nfsd/nfsfh.c +++ b/fs/nfsd/nfsfh.c @@ -59,14 +59,20 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry) * the write call). */ static inline __be32 -nfsd_mode_check(struct svc_rqst *rqstp, umode_t mode, umode_t requested) +nfsd_mode_check(struct svc_rqst *rqstp, struct dentry *dentry, + umode_t requested) { - mode &= S_IFMT; + umode_t mode = d_inode(dentry)->i_mode & S_IFMT; if (requested == 0) /* the caller doesn't care */ return nfs_ok; - if (mode == requested) + if (mode == requested) { + if (mode == S_IFDIR && !d_can_lookup(dentry)) { + WARN_ON_ONCE(1); + return nfserr_notdir; + } return nfs_ok; + } /* * v4 has an error more specific than err_notdir which we should * return in preference to err_notdir: @@ -298,7 +304,7 @@ out: * that it expects something not of the given type. * * @access is formed from the NFSD_MAY_* constants defined in - * include/linux/nfsd/nfsd.h. + * fs/nfsd/vfs.h. */ __be32 fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, int access) @@ -340,7 +346,7 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, int access) if (error) goto out; - error = nfsd_mode_check(rqstp, d_inode(dentry)->i_mode, type); + error = nfsd_mode_check(rqstp, dentry, type); if (error) goto out; @@ -533,7 +539,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry, * the reference filehandle (if it is in the same export) * or the export options. */ - set_version_and_fsid_type(fhp, exp, ref_fh); + set_version_and_fsid_type(fhp, exp, ref_fh); if (ref_fh == fhp) fh_put(ref_fh); diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c index 4cd78ef..e921476 100644 --- a/fs/nfsd/nfsproc.c +++ b/fs/nfsd/nfsproc.c @@ -251,9 +251,6 @@ nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp, /* Check for NFSD_MAY_WRITE in nfsd_create if necessary */ - nfserr = nfserr_acces; - if (!argp->len) - goto done; nfserr = nfserr_exist; if (isdotent(argp->name, argp->len)) goto done; @@ -362,8 +359,8 @@ nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp, nfserr = 0; if (!inode) { /* File doesn't exist. Create it and set attrs */ - nfserr = nfsd_create(rqstp, dirfhp, argp->name, argp->len, - attr, type, rdev, newfhp); + nfserr = nfsd_create_locked(rqstp, dirfhp, argp->name, + argp->len, attr, type, rdev, newfhp); } else if (type == S_IFREG) { dprintk("nfsd: existing %s, valid=%x, size=%ld\n", argp->name, attr->ia_valid, (long) attr->ia_size); diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c index 79d964a..41b468a 100644 --- a/fs/nfsd/nfsxdr.c +++ b/fs/nfsd/nfsxdr.c @@ -240,7 +240,7 @@ nfssvc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p, || !(p = decode_filename(p, &args->name, &args->len))) return 0; - return xdr_argsize_check(rqstp, p); + return xdr_argsize_check(rqstp, p); } int diff --git a/fs/nfsd/pnfs.h b/fs/nfsd/pnfs.h index 7d073b9..0c2a716 100644 --- a/fs/nfsd/pnfs.h +++ b/fs/nfsd/pnfs.h @@ -21,6 +21,7 @@ struct nfsd4_layout_ops { u32 notify_types; __be32 (*proc_getdeviceinfo)(struct super_block *sb, + struct svc_rqst *rqstp, struct nfs4_client *clp, struct nfsd4_getdeviceinfo *gdevp); __be32 (*encode_getdeviceinfo)(struct xdr_stream *xdr, @@ -44,6 +45,9 @@ extern const struct nfsd4_layout_ops bl_layout_ops; #ifdef CONFIG_NFSD_SCSILAYOUT extern const struct nfsd4_layout_ops scsi_layout_ops; #endif +#ifdef CONFIG_NFSD_FLEXFILELAYOUT +extern const struct nfsd4_layout_ops ff_layout_ops; +#endif __be32 nfsd4_preprocess_layout_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, stateid_t *stateid, diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 64053ea..b95adf9 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -345,6 +345,7 @@ struct nfs4_client { u32 cl_exchange_flags; /* number of rpc's in progress over an associated session: */ atomic_t cl_refcount; + struct nfs4_op_map cl_spo_must_allow; /* for nfs41 callbacks */ /* We currently support a single back channel with a single slot */ diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 