[Ocfs2-devel] [PATCH] ocfs2: unlock bh_state if bg check fails

[Changwei Ge]

We should unlock bh_stat if bg->bg_free_bits_count > bg->bg_bits

Suggested-by: Jan Kara <jack at suse.cz>
Signed-off-by: Changwei Ge <ge.changwei at h3c.com>
---
 fs/ocfs2/suballoc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 71f22c8..6fee797 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -2441,6 +2441,8 @@ 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),
-- 
2.7.4