ialloc.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:19k
- /*
- * linux/fs/ext3/ialloc.c
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * BSD ufs-inspired inode and directory allocation by
- * Stephen Tweedie (sct@redhat.com), 1993
- * Big-endian to little-endian byte-swapping/bitmaps by
- * David S. Miller (davem@caip.rutgers.edu), 1995
- */
- #include <linux/sched.h>
- #include <linux/fs.h>
- #include <linux/jbd.h>
- #include <linux/ext3_fs.h>
- #include <linux/ext3_jbd.h>
- #include <linux/stat.h>
- #include <linux/string.h>
- #include <linux/locks.h>
- #include <linux/quotaops.h>
- #include <asm/bitops.h>
- #include <asm/byteorder.h>
- /*
- * ialloc.c contains the inodes allocation and deallocation routines
- */
- /*
- * The free inodes are managed by bitmaps. A file system contains several
- * blocks groups. Each group contains 1 bitmap block for blocks, 1 bitmap
- * block for inodes, N blocks for the inode table and data blocks.
- *
- * The file system contains group descriptors which are located after the
- * super block. Each descriptor contains the number of the bitmap block and
- * the free blocks count in the block. The descriptors are loaded in memory
- * when a file system is mounted (see ext3_read_super).
- */
- /*
- * Read the inode allocation bitmap for a given block_group, reading
- * into the specified slot in the superblock's bitmap cache.
- *
- * Return >=0 on success or a -ve error code.
- */
- static int read_inode_bitmap (struct super_block * sb,
- unsigned long block_group,
- unsigned int bitmap_nr)
- {
- struct ext3_group_desc * gdp;
- struct buffer_head * bh = NULL;
- int retval = 0;
- gdp = ext3_get_group_desc (sb, block_group, NULL);
- if (!gdp) {
- retval = -EIO;
- goto error_out;
- }
- bh = sb_bread(sb, le32_to_cpu(gdp->bg_inode_bitmap));
- if (!bh) {
- ext3_error (sb, "read_inode_bitmap",
- "Cannot read inode bitmap - "
- "block_group = %lu, inode_bitmap = %lu",
- block_group, (unsigned long) gdp->bg_inode_bitmap);
- retval = -EIO;
- }
- /*
- * On IO error, just leave a zero in the superblock's block pointer for
- * this group. The IO will be retried next time.
- */
- error_out:
- sb->u.ext3_sb.s_inode_bitmap_number[bitmap_nr] = block_group;
- sb->u.ext3_sb.s_inode_bitmap[bitmap_nr] = bh;
- return retval;
- }
- /*
- * load_inode_bitmap loads the inode bitmap for a blocks group
- *
- * It maintains a cache for the last bitmaps loaded. This cache is managed
- * with a LRU algorithm.
- *
- * Notes:
- * 1/ There is one cache per mounted file system.
- * 2/ If the file system contains less than EXT3_MAX_GROUP_LOADED groups,
- * this function reads the bitmap without maintaining a LRU cache.
- *
- * Return the slot used to store the bitmap, or a -ve error code.
