diff options
Diffstat (limited to 'arch/parisc/kernel/sys_parisc.c')
| -rw-r--r-- | arch/parisc/kernel/sys_parisc.c | 46 |
1 files changed, 26 insertions, 20 deletions
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index 378a754..43b308c 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -70,12 +70,18 @@ static inline unsigned long COLOR_ALIGN(unsigned long addr, * Top of mmap area (just below the process stack). */ -static unsigned long mmap_upper_limit(void) +/* + * When called from arch_get_unmapped_area(), rlim_stack will be NULL, + * indicating that "current" should be used instead of a passed-in + * value from the exec bprm as done with arch_pick_mmap_layout(). + */ +static unsigned long mmap_upper_limit(struct rlimit *rlim_stack) { unsigned long stack_base; /* Limit stack size - see setup_arg_pages() in fs/exec.c */ - stack_base = rlimit_max(RLIMIT_STACK); + stack_base = rlim_stack ? rlim_stack->rlim_max + : rlimit_max(RLIMIT_STACK); if (stack_base > STACK_SIZE_MAX) stack_base = STACK_SIZE_MAX; @@ -127,7 +133,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, info.flags = 0; info.length = len; info.low_limit = mm->mmap_legacy_base; - info.high_limit = mmap_upper_limit(); + info.high_limit = mmap_upper_limit(NULL); info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0; info.align_offset = shared_align_offset(last_mmap, pgoff); addr = vm_unmapped_area(&info); @@ -250,10 +256,10 @@ static unsigned long mmap_legacy_base(void) * This function, called very early during the creation of a new * process VM image, sets up which VM layout function to use: */ -void arch_pick_mmap_layout(struct mm_struct *mm) +void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack) { mm->mmap_legacy_base = mmap_legacy_base(); - mm->mmap_base = mmap_upper_limit(); + mm->mmap_base = mmap_upper_limit(rlim_stack); if (mmap_is_legacy()) { mm->mmap_base = mm->mmap_legacy_base; @@ -270,8 +276,8 @@ asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len, { /* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE we have. */ - return sys_mmap_pgoff(addr, len, prot, flags, fd, - pgoff >> (PAGE_SHIFT - 12)); + return ksys_mmap_pgoff(addr, len, prot, flags, fd, + pgoff >> (PAGE_SHIFT - 12)); } asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, @@ -279,7 +285,7 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, unsigned long offset) { if (!(offset & ~PAGE_MASK)) { - return sys_mmap_pgoff(addr, len, prot, flags, fd, + return ksys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); } else { return -EINVAL; @@ -292,24 +298,24 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, asmlinkage long parisc_truncate64(const char __user * path, unsigned int high, unsigned int low) { - return sys_truncate(path, (long)high << 32 | low); + return ksys_truncate(path, (long)high << 32 | low); } asmlinkage long parisc_ftruncate64(unsigned int fd, unsigned int high, unsigned int low) { - return sys_ftruncate(fd, (long)high << 32 | low); + return ksys_ftruncate(fd, (long)high << 32 | low); } /* stubs for the benefit of the syscall_table since truncate64 and truncate * are identical on LP64 */ asmlinkage long sys_truncate64(const char __user * path, unsigned long length) { - return sys_truncate(path, length); + return ksys_truncate(path, length); } asmlinkage long sys_ftruncate64(unsigned int fd, unsigned long length) { - return sys_ftruncate(fd, length); + return ksys_ftruncate(fd, length); } asmlinkage long sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg) { @@ -320,7 +326,7 @@ asmlinkage long sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg asmlinkage long parisc_truncate64(const char __user * path, unsigned int high, unsigned int low) { - return sys_truncate64(path, (loff_t)high << 32 | low); + return ksys_truncate(path, (loff_t)high << 32 | low); } asmlinkage long parisc_ftruncate64(unsigned int fd, @@ -333,26 +339,26 @@ asmlinkage long parisc_ftruncate64(unsigned int fd, asmlinkage ssize_t parisc_pread64(unsigned int fd, char __user *buf, size_t count, unsigned int high, unsigned int low) { - return sys_pread64(fd, buf, count, (loff_t)high << 32 | low); + return ksys_pread64(fd, buf, count, (loff_t)high << 32 | low); } asmlinkage ssize_t parisc_pwrite64(unsigned int fd, const char __user *buf, size_t count, unsigned int high, unsigned int low) { - return sys_pwrite64(fd, buf, count, (loff_t)high << 32 | low); + return ksys_pwrite64(fd, buf, count, (loff_t)high << 32 | low); } asmlinkage ssize_t parisc_readahead(int fd, unsigned int high, unsigned int low, size_t count) { - return sys_readahead(fd, (loff_t)high << 32 | low, count); + return ksys_readahead(fd, (loff_t)high << 32 | low, count); } asmlinkage long parisc_fadvise64_64(int fd, unsigned int high_off, unsigned int low_off, unsigned int high_len, unsigned int low_len, int advice) { - return sys_fadvise64_64(fd, (loff_t)high_off << 32 | low_off, + return ksys_fadvise64_64(fd, (loff_t)high_off << 32 | low_off, (loff_t)high_len << 32 | low_len, advice); } @@ -360,15 +366,15 @@ asmlinkage long parisc_sync_file_range(int fd, u32 hi_off, u32 lo_off, u32 hi_nbytes, u32 lo_nbytes, unsigned int flags) { - return sys_sync_file_range(fd, (loff_t)hi_off << 32 | lo_off, + return ksys_sync_file_range(fd, (loff_t)hi_off << 32 | lo_off, (loff_t)hi_nbytes << 32 | lo_nbytes, flags); } asmlinkage long parisc_fallocate(int fd, int mode, u32 offhi, u32 offlo, u32 lenhi, u32 lenlo) { - return sys_fallocate(fd, mode, ((u64)offhi << 32) | offlo, - ((u64)lenhi << 32) | lenlo); + return ksys_fallocate(fd, mode, ((u64)offhi << 32) | offlo, + ((u64)lenhi << 32) | lenlo); } long parisc_personality(unsigned long personality) |
