The patch titled
Subject: ocfs2: unlock bh_state if bg check fails
has been added to the -mm tree. Its filename is
ocfs2-unlock-bh_state-if-bg-check-fails.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ocfs2-unlock-bh_state-if-bg-check-fails.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ocfs2-unlock-bh_state-if-bg-check-fails.patch
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------------------------------------------------------
From: Changwei Ge <ge.changwei@xxxxxxx>
Subject: 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@xxxxxxx
Signed-off-by: Changwei Ge <ge.changwei@xxxxxxx>
Suggested-by: Jan Kara <jack@xxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Cc: Joseph Qi <jiangqi903@xxxxxxxxx>
Cc: Changwei Ge <ge.changwei@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/suballoc.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN fs/ocfs2/suballoc.c~ocfs2-unlock-bh_state-if-bg-check-fails fs/ocfs2/suballoc.c
--- a/fs/ocfs2/suballoc.c~ocfs2-unlock-bh_state-if-bg-check-fails
+++ a/fs/ocfs2/suballoc.c
@@ -2438,6 +2438,8 @@ static int ocfs2_block_group_clear_bits(
}
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),
_
Patches currently in -mm which might be from ge.changwei@xxxxxxx are
ocfs2-dlm-clean-dead-code-up.patch
ocfs2-cluster-neaten-a-member-of-o2net_msg_handler.patch
ocfs2-clean-dead-code-in-suballocc.patch
ocfs2-clean-dead-code-up-in-allocc.patch
ocfs2-make-metadata-estimation-accurate-and-clear.patch
ocfs2-try-to-reuse-extent-block-in-dealloc-without-meta_alloc.patch
ocfs2-unlock-bh_state-if-bg-check-fails.patch
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