- */
- static int load_inode_bitmap (struct super_block * sb,
- unsigned int block_group)
- {
- struct ext3_sb_info *sbi = EXT3_SB(sb);
- unsigned long inode_bitmap_number;
- struct buffer_head * inode_bitmap;
- int i, j, retval = 0;
- if (block_group >= sbi->s_groups_count)
- ext3_panic (sb, "load_inode_bitmap",
- "block_group >= groups_count - "
- "block_group = %d, groups_count = %lu",
- block_group, sbi->s_groups_count);
- if (sbi->s_loaded_inode_bitmaps > 0 &&
- sbi->s_inode_bitmap_number[0] == block_group &&
- sbi->s_inode_bitmap[0] != NULL)
- return 0;
- if (sbi->s_groups_count <= EXT3_MAX_GROUP_LOADED) {
- if (sbi->s_inode_bitmap[block_group]) {
- if (sbi->s_inode_bitmap_number[block_group] !=
- block_group)
- ext3_panic(sb, "load_inode_bitmap",
- "block_group != inode_bitmap_number");
- return block_group;
- }
- retval = read_inode_bitmap(sb, block_group, block_group);
- if (retval < 0)
- return retval;
- return block_group;
- }
- for (i = 0; i < sbi->s_loaded_inode_bitmaps &&
- sbi->s_inode_bitmap_number[i] != block_group; i++)
- /* do nothing */;
- if (i < sbi->s_loaded_inode_bitmaps &&
- sbi->s_inode_bitmap_number[i] == block_group) {
- inode_bitmap_number = sbi->s_inode_bitmap_number[i];
- inode_bitmap = sbi->s_inode_bitmap[i];
- for (j = i; j > 0; j--) {
- sbi->s_inode_bitmap_number[j] =
- sbi->s_inode_bitmap_number[j - 1];
- sbi->s_inode_bitmap[j] = sbi->s_inode_bitmap[j - 1];
- }
- sbi->s_inode_bitmap_number[0] = inode_bitmap_number;
- sbi->s_inode_bitmap[0] = inode_bitmap;
- /*
- * There's still one special case here --- if inode_bitmap == 0
- * then our last attempt to read the bitmap failed and we have
- * just ended up caching that failure. Try again to read it.
- */
- if (!inode_bitmap)
- retval = read_inode_bitmap (sb, block_group, 0);
- } else {
- if (sbi->s_loaded_inode_bitmaps < EXT3_MAX_GROUP_LOADED)
- sbi->s_loaded_inode_bitmaps++;
- else
- brelse(sbi->s_inode_bitmap[EXT3_MAX_GROUP_LOADED - 1]);
- for (j = sbi->s_loaded_inode_bitmaps - 1; j > 0; j--) {
- sbi->s_inode_bitmap_number[j] =
- sbi->s_inode_bitmap_number[j - 1];
- sbi->s_inode_bitmap[j] = sbi->s_inode_bitmap[j - 1];
- }
- retval = read_inode_bitmap (sb, block_group, 0);
- }
- return retval;
- }
- /*
- * NOTE! When we get the inode, we're the only people
- * that have access to it, and as such there are no
- * race conditions we have to worry about. The inode
- * is not on the hash-lists, and it cannot be reached
- * through the filesystem because the directory entry
- * has been deleted earlier.
- *
- * HOWEVER: we must make sure that we get no aliases,
- * which means that we have to call "clear_inode()"
- * _before_ we mark the inode not in use in the inode
- * bitmaps. Otherwise a newly created file might use
- * the same inode number (not actually the same pointer
- * though), and then we'd have two inodes sharing the
- * same inode number and space on the harddisk.
- */
- void ext3_free_inode (handle_t *handle, struct inode * inode)
- {
- struct super_block * sb = inode->i_sb;
- int is_directory;
- unsigned long ino;
- struct buffer_head * bh;
- struct buffer_head * bh2;
- unsigned long block_group;
- unsigned long bit;
- int bitmap_nr;
- struct ext3_group_desc * gdp;
- struct ext3_super_block * es;
- int fatal = 0, err;
- if (!inode->i_dev) {
- printk ("ext3_free_inode: inode has no devicen");
- return;
- }
- if (atomic_read(&inode->i_count) > 1) {
- printk ("ext3_free_inode: inode has count=%dn",
- atomic_read(&inode->i_count));
- return;
- }
- if (inode->i_nlink) {
- printk ("ext3_free_inode: inode has nlink=%dn",
- inode->i_nlink);
- return;
- }
- if (!sb) {
- printk("ext3_free_inode: inode on nonexistent devicen");
- return;
- }
- ino = inode->i_ino;
- ext3_debug ("freeing inode %lun", ino);
- /*
- * Note: we must free any quota before locking the superblock,
- * as writing the quota to disk may need the lock as well.
