diff options
Diffstat (limited to 'fs/minix')
| -rw-r--r-- | fs/minix/bitmap.c | 69 | ||||
| -rw-r--r-- | fs/minix/dir.c | 162 | ||||
| -rw-r--r-- | fs/minix/inode.c | 49 | ||||
| -rw-r--r-- | fs/minix/itree_common.c | 16 | ||||
| -rw-r--r-- | fs/minix/itree_v1.c | 4 | ||||
| -rw-r--r-- | fs/minix/itree_v2.c | 7 | ||||
| -rw-r--r-- | fs/minix/minix.h | 12 |
7 files changed, 208 insertions, 111 deletions
diff --git a/fs/minix/bitmap.c b/fs/minix/bitmap.c index df6b107..c4a554d 100644 --- a/fs/minix/bitmap.c +++ b/fs/minix/bitmap.c @@ -26,14 +26,14 @@ static unsigned long count_free(struct buffer_head *map[], unsigned numblocks, _ for (i=0; i<numblocks-1; i++) { if (!(bh=map[i])) return(0); - for (j=0; j<BLOCK_SIZE; j++) + for (j=0; j<bh->b_size; j++) sum += nibblemap[bh->b_data[j] & 0xf] + nibblemap[(bh->b_data[j]>>4) & 0xf]; } if (numblocks==0 || !(bh=map[numblocks-1])) return(0); - i = ((numbits-(numblocks-1)*BLOCK_SIZE*8)/16)*2; + i = ((numbits - (numblocks-1) * bh->b_size * 8) / 16) * 2; for (j=0; j<i; j++) { sum += nibblemap[bh->b_data[j] & 0xf] + nibblemap[(bh->b_data[j]>>4) & 0xf]; @@ -48,28 +48,29 @@ static unsigned long count_free(struct buffer_head *map[], unsigned numblocks, _ return(sum); } -void minix_free_block(struct inode * inode, int block) +void minix_free_block(struct inode *inode, unsigned long block) { - struct super_block * sb = inode->i_sb; - struct minix_sb_info * sbi = minix_sb(sb); - struct buffer_head * bh; - unsigned int bit,zone; + struct super_block *sb = inode->i_sb; + struct minix_sb_info *sbi = minix_sb(sb); + struct buffer_head *bh; + int k = sb->s_blocksize_bits + 3; + unsigned long bit, zone; if (block < sbi->s_firstdatazone || block >= sbi->s_nzones) { printk("Trying to free block not in datazone\n"); return; } zone = block - sbi->s_firstdatazone + 1; - bit = zone & 8191; - zone >>= 13; + bit = zone & ((1<<k) - 1); + zone >>= k; if (zone >= sbi->s_zmap_blocks) { printk("minix_free_block: nonexistent bitmap buffer\n"); return; } bh = sbi->s_zmap[zone]; lock_kernel(); - if (!minix_test_and_clear_bit(bit,bh->b_data)) - printk("free_block (%s:%d): bit already cleared\n", + if (!minix_test_and_clear_bit(bit, bh->b_data)) + printk("minix_free_block (%s:%lu): bit already cleared\n", sb->s_id, block); unlock_kernel(); mark_buffer_dirty(bh); @@ -79,6 +80,7 @@ void minix_free_block(struct inode * inode, int block) int minix_new_block(struct inode * inode) { struct minix_sb_info *sbi = minix_sb(inode->i_sb); + int bits_per_zone = 8 * inode->i_sb->s_blocksize; int i; for (i = 0; i < sbi->s_zmap_blocks; i++) { @@ -86,11 +88,12 @@ int minix_new_block(struct inode * inode) int j; lock_kernel(); - if ((j = minix_find_first_zero_bit(bh->b_data, 8192)) < 8192) { - minix_set_bit(j,bh->b_data); + j = minix_find_first_zero_bit(bh->b_data, bits_per_zone); + if (j < bits_per_zone) { + minix_set_bit(j, bh->b_data); unlock_kernel(); mark_buffer_dirty(bh); - j += i*8192 + sbi->s_firstdatazone-1; + j += i * bits_per_zone + sbi->s_firstdatazone-1; if (j < sbi->s_firstdatazone || j >= sbi->s_nzones) break; return j; @@ -137,6 +140,7 @@ minix_V2_raw_inode(struct super_block *sb, ino_t ino, struct buffer_head **bh) int block; struct minix_sb_info *sbi = minix_sb(sb); struct minix2_inode *p; + int minix2_inodes_per_block = sb->s_blocksize / sizeof(struct minix2_inode); *bh = NULL; if (!ino || ino > sbi->s_ninodes) { @@ -146,14 +150,14 @@ minix_V2_raw_inode(struct super_block *sb, ino_t ino, struct buffer_head **bh) } ino--; block = 2 + sbi->s_imap_blocks + sbi->s_zmap_blocks + - ino / MINIX2_INODES_PER_BLOCK; + ino / minix2_inodes_per_block; *bh = sb_bread(sb, block); if (!