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[PATCH 4.9 15/72] xfs: reset b_first_retry_time when clear the retry status of xfs_buf_t

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  [PATCH 4.9 15/72] xfs: reset b_first_retry_time when clear the retry status of xfs_buf_t Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-04-06 11:30 +0200

#1617757 — [PATCH 4.9 15/72] xfs: reset b_first_retry_time when clear the retry status of xfs_buf_t

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hou Tao <houtao1@huawei.com>

commit 4dd2eb633598cb6a5a0be2fd9a2be0819f5eeb5f upstream.

After successful IO or permanent error, b_first_retry_time also
needs to be cleared, else the invalid first retry time will be
used by the next retry check.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/xfs/xfs_buf_item.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -1162,6 +1162,7 @@ xfs_buf_iodone_callbacks(
 	 */
 	bp->b_last_error = 0;
 	bp->b_retries = 0;
+	bp->b_first_retry_time = 0;
 
 	xfs_buf_do_callbacks(bp);
 	bp->b_fspriv = NULL;

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