- */
- DQUOT_INIT(inode);
- DQUOT_FREE_INODE(inode);
- DQUOT_DROP(inode);
- is_directory = S_ISDIR(inode->i_mode);
- /* Do this BEFORE marking the inode not in use or returning an error */
- clear_inode (inode);
- lock_super (sb);
- es = sb->u.ext3_sb.s_es;
- if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
- ext3_error (sb, "ext3_free_inode",
- "reserved or nonexistent inode %lu", ino);
- goto error_return;
- }
- block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
- bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
- bitmap_nr = load_inode_bitmap (sb, block_group);
- if (bitmap_nr < 0)
- goto error_return;
- bh = sb->u.ext3_sb.s_inode_bitmap[bitmap_nr];
- BUFFER_TRACE(bh, "get_write_access");
- fatal = ext3_journal_get_write_access(handle, bh);
- if (fatal)
- goto error_return;
- /* Ok, now we can actually update the inode bitmaps.. */
- if (!ext3_clear_bit (bit, bh->b_data))
- ext3_error (sb, "ext3_free_inode",
- "bit already cleared for inode %lu", ino);
- else {
- gdp = ext3_get_group_desc (sb, block_group, &bh2);
- BUFFER_TRACE(bh2, "get_write_access");
- fatal = ext3_journal_get_write_access(handle, bh2);
- if (fatal) goto error_return;
- BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "get write access");
- fatal = ext3_journal_get_write_access(handle, sb->u.ext3_sb.s_sbh);
- if (fatal) goto error_return;
- if (gdp) {
- gdp->bg_free_inodes_count = cpu_to_le16(
- le16_to_cpu(gdp->bg_free_inodes_count) + 1);
- if (is_directory)
- gdp->bg_used_dirs_count = cpu_to_le16(
- le16_to_cpu(gdp->bg_used_dirs_count) - 1);
- }
- BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, bh2);
- if (!fatal) fatal = err;
- es->s_free_inodes_count =
- cpu_to_le32(le32_to_cpu(es->s_free_inodes_count) + 1);
- BUFFER_TRACE(sb->u.ext3_sb.s_sbh,
- "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, sb->u.ext3_sb.s_sbh);
- if (!fatal) fatal = err;
- }
- BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, bh);
- if (!fatal)
- fatal = err;
- sb->s_dirt = 1;
- error_return:
- ext3_std_error(sb, fatal);
- unlock_super(sb);
- }
- /*
- * There are two policies for allocating an inode. If the new inode is
- * a directory, then a forward search is made for a block group with both
- * free space and a low directory-to-inode ratio; if that fails, then of
- * the groups with above-average free space, that group with the fewest
- * directories already is chosen.
- *
- * For other inodes, search forward from the parent directory's block
- * group to find a free inode.
- */
- struct inode * ext3_new_inode (handle_t *handle,
- const struct inode * dir, int mode)
- {
- struct super_block * sb;
- struct buffer_head * bh;
- struct buffer_head * bh2;
- int i, j, avefreei;
- struct inode * inode;
- int bitmap_nr;
- struct ext3_group_desc * gdp;
- struct ext3_group_desc * tmp;
- struct ext3_super_block * es;
- int err = 0;
- /* Cannot create files in a deleted directory */
- if (!dir || !dir->i_nlink)
- return ERR_PTR(-EPERM);
- sb = dir->i_sb;
- inode = new_inode(sb);
- if (!inode)
- return ERR_PTR(-ENOMEM);
- init_rwsem(&inode->u.ext3_i.truncate_sem);
- lock_super (sb);
- es = sb->u.ext3_sb.s_es;
- repeat:
- gdp = NULL;
- i = 0;
- if (S_ISDIR(mode)) {
