diff options
Diffstat (limited to 'fs/reiserfs/super.c')
| -rw-r--r-- | fs/reiserfs/super.c | 161 |
1 files changed, 18 insertions, 143 deletions
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index b40d4d64d598..c89aa2338191 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -432,7 +432,6 @@ int remove_save_link(struct inode *inode, int truncate) static void reiserfs_put_super(struct super_block *s) { - int i; struct reiserfs_transaction_handle th; th.t_trans_id = 0; @@ -462,10 +461,7 @@ static void reiserfs_put_super(struct super_block *s) */ journal_release(&th, s); - for (i = 0; i < SB_BMAP_NR(s); i++) - brelse(SB_AP_BITMAP(s)[i].bh); - - vfree(SB_AP_BITMAP(s)); + reiserfs_free_bitmap_cache(s); brelse(SB_BUFFER_WITH_SB(s)); @@ -510,8 +506,10 @@ static void init_once(void *foo, kmem_cache_t * cachep, unsigned long flags) SLAB_CTOR_CONSTRUCTOR) { INIT_LIST_HEAD(&ei->i_prealloc_list); inode_init_once(&ei->vfs_inode); +#ifdef CONFIG_REISERFS_FS_POSIX_ACL ei->i_acl_access = NULL; ei->i_acl_default = NULL; +#endif } } @@ -560,6 +558,7 @@ static void reiserfs_dirty_inode(struct inode *inode) reiserfs_write_unlock(inode->i_sb); } +#ifdef CONFIG_REISERFS_FS_POSIX_ACL static void reiserfs_clear_inode(struct inode *inode) { struct posix_acl *acl; @@ -574,6 +573,9 @@ static void reiserfs_clear_inode(struct inode *inode) posix_acl_release(acl); REISERFS_I(inode)->i_acl_default = NULL; } +#else +#define reiserfs_clear_inode NULL +#endif #ifdef CONFIG_QUOTA static ssize_t reiserfs_quota_write(struct super_block *, int, const char *, @@ -1237,118 +1239,6 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) return 0; } -/* load_bitmap_info_data - Sets up the reiserfs_bitmap_info structure from disk. - * @sb - superblock for this filesystem - * @bi - the bitmap info to be loaded. Requires that bi->bh is valid. - * - * This routine counts how many free bits there are, finding the first zero - * as a side effect. Could also be implemented as a loop of test_bit() calls, or - * a loop of find_first_zero_bit() calls. This implementation is similar to - * find_first_zero_bit(), but doesn't return after it finds the first bit. - * Should only be called on fs mount, but should be fairly efficient anyways. - * - * bi->first_zero_hint is considered unset if it == 0, since the bitmap itself - * will * invariably occupt block 0 represented in the bitmap. The only - * exception to this is when free_count also == 0, since there will be no - * free blocks at all. - */ - -static void load_bitmap_info_data(struct super_block *sb, - struct reiserfs_bitmap_info *bi) -{ - unsigned long *cur = (unsigned long *)bi->bh->b_data; - - while ((char *)cur < (bi->bh->b_data + sb->s_blocksize)) { - - /* No need to scan if all 0's or all 1's. - * Since we're only counting 0's, we can simply ignore all 1's */ - if (*cur == 0) { - if (bi->first_zero_hint == 0) { - bi->first_zero_hint = - ((char *)cur - bi->bh->b_data) << 3; - } - bi->free_count += sizeof(unsigned long) * 8; - } else if (*cur != ~0L) { - int b; - for (b = 0; b < sizeof(unsigned long) * 8; b++) { - if (!reiserfs_test_le_bit(b, cur)) { - bi->free_count++; - if (bi->first_zero_hint == 0) - bi->first_zero_hint = - (((char *)cur - - bi->bh->b_data) << 3) + b; - } - } - } - cur++; - } - -#ifdef CONFIG_REISERFS_CHECK -// This outputs a lot of unneded info on big FSes -// reiserfs_warning ("bitmap loaded from block %d: %d free blocks", -// bi->bh->b_blocknr, bi->free_count); -#endif -} - -static int read_bitmaps(struct super_block *s) -{ - int i, bmap_nr; - - SB_AP_BITMAP(s) = - vmalloc(sizeof(struct reiserfs_bitmap_info) * SB_BMAP_NR(s)); - if (SB_AP_BITMAP(s) == 0) - return 1; - memset(SB_AP_BITMAP(s), 0, - sizeof(struct reiserfs_bitmap_info) * SB_BMAP_NR(s)); - for (i = 0, bmap_nr = - REISERFS_DISK_OFFSET_IN_BYTES / s->s_blocksize + 1; - i < SB_BMAP_NR(s); i++, bmap_nr = s->s_blocksize * 8 * i) { - SB_AP_BITMAP(s)[i].bh = sb_getblk(s, bmap_nr); - if (!buffer_uptodate(SB_AP_BITMAP(s)[i].bh)) - ll_rw_block(READ, 1, &SB_AP_BITMAP(s)[i].bh); - } - for (i = 0; i < SB_BMAP_NR(s); i++) { - wait_on_buffer(SB_AP_BITMAP(s)[i].bh); - if (!buffer_uptodate(SB_AP_BITMAP(s)[i].bh)) { - reiserfs_warning(s, "sh-2029: reiserfs read_bitmaps: " - "bitmap block (#%lu) reading failed", - SB_AP_BITMAP(s)[i].bh->b_blocknr); - for (i = 0; i < SB_BMAP_NR(s); i++) - brelse(SB_AP_BITMAP(s)[i].bh); - vfree(SB_AP_BITMAP(s)); - SB_AP_BITMAP(s) = NULL; - return 1; - } - load_bitmap_info_data(s, SB_AP_BITMAP(s) + i); - } - return 0; -} - -static int read_old_bitmaps(struct super_block *s) -{ - int i; - struct reiserfs_super_block *rs = SB_DISK_SUPER_BLOCK(s); - int bmp1 = (REISERFS_OLD_DISK_OFFSET_IN_BYTES / s->s_blocksize) + 1; /* first of bitmap blocks */ - - /* read true bitmap */ - SB_AP_BITMAP(s) = - vmalloc(sizeof(struct reiserfs_buffer_info *) * sb_bmap_nr(rs)); - if (SB_AP_BITMAP(s) == 0) - return 1; - - memset(SB_AP_BITMAP(s), 0, - sizeof(struct reiserfs_buffer_info *) * sb_bmap_nr(rs)); - - for (i = 0; i < sb_bmap_nr(rs); i++) { - SB_AP_BITMAP(s)[i].bh = sb_bread(s, bmp1 + i); - if (!SB_AP_BITMAP(s)[i].bh) - return 1; - load_bitmap_info_data(s, SB_AP_BITMAP(s) + i); - } - - return 0; -} - static int read_super_block(struct super_block *s, int offset) { struct buffer_head *bh; @@ -1450,7 +1340,6 @@ static int read_super_block(struct super_block *s, int offset) /* after journal replay, reread all bitmap and super blocks */ static int reread_meta_blocks(struct super_block *s) { - int i; ll_rw_block(READ, 1, &(SB_BUFFER_WITH_SB(s))); wait_on_buffer(SB_BUFFER_WITH_SB(s)); if (!buffer_uptodate(SB_BUFFER_WITH_SB(s))) { @@ -1459,20 +1348,7 @@ static int reread_meta_blocks(struct super_block *s) return 1; } - for (i = 0; i < SB_BMAP_NR(s); i++) { - ll_rw_block(READ, 1, &(SB_AP_BITMAP(s)[i].bh)); - wait_on_buffer(SB_AP_BITMAP(s)[i].bh); - if (!buffer_uptodate(SB_AP_BITMAP(s)[i].bh)) { - reiserfs_warning(s, - "reread_meta_blocks, error reading bitmap block number %d at %llu", - i, - (unsigned long long)SB_AP_BITMAP(s)[i]. - bh->b_blocknr); - return 1; - } - } return 0; - } ///////////////////////////////////////////////////// @@ -1653,7 +1529,6 @@ static int function2code(hashf_t func) static int reiserfs_fill_super(struct super_block *s, void *data, int silent) { struct inode *root_inode; - int j; struct reiserfs_transaction_handle th; int old_format = 0; unsigned long blocks; @@ -1730,7 +1605,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent) sbi->s_mount_state = SB_REISERFS_STATE(s); sbi->s_mount_state = REISERFS_VALID_FS; - if (old_format ? read_old_bitmaps(s) : read_bitmaps(s)) { + if ((errval = reiserfs_init_bitmap_cache(s))) { SWARN(silent, s, "jmacd-8: reiserfs_fill_super: unable to read bitmap"); goto error; @@ -1812,6 +1687,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent) if (is_reiserfs_3_5(rs) || (is_reiserfs_jr(rs) && SB_VERSION(s) == REISERFS_VERSION_1)) set_bit(REISERFS_3_5, &(sbi->s_properties)); + else if (old_format) + set_bit(REISERFS_OLD_FORMAT, &(sbi->s_properties)); else set_bit(REISERFS_3_6, &(sbi->s_properties)); @@ -1897,19 +1774,17 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent) if (jinit_done) { /* kill the commit thread, free journal ram */ journal_release_error(NULL, s); } - if (SB_DISK_SUPER_BLOCK(s)) { - for (j = 0; j < SB_BMAP_NR(s); j++) { - if (SB_AP_BITMAP(s)) - brelse(SB_AP_BITMAP(s)[j].bh); - } - vfree(SB_AP_BITMAP(s)); - } + + reiserfs_free_bitmap_cache(s); if (SB_BUFFER_WITH_SB(s)) brelse(SB_BUFFER_WITH_SB(s)); #ifdef CONFIG_QUOTA - for (j = 0; j < MAXQUOTAS; j++) { - kfree(sbi->s_qf_names[j]); - sbi->s_qf_names[j] = NULL; + { + int j; + for (j = 0; j < MAXQUOTAS; j++) { + kfree(sbi->s_qf_names[j]); + sbi->s_qf_names[j] = NULL; + } } #endif kfree(sbi); |