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ocfs2: correct l_next_free_rec in online check

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Correct the value of l_next_free_rec to l_count during the online check,
as done in the check_el() function in ocfs2_tools.

Link: https://lkml.kernel.org/r/20250106023432.1320904-2-sunjunchao2870@gmail.com
Signed-off-by: Julian Sun <sunjunchao2870@gmail.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Julian Sun 2025-01-06 10:34:32 +08:00 • committed by Andrew Morton
parent 34bb50c423
commit fdbb6cd96e
1 changed files with 24 additions and 0 deletions
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24
fs/ocfs2/inode.c
View file

@ -200,6 +200,20 @@ bail:
return inode;
}
static int ocfs2_dinode_has_extents(struct ocfs2_dinode *di)
{
/* inodes flagged with other stuff in id2 */
if (di->i_flags & (OCFS2_SUPER_BLOCK_FL | OCFS2_LOCAL_ALLOC_FL |
OCFS2_CHAIN_FL | OCFS2_DEALLOC_FL))
return 0;
/* i_flags doesn't indicate when id2 is a fast symlink */
if (S_ISLNK(di->i_mode) && di->i_size && di->i_clusters == 0)
return 0;
if (di->i_dyn_features & OCFS2_INLINE_DATA_FL)
return 0;
return 1;
}
/*
* here's how inodes get read from disk:
@ -1547,6 +1561,16 @@ static int ocfs2_filecheck_repair_inode_block(struct super_block *sb,
le32_to_cpu(di->i_fs_generation));
}
if (ocfs2_dinode_has_extents(di) &&
le16_to_cpu(di->id2.i_list.l_next_free_rec) > le16_to_cpu(di->id2.i_list.l_count)) {
di->id2.i_list.l_next_free_rec = di->id2.i_list.l_count;
changed = 1;
mlog(ML_ERROR,
"Filecheck: reset dinode #%llu: l_next_free_rec to %u\n",
(unsigned long long)bh->b_blocknr,
le16_to_cpu(di->id2.i_list.l_next_free_rec));
}
if (changed || ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check)) {
ocfs2_compute_meta_ecc(sb, bh->b_data, &di->i_check);
mark_buffer_dirty(bh);