- avefreei = le32_to_cpu(es->s_free_inodes_count) /
- sb->u.ext3_sb.s_groups_count;
- if (!gdp) {
- for (j = 0; j < sb->u.ext3_sb.s_groups_count; j++) {
- struct buffer_head *temp_buffer;
- tmp = ext3_get_group_desc (sb, j, &temp_buffer);
- if (tmp &&
- le16_to_cpu(tmp->bg_free_inodes_count) &&
- le16_to_cpu(tmp->bg_free_inodes_count) >=
- avefreei) {
- if (!gdp || (le16_to_cpu(tmp->bg_free_blocks_count) >
- le16_to_cpu(gdp->bg_free_blocks_count))) {
- i = j;
- gdp = tmp;
- bh2 = temp_buffer;
- }
- }
- }
- }
- } else {
- /*
- * Try to place the inode in its parent directory
- */
- i = dir->u.ext3_i.i_block_group;
- tmp = ext3_get_group_desc (sb, i, &bh2);
- if (tmp && le16_to_cpu(tmp->bg_free_inodes_count))
- gdp = tmp;
- else
- {
- /*
- * Use a quadratic hash to find a group with a
- * free inode
- */
- for (j = 1; j < sb->u.ext3_sb.s_groups_count; j <<= 1) {
- i += j;
- if (i >= sb->u.ext3_sb.s_groups_count)
- i -= sb->u.ext3_sb.s_groups_count;
- tmp = ext3_get_group_desc (sb, i, &bh2);
- if (tmp &&
- le16_to_cpu(tmp->bg_free_inodes_count)) {
- gdp = tmp;
- break;
- }
- }
- }
- if (!gdp) {
- /*
- * That failed: try linear search for a free inode
- */
- i = dir->u.ext3_i.i_block_group + 1;
- for (j = 2; j < sb->u.ext3_sb.s_groups_count; j++) {
- if (++i >= sb->u.ext3_sb.s_groups_count)
- i = 0;
- tmp = ext3_get_group_desc (sb, i, &bh2);
- if (tmp &&
- le16_to_cpu(tmp->bg_free_inodes_count)) {
- gdp = tmp;
- break;
- }
- }
- }
- }
- err = -ENOSPC;
- if (!gdp)
- goto out;
- err = -EIO;
- bitmap_nr = load_inode_bitmap (sb, i);
- if (bitmap_nr < 0)
- goto fail;
- bh = sb->u.ext3_sb.s_inode_bitmap[bitmap_nr];
- if ((j = ext3_find_first_zero_bit ((unsigned long *) bh->b_data,
- EXT3_INODES_PER_GROUP(sb))) <
- EXT3_INODES_PER_GROUP(sb)) {
- BUFFER_TRACE(bh, "get_write_access");
- err = ext3_journal_get_write_access(handle, bh);
- if (err) goto fail;
-
- if (ext3_set_bit (j, bh->b_data)) {
- ext3_error (sb, "ext3_new_inode",
- "bit already set for inode %d", j);
- goto repeat;
- }
- BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, bh);
- if (err) goto fail;
- } else {
- if (le16_to_cpu(gdp->bg_free_inodes_count) != 0) {
- ext3_error (sb, "ext3_new_inode",
- "Free inodes count corrupted in group %d",
- i);
- /* Is it really ENOSPC? */
- err = -ENOSPC;
- if (sb->s_flags & MS_RDONLY)
- goto fail;
- BUFFER_TRACE(bh2, "get_write_access");
- err = ext3_journal_get_write_access(handle, bh2);
- if (err) goto fail;
- gdp->bg_free_inodes_count = 0;
- BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, bh2);
- if (err) goto fail;
- }
- goto repeat;
- }
- j += i * EXT3_INODES_PER_GROUP(sb) + 1;
- if (j < EXT3_FIRST_INO(sb) || j > le32_to_cpu(es->s_inodes_count)) {
- ext3_error (sb, "ext3_new_inode",
- "reserved inode or inode > inodes count - "
- "block_group = %d,inode=%d", i, j);
- err = -EIO;
- goto fail;
- }
- BUFFER_TRACE(bh2, "get_write_access");
- err = ext3_journal_get_write_access(handle, bh2);
- if (err) goto fail;
- gdp->bg_free_inodes_count =
- cpu_to_le16(le16_to_cpu(gdp->bg_free_inodes_count) - 1);
- if (S_ISDIR(mode))
- gdp->bg_used_dirs_count =
- cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);
- BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, bh2);
