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authorChangwei Ge <ge.changwei@h3c.com>2018-01-31 16:15:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-01-31 17:18:35 -0800
commite75ed71be4f2f7508bd7d1d993d34095a10ca447 (patch)
tree52500d9c656268adc73ed0b9904ffc4ac045d4d7 /fs/ocfs2
parentc4c2416ab0d656539cca5de4ae0a2ba8ec3d9eca (diff)
downloadlinux-next-e75ed71be4f2f7508bd7d1d993d34095a10ca447.tar.gz
ocfs2: unlock bh_state if bg check fails
We should unlock bh_stat if bg->bg_free_bits_count > bg->bg_bits Link: http://lkml.kernel.org/r/1516843095-23680-1-git-send-email-ge.changwei@h3c.com Signed-off-by: Changwei Ge <ge.changwei@h3c.com> Suggested-by: Jan Kara <jack@suse.cz> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Mark Fasheh <mfasheh@versity.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joseph Qi <jiangqi903@gmail.com> Cc: Changwei Ge <ge.changwei@h3c.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/suballoc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 2d8d31c85f45..d8f5f6ce99dc 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -2438,6 +2438,8 @@ static int ocfs2_block_group_clear_bits(handle_t *handle,
}
le16_add_cpu(&bg->bg_free_bits_count, num_bits);
if (le16_to_cpu(bg->bg_free_bits_count) > le16_to_cpu(bg->bg_bits)) {
+ if (undo_fn)
+ jbd_unlock_bh_state(group_bh);
return ocfs2_error(alloc_inode->i_sb, "Group descriptor # %llu has bit count %u but claims %u are freed. num_bits %d\n",
(unsigned long long)le64_to_cpu(bg->bg_blkno),
le16_to_cpu(bg->bg_bits),