*bh) { printk("Unable to read inode block\n"); return NULL; } p = (void *)(*bh)->b_data; - return p + ino % MINIX2_INODES_PER_BLOCK; + return p + ino % minix2_inodes_per_block; } /* Clear the link count and mode of a deleted inode on disk. */ @@ -185,26 +189,30 @@ static void minix_clear_inode(struct inode *inode) void minix_free_inode(struct inode * inode) { + struct super_block *sb = inode->i_sb; struct minix_sb_info *sbi = minix_sb(inode->i_sb); - struct buffer_head * bh; - unsigned long ino; + struct buffer_head *bh; + int k = sb->s_blocksize_bits + 3; + unsigned long ino, bit; ino = inode->i_ino; if (ino < 1 || ino > sbi->s_ninodes) { printk("minix_free_inode: inode 0 or nonexistent inode\n"); goto out; } - if ((ino >> 13) >= sbi->s_imap_blocks) { + bit = ino & ((1<<k) - 1); + ino >>= k; + if (ino >= sbi->s_imap_blocks) { printk("minix_free_inode: nonexistent imap in superblock\n"); goto out; } minix_clear_inode(inode); /* clear on-disk copy */ - bh = sbi->s_imap[ino >> 13]; + bh = sbi->s_imap[ino]; lock_kernel(); - if (!minix_test_and_clear_bit(ino & 8191, bh->b_data)) - printk("minix_free_inode: bit %lu already cleared\n", ino); + if (!minix_test_and_clear_bit(bit, bh->b_data)) + printk("minix_free_inode: bit %lu already cleared\n", bit); unlock_kernel(); mark_buffer_dirty(bh); out: @@ -217,35 +225,38 @@ struct inode * minix_new_inode(const struct inode * dir, int * error) struct minix_sb_info *sbi = minix_sb(sb); struct inode *inode = new_inode(sb); struct buffer_head * bh; - int i,j; + int bits_per_zone = 8 * sb->s_blocksize; + unsigned long j; + int i; if (!inode) { *error = -ENOMEM; return NULL; } - j = 8192; + j = bits_per_zone; bh = NULL; *error = -ENOSPC; lock_kernel(); for (i = 0; i < sbi->s_imap_blocks; i++) { bh = sbi->s_imap[i]; - if ((j = minix_find_first_zero_bit(bh->b_data, 8192)) < 8192) + j = minix_find_first_zero_bit(bh->b_data, bits_per_zone); + if (j < bits_per_zone) break; } - if (!bh || j >= 8192) { + if (!bh || j >= bits_per_zone) { unlock_kernel(); iput(inode); return NULL; } - if (minix_test_and_set_bit(j,bh->b_data)) { /* shouldn't happen */ - printk("new_inode: bit already set\n"); + if (minix_test_and_set_bit(j, bh->b_data)) { /* shouldn't happen */ unlock_kernel(); + printk("minix_new_inode: bit already set\n"); iput(inode); return NULL; } unlock_kernel(); mark_buffer_dirty(bh); - j += i*8192; + j += i * bits_per_zone; if (!j || j > sbi->s_ninodes) { iput(inode); return NULL; diff --git a/fs/minix/dir.c b/fs/minix/dir.c index ab782c4..cb4cb57 100644 --- a/fs/minix/dir.c +++ b/fs/minix/dir.c @@ -4,6 +4,8 @@ * Copyright (C) 1991, 1992 Linus Torvalds * * minix directory handling functions + * + * Updated to filesystem version 3 by Daniel Aragones */ #include "minix.h" @@ -11,6 +13,7 @@ #include <linux/smp_lock.h> typedef struct minix_dir_entry minix_dirent; +typedef struct minix3_dir_entry minix3_dirent; static int minix_readdir(struct file *, void *, filldir_t); @@ -89,6 +92,8 @@ static int minix_readdir(struct file * filp, void * dirent, filldir_t filldir) unsigned long npages = dir_pages(inode); struct minix_sb_info *sbi = minix_sb(sb); unsigned chunk_size = sbi->s_dirsize; + char *name; + __u32 inumber; lock_kernel(); @@ -105,16 +110,24 @@ static int minix_readdir(struct file * filp, void * dirent, filldir_t filldir) kaddr = (char *)page_address(page); p = kaddr+offset; limit = kaddr + minix_last_byte(inode, n) - chunk_size; - for ( ; p <= limit ; p = minix_next_entry(p, sbi)) { - minix_dirent *de = (minix_dirent *)p; - if (de->inode) { + for ( ; p <= limit; p = minix_next_entry(p, sbi)) { + if (sbi->s_version == MINIX_V3) { + minix3_dirent *de3 = (minix3_dirent *)p; + name = de3->name; + inumber = de3->inode; + } else { + minix_dirent *de = (minix_dirent *)p; + name = de->name; + inumber = de->inode; + } + if (inumber) { int over; - unsigned l = strnlen(de->name,sbi->s_namelen); + unsigned l = strnlen(name, sbi->s_namelen); offset = p - kaddr; - over = filldir(dirent, de->name, l, - (n<<PAGE_CACHE_SHIFT) | offset, - de->inode, DT_UNKNOWN); + over = filldir(dirent, name, l, + (n << PAGE_CACHE_SHIFT) | offset, + inumber, DT_UNKNOWN); if (over) { dir_put_page(page); goto done; @@ -156,23 +169,34 @@ minix_dirent *minix_find_entry(struct dentry *dentry, struct page **res_page) unsigned long n; unsigned long npages = dir_pages(dir); struct page *page = NULL; - struct minix_dir_entry *de; + char *p; + char *namx; + __u32 inumber; *res_page = NULL; for (n = 0; n < npages; n++) { - char *kaddr; + char *kaddr, *limit; + page = dir_get_page(dir, n); if (IS_ERR(page)) continue; kaddr = (char*)page_address(page); - de = (struct minix_dir_entry *) kaddr; - kaddr += minix_last_byte(dir, n) - sbi->s_dirsize; - for ( ; (char *) de <= kaddr ; de = minix_next_entry(de,sbi)) { - if (!de->inode) + limit = kaddr + minix_last_byte(dir, n) - sbi->s_dirsize; + for (p = kaddr; p <= limit; p = minix_next_entry(p, sbi)) { + if (sbi->s_version == MINIX_V3) { + minix3_dirent *de3 = (minix3_dirent *)p; + namx = de3->name; + inumber = de3->inode; + } else { + minix_dirent *de = (minix_dirent *)p; + namx = de->name; + inumber = de->inode; + } + if (!inumber) continue; - if (namecompare(namelen,sbi->s_namelen,name,de->name)) + if (namecompare(namelen, sbi->s_namelen, name, namx)) goto found; } dir_put_page(page); @@ -181,7 +205,7 @@ minix_dirent *minix_find_entry(struct dentry *dentry, struct page **res_page) found: *res_page = page; - return de; + return (minix_dirent *)p; } int minix_add_link(struct dentry *dentry, struct inode *inode) @@ -192,12 +216,15 @@ int minix_add_link(struct dentry *dentry, struct inode *inode) struct super_block * sb = dir->i_sb; struct minix_sb_info * sbi = minix_sb(sb); struct page *page = NULL; - struct minix_dir_entry * de; unsigned long npages = dir_pages(dir); unsigned long n; - char *kaddr; + char *kaddr, *p; + minix_dirent *de; + minix3_dirent *de3; unsigned from, to; int err; + char *namx = NULL; + __u32 inumber; /* * We take care of directory expansion in the same loop @@ -205,7 +232,7 @@ int minix_add_link(struct dentry *dentry, struct inode *inode) * to protect that region. */ for (n = 0; n <= npages; n++) { - char *dir_end; + char *limit, *dir_end; page = dir_get_page(dir, n); err = PTR_ERR(page); @@ -214,20 +241,30 @@ int minix_add_link(struct dentry *dentry, struct inode *inode) lock_page(page); kaddr = (char*)page_address(page); dir_end = kaddr + minix_last_byte(dir, n); - de = (minix_dirent *)kaddr; - kaddr += PAGE_CACHE_SIZE - sbi->s_dirsize; - while ((char *)de <= kaddr) { - if ((char *)de == dir_end) { + limit = kaddr + PAGE_CACHE_SIZE - sbi->s_dirsize; + for (p = kaddr; p <= limit; p = minix_next_entry(p, sbi)) { + de = (minix_dirent *)p; + de3 = (minix3_dirent *)p; + if (sbi->s_version == MINIX_V3) { + namx = de3->name; + inumber = de3->inode; + } else { + namx = de->name; + inumber = de->inode; + } + if (p == dir_end) { /* We hit i_size */ - de->inode = 0; + if (sbi->s_version == MINIX_V3) + de3->inode = 0; + else + de->inode = 0; goto got_it; } - if (!de->inode) + if (!inumber) goto got_it; err = -EEXIST; - if (namecompare(namelen,sbi->s_namelen,name,de->name)) + if (namecompare(namelen, sbi->s_namelen, name, namx)) goto out_unlock; - de = minix_next_entry(de, sbi); } unlock_page(page); dir_put_page(page); @@ -236,14 +273,19 @@ int minix_add_link(struct dentry *dentry, struct inode *inode) return -EINVAL; got_it: - from = (char*)de - (char*)page_address(page); + from = p - (char*)page_address(page); to = from + sbi->s_dirsize; err = page->mapping->a_ops->prepare_write(NULL, page, from, to); if (err) goto out_unlock; - memcpy (de->name, name, namelen); - memset (de->name + namelen, 0, sbi->s_dirsize - namelen - 2); - de->inode = inode->i_ino; + memcpy (namx, name, namelen); + if (sbi->s_version == MINIX_V3) { + memset (namx + namelen, 0, sbi->s_dirsize - namelen - 4); + de3->inode = inode->i_ino; + } else { + memset (namx + namelen, 0, sbi->s_dirsize - namelen - 2); + de->inode = inode->i_ino; + } err = dir_commit_chunk(page, from, to); dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC; mark_inode_dirty(dir); @@ -283,8 +325,7 @@ int minix_make_empty(struct inode *inode, struct inode *dir) { struct address_space *mapping = inode->i_mapping; struct page *page = grab_cache_page(mapping, 0); - struct minix_sb_info * sbi = minix_sb(inode->i_sb); - struct minix_dir_entry * de; + struct minix_sb_info *sbi = minix_sb(inode->i_sb); char *kaddr; int err; @@ -299,12 +340,23 @@ int minix_make_empty(struct inode *inode, struct inode *dir) kaddr = kmap_atomic(page, KM_USER0); memset(kaddr, 0, PAGE_CACHE_SIZE); - de = (struct minix_dir_entry *)kaddr; - de->inode = inode->i_ino; - strcpy(de->name,"."); - de = minix_next_entry(de, sbi); - de->inode = dir->i_ino; - strcpy(de->name,".."); + if (sbi->s_version == MINIX_V3) { + minix3_dirent *de3 = (minix3_dirent *)kaddr; + + de3->inode = inode->i_ino; + strcpy(de3->name, "."); + de3 = minix_next_entry(de3, sbi); + de3->inode = dir->i_ino; + strcpy(de3->name, ".."); + } else { + minix_dirent *de = (minix_dirent *)kaddr; + + de->inode = inode->i_ino; + strcpy(de->name, "."); + de = minix_next_entry(de, sbi); + de->inode = dir->i_ino; + strcpy(de->name, ".."); + } kunmap_atomic(kaddr, KM_USER0); err = dir_commit_chunk(page, 0, 2 * sbi->s_dirsize); @@ -321,33 +373,41 @@ int minix_empty_dir(struct inode * inode) struct page *page = NULL; unsigned long i, npages = dir_pages(inode); struct minix_sb_info *sbi = minix_sb(inode->i_sb); + char *name; + __u32 inumber; for (i = 0; i < npages; i++) { - char *kaddr; - minix_dirent * de; - page = dir_get_page(inode, i); + char *p, *kaddr, *limit; + page = dir_get_page(inode, i); if (IS_ERR(page)) continue; kaddr = (char *)page_address(page); - de = (minix_dirent *)kaddr; - kaddr += minix_last_byte(inode, i) - sbi->s_dirsize; + limit = kaddr + minix_last_byte(inode, i) - sbi->s_dirsize; + for (p = kaddr; p <= limit; p = minix_next_entry(p, sbi)) { + if (sbi->s_version == MINIX_V3) { + minix3_dirent *de3 = (minix3_dirent *)p; + name = de3->name; + inumber = de3->inode; + } else { + minix_dirent *de = (minix_dirent *)p; + name = de->name; + inumber = de->inode; + } - while ((char *)de <= kaddr) { - if (de->inode != 0) { + if (inumber != 0) { /* check for . and .. */ - if (de->name[0] != '.') + if (name[0] != '.') goto not_empty; - if (!de->name[1]) { - if (de->inode != inode->i_ino) + if (!name[1]) { + if (inumber != inode->i_ino) goto not_empty; - } else if (de->name[1] != '.') + } else if (name[1] != '.') goto not_empty; - else if (de->name[2]) + else if (name[2]) goto not_empty; } - de = minix_next_entry(de, sbi); } dir_put_page(page); } diff --git a/fs/minix/inode.c b/fs/minix/inode.c index 629e09b..9ddfcc1 100644 --- a/fs/minix/inode.c +++ b/fs/minix/inode.c @@ -7,6 +7,7 @@ * Minix V2 fs support. * * Modified for 680x0 by Andreas Schwab + * Updated to filesystem version 3 by Daniel Aragones */ #include <linux/module.h> @@ -36,7 +37,8 @@ static void minix_put_super(struct super_block *sb) struct minix_sb_info *sbi = minix_sb(sb); if (!(sb->s_flags & MS_RDONLY)) { - sbi->s_ms->s_state = sbi->s_mount_state; + if (sbi->s_version != MINIX_V3) /* s_state is now out from V3 sb */ + sbi->s_ms->s_state = sbi->s_mount_state; mark_buffer_dirty(sbi->s_sbh); } for (i = 0; i < sbi->s_imap_blocks; i++) @@ -117,12 +119,17 @@ static int minix_remount (struct super_block * sb, int * flags, char * data) !(sbi->s_mount_state & MINIX_VALID_FS)) return 0; /* Mounting a rw partition read-only. */ - ms->s_state = sbi->s_mount_state; + if (sbi->s_version != MINIX_V3) + ms->s_state = sbi->s_mount_state; mark_buffer_dirty(sbi->s_sbh); } else { /* Mount a partition which is read-only, read-write. */ - sbi->s_mount_state = ms->s_state; - ms->s_state &= ~MINIX_VALID_FS; + if (sbi->s_version != MINIX_V3) { + sbi->s_mount_state = ms->s_state; + ms->s_state &= ~MINIX_VALID_FS; + } else { + sbi->s_mount_state = MINIX_VALID_FS; + } mark_buffer_dirty(sbi->s_sbh); if (!(sbi->s_mount_state & MINIX_VALID_FS)) @@ -140,7 +147,8 @@ static int minix_fill_super(struct super_block *s, void *data, int silent) struct buffer_head *bh; struct buffer_head **map; struct minix_super_block *ms; - int i, block; + struct minix3_super_block *m3s = NULL; + unsigned long i, block; struct inode *root_inode; struct minix_sb_info *sbi; @@ -192,6 +200,22 @@ static int minix_fill_super(struct super_block *s, void *data, int silent) sbi->s_dirsize = 32; sbi->s_namelen = 30; sbi->s_link_max = MINIX2_LINK_MAX; + } else if ( *(__u16 *)(bh->b_data + 24) == MINIX3_SUPER_MAGIC) { + m3s = (struct minix3_super_block *) bh->b_data; + s->s_magic = m3s->s_magic; + sbi->s_imap_blocks = m3s->s_imap_blocks; + sbi->s_zmap_blocks = m3s->s_zmap_blocks; + sbi->s_firstdatazone = m3s->s_firstdatazone; + sbi->s_log_zone_size = m3s->s_log_zone_size; + sbi->s_max_size = m3s->s_max_size; + sbi->s_ninodes = m3s->s_ninodes; + sbi->s_nzones = m3s->s_zones; + sbi->s_dirsize = 64; + sbi->s_namelen = 60; + sbi->s_version = MINIX_V3; + sbi->s_link_max = MINIX2_LINK_MAX; + sbi->s_mount_state = MINIX_VALID_FS; + sb_set_blocksize(s, m3s->s_blocksize); } else goto out_no_fs; @@ -236,7 +260,8 @@ static int minix_fill_super(struct super_block *s, void *data, int silent) s->s_root->d_op = &minix_dentry_operations; if (!