- if (err) goto fail;
-
- BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "get_write_access");
- err = ext3_journal_get_write_access(handle, sb->u.ext3_sb.s_sbh);
- if (err) goto fail;
- es->s_free_inodes_count =
- cpu_to_le32(le32_to_cpu(es->s_free_inodes_count) - 1);
- BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "call ext3_journal_dirty_metadata");
- err = ext3_journal_dirty_metadata(handle, sb->u.ext3_sb.s_sbh);
- sb->s_dirt = 1;
- if (err) goto fail;
- inode->i_uid = current->fsuid;
- if (test_opt (sb, GRPID))
- inode->i_gid = dir->i_gid;
- else if (dir->i_mode & S_ISGID) {
- inode->i_gid = dir->i_gid;
- if (S_ISDIR(mode))
- mode |= S_ISGID;
- } else
- inode->i_gid = current->fsgid;
- inode->i_mode = mode;
- inode->i_ino = j;
- /* This is the optimal IO size (for stat), not the fs block size */
- inode->i_blksize = PAGE_SIZE;
- inode->i_blocks = 0;
- inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
- inode->u.ext3_i.i_flags = dir->u.ext3_i.i_flags & ~EXT3_INDEX_FL;
- if (S_ISLNK(mode))
- inode->u.ext3_i.i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL);
- #ifdef EXT3_FRAGMENTS
- inode->u.ext3_i.i_faddr = 0;
- inode->u.ext3_i.i_frag_no = 0;
- inode->u.ext3_i.i_frag_size = 0;
- #endif
- inode->u.ext3_i.i_file_acl = 0;
- inode->u.ext3_i.i_dir_acl = 0;
- inode->u.ext3_i.i_dtime = 0;
- INIT_LIST_HEAD(&inode->u.ext3_i.i_orphan);
- #ifdef EXT3_PREALLOCATE
- inode->u.ext3_i.i_prealloc_count = 0;
- #endif
- inode->u.ext3_i.i_block_group = i;
-
- if (inode->u.ext3_i.i_flags & EXT3_SYNC_FL)
- inode->i_flags |= S_SYNC;
- if (IS_SYNC(inode))
- handle->h_sync = 1;
- insert_inode_hash(inode);
- inode->i_generation = sb->u.ext3_sb.s_next_generation++;
- inode->u.ext3_i.i_state = EXT3_STATE_NEW;
- err = ext3_mark_inode_dirty(handle, inode);
- if (err) goto fail;
-
- unlock_super (sb);
- if(DQUOT_ALLOC_INODE(inode)) {
- DQUOT_DROP(inode);
- inode->i_flags |= S_NOQUOTA;
- inode->i_nlink = 0;
- iput(inode);
- return ERR_PTR(-EDQUOT);
- }
- ext3_debug ("allocating inode %lun", inode->i_ino);
- return inode;
- fail:
- ext3_std_error(sb, err);
- out:
- unlock_super(sb);
- iput(inode);
- return ERR_PTR(err);
- }
- /* Verify that we are loading a valid orphan from disk */
- struct inode *ext3_orphan_get (struct super_block * sb, ino_t ino)
- {
- ino_t max_ino = le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count);
- unsigned long block_group;
- int bit;
- int bitmap_nr;
- struct buffer_head *bh;
- struct inode *inode = NULL;
-
- /* Error cases - e2fsck has already cleaned up for us */
- if (ino > max_ino) {
- ext3_warning(sb, __FUNCTION__,
- "bad orphan ino %ld! e2fsck was run?n", ino);
- return NULL;
- }
- block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
- bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
- if ((bitmap_nr = load_inode_bitmap(sb, block_group)) < 0 ||
- !(bh = EXT3_SB(sb)->s_inode_bitmap[bitmap_nr])) {
- ext3_warning(sb, __FUNCTION__,
- "inode bitmap error for orphan %ldn", ino);
- return NULL;
- }
- /* Having the inode bit set should be a 100% indicator that this
- * is a valid orphan (no e2fsck run on fs). Orphans also include
- * inodes that were being truncated, so we can't check i_nlink==0.
