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From: Brian Foster <bfoster@redhat.com>
To: linux-xfs@vger.kernel.org
Subject: [PATCH 05/12] xfs: ratelimit unmount time per-buffer I/O error warning
Date: Fri, 17 Apr 2020 11:08:52 -0400	[thread overview]
Message-ID: <20200417150859.14734-6-bfoster@redhat.com> (raw)
In-Reply-To: <20200417150859.14734-1-bfoster@redhat.com>

At unmount time, XFS emits a warning for every in-core buffer that
might have undergone a write error. In practice this behavior is
probably reasonable given that the filesystem is likely short lived
once I/O errors begin to occur consistently. Under certain test or
otherwise expected error conditions, this can spam the logs and slow
down the unmount. Ratelimit the warning to prevent this problem
while still informing the user that errors have occurred.

Signed-off-by: Brian Foster <bfoster@redhat.com>
---
 fs/xfs/xfs_buf.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 93942d8e35dd..5120fed06075 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1685,11 +1685,10 @@ xfs_wait_buftarg(
 			bp = list_first_entry(&dispose, struct xfs_buf, b_lru);
 			list_del_init(&bp->b_lru);
 			if (bp->b_flags & XBF_WRITE_FAIL) {
-				xfs_alert(btp->bt_mount,
-"Corruption Alert: Buffer at daddr 0x%llx had permanent write failures!",
+				xfs_alert_ratelimited(btp->bt_mount,
+"Corruption Alert: Buffer at daddr 0x%llx had permanent write failures!\n"
+"Please run xfs_repair to determine the extent of the problem.",
 					(long long)bp->b_bn);
-				xfs_alert(btp->bt_mount,
-"Please run xfs_repair to determine the extent of the problem.");
 			}
 			xfs_buf_rele(bp);
 		}
-- 
2.21.1


  parent reply	other threads:[~2020-04-17 15:09 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-17 15:08 [PATCH 00/12] xfs: flush related error handling cleanups Brian Foster
2020-04-17 15:08 ` [PATCH 01/12] xfs: refactor failed buffer resubmission into xfsaild Brian Foster
2020-04-17 22:37   ` Allison Collins
2020-04-20  2:45   ` Dave Chinner
2020-04-20 13:58     ` Brian Foster
2020-04-20 22:19       ` Dave Chinner
2020-04-17 15:08 ` [PATCH 02/12] xfs: factor out buffer I/O failure simulation code Brian Foster
2020-04-17 22:37   ` Allison Collins
2020-04-20  2:48   ` Dave Chinner
2020-04-20 13:58     ` Brian Foster
2020-04-17 15:08 ` [PATCH 03/12] xfs: always attach iflush_done and simplify error handling Brian Foster
2020-04-18  0:07   ` Allison Collins
2020-04-20 13:59     ` Brian Foster
2020-04-20  3:08   ` Dave Chinner
2020-04-20 14:00     ` Brian Foster
2020-04-17 15:08 ` [PATCH 04/12] xfs: remove unnecessary shutdown check from xfs_iflush() Brian Foster
2020-04-18  0:27   ` Allison Collins
2020-04-20  3:10   ` Dave Chinner
2020-04-17 15:08 ` Brian Foster [this message]
2020-04-20  3:19   ` [PATCH 05/12] xfs: ratelimit unmount time per-buffer I/O error warning Dave Chinner
2020-04-20 14:02     ` Brian Foster
2020-04-20 22:23       ` Dave Chinner
2020-04-21 12:13         ` Brian Foster
2020-04-20 18:50   ` Allison Collins
2020-04-17 15:08 ` [PATCH 06/12] xfs: remove duplicate verification from xfs_qm_dqflush() Brian Foster
2020-04-20  3:53   ` Dave Chinner
2020-04-20 14:02     ` Brian Foster
2020-04-20 22:31       ` Dave Chinner
2020-04-17 15:08 ` [PATCH 07/12] xfs: abort consistently on dquot flush failure Brian Foster
2020-04-20  3:54   ` Dave Chinner
2020-04-20 18:50   ` Allison Collins
2020-04-17 15:08 ` [PATCH 08/12] xfs: remove unnecessary quotaoff intent item push handler Brian Foster
2020-04-20  3:58   ` Dave Chinner
2020-04-20 14:02     ` Brian Foster
2020-04-17 15:08 ` [PATCH 09/12] xfs: elide the AIL lock on log item failure tracking Brian Foster
2020-04-17 15:08 ` [PATCH 10/12] xfs: clean up AIL log item removal functions Brian Foster
2020-04-20  4:32   ` Dave Chinner
2020-04-20 14:03     ` Brian Foster
2020-04-17 15:08 ` [PATCH 11/12] xfs: remove unused iflush stale parameter Brian Foster
2020-04-20  4:34   ` Dave Chinner
2020-04-20 19:19   ` Allison Collins
2020-04-17 15:08 ` [PATCH 12/12] xfs: random buffer write failure errortag Brian Foster
2020-04-20  4:37   ` Dave Chinner
2020-04-20 14:04     ` Brian Foster
2020-04-20 22:42   ` Allison Collins
2020-04-19 22:53 ` [PATCH 00/12] xfs: flush related error handling cleanups Dave Chinner
2020-04-20 14:06   ` Brian Foster
2020-04-20 22:53     ` Dave Chinner

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