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ocfs2: clear journal dirty flag after shutdown journal

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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.

Link: http://lkml.kernel.org/r/20181121020023.3034-3-junxiao.bi@oracle.com
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>
Cc: Changwei Ge <ge.changwei@h3c.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@versity.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Junxiao Bi 2018-12-28 00:32:53 -08:00 committed by Linus Torvalds
parent 532e1e54c8
commit d85400af79
1 changed files with 2 additions and 4 deletions
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6
fs/ocfs2/journal.c
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@ -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--;