(s->s_flags & MS_RDONLY)) { - ms->s_state &= ~MINIX_VALID_FS; + if (sbi->s_version != MINIX_V3) /* s_state is now out from V3 sb */ + ms->s_state &= ~MINIX_VALID_FS; mark_buffer_dirty(bh); } if (!(sbi->s_mount_state & MINIX_VALID_FS)) @@ -278,8 +303,8 @@ out_illegal_sb: out_no_fs: if (!silent) - printk("VFS: Can't find a Minix or Minix V2 filesystem " - "on device %s\n", s->s_id); + printk("VFS: Can't find a Minix filesystem V1 | V2 | V3 " + "on device %s.\n", s->s_id); out_release: brelse(bh); goto out; @@ -537,12 +562,14 @@ int minix_sync_inode(struct inode * inode) int minix_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) { + struct inode *dir = dentry->d_parent->d_inode; + struct super_block *sb = dir->i_sb; generic_fillattr(dentry->d_inode, stat); if (INODE_VERSION(dentry->d_inode) == MINIX_V1) - stat->blocks = (BLOCK_SIZE / 512) * V1_minix_blocks(stat->size); + stat->blocks = (BLOCK_SIZE / 512) * V1_minix_blocks(stat->size, sb); else - stat->blocks = (BLOCK_SIZE / 512) * V2_minix_blocks(stat->size); - stat->blksize = BLOCK_SIZE; + stat->blocks = (sb->s_blocksize / 512) * V2_minix_blocks(stat->size, sb); + stat->blksize = sb->s_blocksize; return 0; } diff --git a/fs/minix/itree_common.c b/fs/minix/itree_common.c index 429baf8..a731cab 100644 --- a/fs/minix/itree_common.c +++ b/fs/minix/itree_common.c @@ -23,7 +23,7 @@ static inline int verify_chain(Indirect *from, Indirect *to) static inline block_t *block_end(struct buffer_head *bh) { - return (block_t *)((char*)bh->b_data + BLOCK_SIZE); + return (block_t *)((char*)bh->b_data + bh->b_size); } static inline Indirect *get_branch(struct inode *inode, @@ -85,7 +85,7 @@ static int alloc_branch(struct inode *inode, branch[n].key = cpu_to_block(nr); bh = sb_getblk(inode->i_sb, parent); lock_buffer(bh); - memset(bh->b_data, 0, BLOCK_SIZE); + memset(bh->b_data, 0, bh->b_size); branch[n].bh = bh; branch[n].p = (block_t*) bh->b_data + offsets[n]; *branch[n].p = branch[n].key; @@ -292,6 +292,7 @@ static void free_branches(struct inode *inode, block_t *p, block_t *q, int depth static inline void truncate (struct inode * inode) { + struct super_block *sb = inode->i_sb; block_t *idata = i_data(inode); int offsets[DEPTH]; Indirect chain[DEPTH]; @@ -301,7 +302,7 @@ static inline void truncate (struct inode * inode) int first_whole; long iblock; - iblock = (inode->i_size + BLOCK_SIZE-1) >> 10; + iblock = (inode->i_size + sb->s_blocksize -1) >> sb->s_blocksize_bits; block_truncate_page(inode->i_mapping, inode->i_size, get_block); n = block_to_path(inode, iblock, offsets); @@ -346,15 +347,16 @@ do_indirects: mark_inode_dirty(inode); } -static inline unsigned nblocks(loff_t size) +static inline unsigned nblocks(loff_t size, struct super_block *sb) { + int k = sb->s_blocksize_bits - 10; unsigned blocks, res, direct = DIRECT, i = DEPTH; - blocks = (size + BLOCK_SIZE - 1) >> BLOCK_SIZE_BITS; + blocks = (size + sb->s_blocksize - 1) >> (BLOCK_SIZE_BITS + k); res = blocks; while (--i && blocks > direct) { blocks -= direct; - blocks += BLOCK_SIZE/sizeof(block_t) - 1; - blocks /= BLOCK_SIZE/sizeof(block_t); + blocks += sb->s_blocksize/sizeof(block_t) - 1; + blocks /= sb->s_blocksize/sizeof(block_t); res += blocks; direct = 1; } diff --git a/fs/minix/itree_v1.c b/fs/minix/itree_v1.c index 656b134..1a5f3bf 100644 --- a/fs/minix/itree_v1.c +++ b/fs/minix/itree_v1.c @@ -55,7 +55,7 @@ void V1_minix_truncate(struct inode * inode) truncate(inode); } -unsigned V1_minix_blocks(loff_t size) +unsigned V1_minix_blocks(loff_t size, struct super_block *sb) { - return nblocks(size); + return nblocks(size, sb); } diff --git a/fs/minix/itree_v2.c b/fs/minix/itree_v2.c index 9adcdc7..ad8f0de 100644 --- a/fs/minix/itree_v2.c +++ b/fs/minix/itree_v2.c @@ -23,10 +23,11 @@ static inline block_t *i_data(struct inode *inode) static int block_to_path(struct inode * inode, long block, int offsets[DEPTH]) { int n = 0; + struct super_block *sb = inode->i_sb; if (block < 0) { printk("minix_bmap: block<0\n"); - } else if (block >= (minix_sb(inode->i_sb)->s_max_size/BLOCK_SIZE)) { + } else if (block >= (minix_sb(inode->i_sb)->s_max_size/sb->s_blocksize)) { printk("minix_bmap: block>big\n"); } else if (block < 7) { offsets[n++] = block; @@ -60,7 +61,7 @@ void V2_minix_truncate(struct inode * inode) truncate(inode); } -unsigned V2_minix_blocks(loff_t size) +unsigned V2_minix_blocks(loff_t size, struct super_block *sb) { - return nblocks(size); + return nblocks(size, sb); } diff --git a/fs/minix/minix.h b/fs/minix/minix.h index c55b77c..e016ee91 100644 --- a/fs/minix/minix.h +++ b/fs/minix/minix.h @@ -7,11 +7,10 @@ * truncated. Else they will be disallowed (ENAMETOOLONG). */ #define NO_TRUNCATE 1 - #define INODE_VERSION(inode) minix_sb(inode->i_sb)->s_version - #define MINIX_V1 0x0001 /* original minix fs */ #define MINIX_V2 0x0002 /* minix V2 fs */ +#define MINIX_V3 0x0003 /* minix V3 fs */ /* * minix fs inode data in memory @@ -52,12 +51,10 @@ extern struct inode * minix_new_inode(const struct inode * dir, int * error); extern void minix_free_inode(struct inode * inode); extern unsigned long minix_count_free_inodes(struct minix_sb_info *sbi); extern int minix_new_block(struct inode * inode); -extern void minix_free_block(struct inode * inode, int block); +extern void minix_free_block(struct inode *inode, unsigned long block); extern unsigned long minix_count_free_blocks(struct minix_sb_info *sbi); - extern int minix_getattr(struct vfsmount *, struct dentry *, struct kstat *); -extern void V2_minix_truncate(struct inode *); extern void V1_minix_truncate(struct inode *); extern void V2_minix_truncate(struct inode *); extern void minix_truncate(struct inode *); @@ -65,8 +62,8 @@ extern int minix_sync_inode(struct inode *); extern void minix_set_inode(struct inode *, dev_t); extern int V1_minix_get_block(struct inode *, long, struct buffer_head *, int); extern int V2_minix_get_block(struct inode *, long, struct buffer_head *, int); -extern unsigned V1_minix_blocks(loff_t); -extern unsigned V2_minix_blocks(loff_t); +extern unsigned V1_minix_blocks(loff_t, struct super_block *); +extern unsigned V2_minix_blocks(loff_t, struct super_block *); extern struct minix_dir_entry *minix_find_entry(struct dentry*, struct page**); extern int minix_add_link(struct dentry*, struct inode*); @@ -76,7 +73,6 @@ extern int minix_empty_dir(struct inode*); extern void minix_set_link(struct minix_dir_entry*, struct page*, struct inode*); extern struct minix_dir_entry *minix_dotdot(struct inode*, struct page**); extern ino_t minix_inode_by_name(struct dentry*); - extern int minix_sync_file(struct file *, struct dentry *, int); extern struct inode_operations minix_file_inode_operations; |