- */
- if (!ext3_test_bit(bit, bh->b_data) || !(inode = iget(sb, ino)) ||
- is_bad_inode(inode) || NEXT_ORPHAN(inode) > max_ino) {
- ext3_warning(sb, __FUNCTION__,
- "bad orphan inode %ld! e2fsck was run?n", ino);
- printk(KERN_NOTICE "ext3_test_bit(bit=%d, block=%ld) = %dn",
- bit, bh->b_blocknr, ext3_test_bit(bit, bh->b_data));
- printk(KERN_NOTICE "inode=%pn", inode);
- if (inode) {
- printk(KERN_NOTICE "is_bad_inode(inode)=%dn",
- is_bad_inode(inode));
- printk(KERN_NOTICE "NEXT_ORPHAN(inode)=%dn",
- NEXT_ORPHAN(inode));
- printk(KERN_NOTICE "max_ino=%ldn", max_ino);
- }
- /* Avoid freeing blocks if we got a bad deleted inode */
- if (inode && inode->i_nlink == 0)
- inode->i_blocks = 0;
- iput(inode);
- return NULL;
- }
- return inode;
- }
- unsigned long ext3_count_free_inodes (struct super_block * sb)
- {
- #ifdef EXT3FS_DEBUG
- struct ext3_super_block * es;
- unsigned long desc_count, bitmap_count, x;
- int bitmap_nr;
- struct ext3_group_desc * gdp;
- int i;
- lock_super (sb);
- es = sb->u.ext3_sb.s_es;
- desc_count = 0;
- bitmap_count = 0;
- gdp = NULL;
- for (i = 0; i < sb->u.ext3_sb.s_groups_count; i++) {
- gdp = ext3_get_group_desc (sb, i, NULL);
- if (!gdp)
- continue;
- desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
- bitmap_nr = load_inode_bitmap (sb, i);
- if (bitmap_nr < 0)
- continue;
- x = ext3_count_free (sb->u.ext3_sb.s_inode_bitmap[bitmap_nr],
- EXT3_INODES_PER_GROUP(sb) / 8);
- printk ("group %d: stored = %d, counted = %lun",
- i, le16_to_cpu(gdp->bg_free_inodes_count), x);
- bitmap_count += x;
- }
- printk("ext3_count_free_inodes: stored = %lu, computed = %lu, %lun",
- le32_to_cpu(es->s_free_inodes_count), desc_count, bitmap_count);
- unlock_super (sb);
- return desc_count;
- #else
- return le32_to_cpu(sb->u.ext3_sb.s_es->s_free_inodes_count);
- #endif
- }
- #ifdef CONFIG_EXT3_CHECK
- /* Called at mount-time, super-block is locked */
- void ext3_check_inodes_bitmap (struct super_block * sb)
- {
- struct ext3_super_block * es;
- unsigned long desc_count, bitmap_count, x;
- int bitmap_nr;
- struct ext3_group_desc * gdp;
- int i;
- es = sb->u.ext3_sb.s_es;
- desc_count = 0;
- bitmap_count = 0;
- gdp = NULL;
- for (i = 0; i < sb->u.ext3_sb.s_groups_count; i++) {
- gdp = ext3_get_group_desc (sb, i, NULL);
- if (!gdp)
- continue;
- desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
- bitmap_nr = load_inode_bitmap (sb, i);
- if (bitmap_nr < 0)
- continue;
- x = ext3_count_free (sb->u.ext3_sb.s_inode_bitmap[bitmap_nr],
- EXT3_INODES_PER_GROUP(sb) / 8);
- if (le16_to_cpu(gdp->bg_free_inodes_count) != x)
- ext3_error (sb, "ext3_check_inodes_bitmap",
- "Wrong free inodes count in group %d, "
- "stored = %d, counted = %lu", i,
- le16_to_cpu(gdp->bg_free_inodes_count), x);
- bitmap_count += x;
- }
- if (le32_to_cpu(es->s_free_inodes_count) != bitmap_count)
- ext3_error (sb, "ext3_check_inodes_bitmap",
- "Wrong free inodes count in super block, "
- "stored = %lu, counted = %lu",
- (unsigned long)le32_to_cpu(es->s_free_inodes_count),
- bitmap_count);
- }
- #endif