diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-06-28 19:27:21 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-06-28 19:27:21 -0700 |
| commit | 1f9489be025732fa210de4e6cfd9bd4440741f74 (patch) | |
| tree | 90a07886d3f93aa67a44da8cd753442d63a41197 /fs/xfs | |
| parent | 366fc4b898b3ca999b26d7c9fab92cb31ce4ad2b (diff) | |
| download | linux-1f9489be025732fa210de4e6cfd9bd4440741f74.tar.bz2 | |
xfs: don't use REQ_PREFLUSH for split log writes
If we have to split a log write because it wraps the end of the log we
can't just use REQ_PREFLUSH to flush before the first log write,
as the writes might get reordered somewhere in the I/O stack. Issue
a manual flush in that case so that the ordering of the two log I/Os
doesn't matter.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_log.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 49e7f645cbc1..99509d23265f 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1904,7 +1904,7 @@ xlog_sync( * synchronously here; for an internal log we can simply use the block * layer state machine for preflushes. */ - if (log->l_mp->m_logdev_targp != log->l_mp->m_ddev_targp) + if (log->l_mp->m_logdev_targp != log->l_mp->m_ddev_targp || split) xfs_blkdev_issue_flush(log->l_mp->m_ddev_targp); else bp->b_flags |= XBF_FLUSH; |