6fbd81e..ba944123 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1135,96 +1135,37 @@ nfsd_check_ignore_resizing(struct iattr *iap) iap->ia_valid &= ~ATTR_SIZE; } -/* - * Create a file (regular, directory, device, fifo); UNIX sockets - * not yet implemented. - * If the response fh has been verified, the parent directory should - * already be locked. Note that the parent directory is left locked. - * - * N.B. Every call to nfsd_create needs an fh_put for _both_ fhp and resfhp - */ +/* The parent directory should already be locked: */ __be32 -nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, +nfsd_create_locked(struct svc_rqst *rqstp, struct svc_fh *fhp, char *fname, int flen, struct iattr *iap, int type, dev_t rdev, struct svc_fh *resfhp) { - struct dentry *dentry, *dchild = NULL; + struct dentry *dentry, *dchild; struct inode *dirp; __be32 err; __be32 err2; int host_err; - err = nfserr_perm; - if (!flen) - goto out; - err = nfserr_exist; - if (isdotent(fname, flen)) - goto out; - - err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE); - if (err) - goto out; - dentry = fhp->fh_dentry; dirp = d_inode(dentry); - err = nfserr_notdir; - if (!dirp->i_op->lookup) - goto out; - /* - * Check whether the response file handle has been verified yet. - * If it has, the parent directory should already be locked. - */ - if (!resfhp->fh_dentry) { - host_err = fh_want_write(fhp); - if (host_err) - goto out_nfserr; - - /* called from nfsd_proc_mkdir, or possibly nfsd3_proc_create */ - fh_lock_nested(fhp, I_MUTEX_PARENT); - dchild = lookup_one_len(fname, dentry, flen); - host_err = PTR_ERR(dchild); - if (IS_ERR(dchild)) - goto out_nfserr; - err = fh_compose(resfhp, fhp->fh_export, dchild, fhp); - if (err) - goto out; - } else { - /* called from nfsd_proc_create */ - dchild = dget(resfhp->fh_dentry); - if (!fhp->fh_locked) { - /* not actually possible */ - printk(KERN_ERR - "nfsd_create: parent %pd2 not locked!\n", + dchild = dget(resfhp->fh_dentry); + if (!fhp->fh_locked) { + WARN_ONCE(1, "nfsd_create: parent %pd2 not locked!\n", dentry); - err = nfserr_io; - goto out; - } - } - /* - * Make sure the child dentry is still negative ... - */ - err = nfserr_exist; - if (d_really_is_positive(dchild)) { - dprintk("nfsd_create: dentry %pd/%pd not negative!\n", - dentry, dchild); - goto out; + err = nfserr_io; + goto out; } + err = nfsd_permission(rqstp, fhp->fh_export, dentry, NFSD_MAY_CREATE); + if (err) + goto out; + if (!(iap->ia_valid & ATTR_MODE)) iap->ia_mode = 0; iap->ia_mode = (iap->ia_mode & S_IALLUGO) | type; - err = nfserr_inval; - if (!S_ISREG(type) && !S_ISDIR(type) && !special_file(type)) { - printk(KERN_WARNING "nfsd: bad file type %o in nfsd_create\n", - type); - goto out; - } - - /* - * Get the dir op function pointer. - */ err = 0; host_err = 0; switch (type) { @@ -1242,6 +1183,10 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, case S_IFSOCK: host_err = vfs_mknod(dirp, dchild, iap->ia_mode, rdev); break; + default: + printk(KERN_WARNING "nfsd: bad file type %o in nfsd_create\n", + type); + host_err = -EINVAL; } if (host_err < 0) goto out_nfserr; @@ -1251,7 +1196,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, /* * nfsd_create_setattr already committed the child. Transactional * filesystems had a chance to commit changes for both parent and - * child * simultaneously making the following commit_metadata a + * child simultaneously making the following commit_metadata a * noop. */ err2 = nfserrno(commit_metadata(fhp)); @@ -1263,8 +1208,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, if (!err) err = fh_update(resfhp); out: - if (dchild && !IS_ERR(dchild)) - dput(dchild); + dput(dchild); return err; out_nfserr: @@ -1272,6 +1216,50 @@ out_nfserr: goto out; } +/* + * Create a filesystem object (regular, directory, special). + * Note that the parent directory is left locked. + * + * N.B. Every call to