[2/3] ocfs2: clear journal dirty flag after shutdown journal
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Message ID 20181121020023.3034-3-junxiao.bi@oracle.com
State New
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Series
  • [1/3] ocfs2: fix panic due to unrecovered local alloc
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Commit Message

Junxiao Bi Nov. 21, 2018, 2 a.m. UTC
Dirty flag of the journal should be cleared at the last stage of umount,
if do it before jbd2_journal_destroy(), then some metadata in uncommitted
transaction could be lost due to io error, but as dirty flag of journal
was already cleared, we can't find that until run a full fsck. This may
cause system panic or other corruption.

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Yiwen Jiang <jiangyiwen@huawei.com>
Reviewed-by: Joseph Qi <jiangqi903@gmail.com>
Cc: Jun Piao <piaojun@huawei.com>
---
 fs/ocfs2/journal.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Patch
diff mbox series

diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index b63c97f4318e..46fd3ef2cf21 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -1017,7 +1017,8 @@  void ocfs2_journal_shutdown(struct ocfs2_super *osb)
 			mlog_errno(status);
 	}
 
-	if (status == 0) {
+	/* Shutdown the kernel journal system */
+	if (!jbd2_journal_destroy(journal->j_journal) && !status) {
 		/*
 		 * Do not toggle if flush was unsuccessful otherwise
 		 * will leave dirty metadata in a "clean" journal
@@ -1026,9 +1027,6 @@  void ocfs2_journal_shutdown(struct ocfs2_super *osb)
 		if (status < 0)
 			mlog_errno(status);
 	}
-
-	/* Shutdown the kernel journal system */
-	jbd2_journal_destroy(journal->j_journal);
 	journal->j_journal = NULL;
 
 	OCFS2_I(inode)->ip_open_count--;