nfsd_create needs an fh_put for _both_ fhp and resfhp + */ +__be32 +nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, + char *fname, int flen, struct iattr *iap, + int type, dev_t rdev, struct svc_fh *resfhp) +{ + struct dentry *dentry, *dchild = NULL; + struct inode *dirp; + __be32 err; + int host_err; + + if (isdotent(fname, flen)) + return nfserr_exist; + + err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_NOP); + if (err) + return err; + + dentry = fhp->fh_dentry; + dirp = d_inode(dentry); + + host_err = fh_want_write(fhp); + if (host_err) + return nfserrno(host_err); + + fh_lock_nested(fhp, I_MUTEX_PARENT); + dchild = lookup_one_len(fname, dentry, flen); + host_err = PTR_ERR(dchild); + if (IS_ERR(dchild)) + return nfserrno(host_err); + err = fh_compose(resfhp, fhp->fh_export, dchild, fhp); + if (err) { + dput(dchild); + return err; + } + return nfsd_create_locked(rqstp, fhp, fname, flen, iap, type, + rdev, resfhp); +} + #ifdef CONFIG_NFSD_V3 /* @@ -1304,12 +1292,6 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, dentry = fhp->fh_dentry; dirp = d_inode(dentry); - /* Get all the sanity checks out of the way before - * we lock the parent. */ - err = nfserr_notdir; - if (!dirp->i_op->lookup) - goto out; - host_err = fh_want_write(fhp); if (host_err) goto out_nfserr; diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h index 2d573ec..3cbb1b3 100644 --- a/fs/nfsd/vfs.h +++ b/fs/nfsd/vfs.h @@ -59,6 +59,9 @@ __be32 nfsd4_vfs_fallocate(struct svc_rqst *, struct svc_fh *, __be32 nfsd4_clone_file_range(struct file *, u64, struct file *, u64, u64); #endif /* CONFIG_NFSD_V4 */ +__be32 nfsd_create_locked(struct svc_rqst *, struct svc_fh *, + char *name, int len, struct iattr *attrs, + int type, dev_t rdev, struct svc_fh *res); __be32 nfsd_create(struct svc_rqst *, struct svc_fh *, char *name, int len, struct iattr *attrs, int type, dev_t rdev, struct svc_fh *res); diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index d955481..beea0c5 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -59,6 +59,7 @@ struct nfsd4_compound_state { struct nfsd4_session *session; struct nfsd4_slot *slot; int data_offset; + bool spo_must_allowed; size_t iovlen; u32 minorversion; __be32 status; @@ -403,6 +404,8 @@ struct nfsd4_exchange_id { clientid_t clientid; u32 seqid; int spa_how; + u32 spo_must_enforce[3]; + u32 spo_must_allow[3]; }; struct nfsd4_sequence { @@ -654,6 +657,8 @@ set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp) } + +bool nfsd4_mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp); int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *); int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *, struct nfsd4_compoundargs *); diff --git a/fs/ubifs/gc.c b/fs/ubifs/gc.c index 9718da8..821b348 100644 --- a/fs/ubifs/gc.c +++ b/fs/ubifs/gc.c @@ -100,10 +100,6 @@ static int switch_gc_head(struct ubifs_info *c) if (err) return err; - err = ubifs_wbuf_sync_nolock(wbuf); - if (err) - return err; - err = ubifs_add_bud_to_log(c, GCHD, gc_lnum, 0); if (err) return err; diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 7034995..4ec0510 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -520,19 +520,19 @@ static int init_constants_early(struct ubifs_info *c) c->max_write_shift = fls(c->max_write_size) - 1; if (c->leb_size < UBIFS_MIN_LEB_SZ) { - ubifs_err(c, "too small LEBs (%d bytes), min. is %d bytes", - c->leb_size, UBIFS_MIN_LEB_SZ); + ubifs_errc(c, "too small LEBs (%d bytes), min. is %d bytes", + c->leb_size, UBIFS_MIN_LEB_SZ); return -EINVAL; } if (c->leb_cnt < UBIFS_MIN_LEB_CNT) { - ubifs_err(c, "too few LEBs (%d), min. is %d", - c->leb_cnt, UBIFS_MIN_LEB_CNT); + ubifs_errc(c, "too few LEBs (%d), min. is %d", + c->leb_cnt, UBIFS_MIN_LEB_CNT); return -EINVAL; } if (!is_power_of_2(c->min_io_size)) { - ubifs_err(c, "bad min. I/O size %d", c->min_io_size); + ubifs_errc(c, "bad min. I/O size %d", c->min_io_size); return -EINVAL; } @@ -543,8 +543,8 @@ static int init_constants_early(struct ubifs_info *c) if (c->max_write_size < c->min_io_size || c->max_write_size % c->min_io_size || !is_power_of_2(c->max_write_size)) { - ubifs_err(c, "bad write buffer size %d for %d min. I/O unit", - c->max_write_size, c->min_io_size); + ubifs_errc(c, "bad write buffer size %d for %d min. I/O unit", + c->max_write_size, c->min_io_size); return -EINVAL; } @@ -2108,8 +2108,9 @@ static struct dentry *ubifs_mount(struct file_system_type *fs_type, int flags, */ ubi = open_ubi(name, UBI_READONLY); if (IS_ERR(ubi)) { - pr_err("UBIFS error (pid: %d): cannot open \"%s\", error %d", - current->pid, name, (int)PTR_ERR(ubi)); + if (!(flags & MS_SILENT)) + pr_err("UBIFS error (pid: %d): cannot open \"%s\", error %d", + current->pid, name, (int)PTR_ERR(ubi)); return ERR_CAST(ubi); } diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index ddf9f6b9..4617d45 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -1783,8 +1783,8 @@ void ubifs_err(const struct ubifs_info *c, const char *fmt, ...); __printf(2, 3) void ubifs_warn(const struct ubifs_info *c, const char *fmt, ...); /* - * A variant of 'ubifs_err()' which takes the UBIFS file-sytem description - * object as an argument. + * A conditional variant of 'ubifs_err()' which doesn't output anything + * if probing (ie. MS_SILENT set). */ #define ubifs_errc(c, fmt, ...) \ do { \ diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c index b5fc279..e237811 100644 --- a/fs/ubifs/xattr.c +++ b/fs/ubifs/xattr.c @@ -592,19 +592,19 @@ static int ubifs_xattr_set(const struct xattr_handler *handler, return __ubifs_removexattr(inode, name); } -const struct xattr_handler ubifs_user_xattr_handler = { +static const struct xattr_handler ubifs_user_xattr_handler = { .prefix = XATTR_USER_PREFIX, .get = ubifs_xattr_get, .set = ubifs_xattr_set, }; -const struct xattr_handler ubifs_trusted_xattr_handler = { +static const struct xattr_handler ubifs_trusted_xattr_handler = { .prefix = XATTR_TRUSTED_PREFIX, .get = ubifs_xattr_get, .set = ubifs_xattr_set, }; -const struct xattr_handler ubifs_security_xattr_handler = { +static const struct xattr_handler ubifs_security_xattr_handler = { .prefix = XATTR_SECURITY_PREFIX, .get = ubifs_xattr_get, .set = ubifs_xattr_set, diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index 3542d94..52c2885 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -121,5 +121,4 @@ xfs-$(CONFIG_XFS_RT) += xfs_rtalloc.o xfs-$(CONFIG_XFS_POSIX_ACL) += xfs_acl.o xfs-$(CONFIG_SYSCTL) += xfs_sysctl.o xfs-$(CONFIG_COMPAT) += xfs_ioctl32.o -xfs-$(CONFIG_NFSD_BLOCKLAYOUT) += xfs_pnfs.o -xfs-$(CONFIG_NFSD_SCSILAYOUT) += xfs_pnfs.o +xfs-$(CONFIG_EXPORTFS_BLOCK_OPS) += xfs_pnfs.o diff --git a/fs/xfs/xfs_export.c b/fs/xfs/xfs_export.c index a1b2dd8..fe1bfee 100644 --- a/fs/xfs/xfs_export.c +++ b/fs/xfs/xfs_export.c @@ -246,7 +246,7 @@ const struct export_operations xfs_export_operations = { .fh_to_parent = xfs_fs_fh_to_parent, .get_parent = xfs_fs_get_parent, .commit_metadata = xfs_fs_nfs_commit_metadata, -#ifdef CONFIG_NFSD_BLOCKLAYOUT +#ifdef CONFIG_EXPORTFS_BLOCK_OPS .get_uuid = xfs_fs_get_uuid, .map_blocks = xfs_fs_map_blocks, .commit_blocks = xfs_fs_commit_blocks, diff --git a/fs/xfs/xfs_pnfs.h b/fs/xfs/xfs_pnfs.h index 93f7485..e8339f7 100644 --- a/fs/xfs/xfs_pnfs.h +++ b/fs/xfs/xfs_pnfs.h @@ -1,7 +1,7 @@ #ifndef _XFS_PNFS_H #define _XFS_PNFS_H 1 -#if defined(CONFIG_NFSD_BLOCKLAYOUT) || defined(CONFIG_NFSD_SCSILAYOUT) +#ifdef CONFIG_EXPORTFS_BLOCK_OPS int xfs_fs_get_uuid(struct super_block *sb, u8 *buf, u32 *len, u64 *offset); int xfs_fs_map_blocks(struct inode *inode, loff_t offset, u64 length, struct iomap *iomap, bool write, u32 *device_generation); @@ -15,5 +15,5 @@ xfs_break_layouts(struct inode *inode, uint *iolock, bool with_imutex) { return 0; } -#endif /* CONFIG_NFSD_PNFS */ +#endif /* CONFIG_EXPORTFS_BLOCK_OPS */ #endif /* _XFS_PNFS_H */ |
