diff options
| author | Brian Foster <bfoster@redhat.com> | 2020-05-06 13:25:21 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-05-07 08:27:46 -0700 |
| commit | 61948b6fb276ad95ad63f82863e607719a31a628 (patch) | |
| tree | b62dd5fc36f4e79a44df80b8e8e55769301e2f22 /fs | |
| parent | f9bccfcc3b59b9aba64791ab3a2bfefe681ab75b (diff) | |
xfs: ratelimit unmount time per-buffer I/O error alert
At unmount time, XFS emits an alert 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.
Now that we have a ratelimit mechanism specifically for buffer
alerts, reuse it for the per-buffer alerts in xfs_wait_buftarg().
Also lift the final repair message out of the loop so it always
prints and assert that the metadata error handling code has shut
down the fs.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/xfs_buf.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 594d5e1df6f8..3918270f4eab 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1657,7 +1657,8 @@ xfs_wait_buftarg( struct xfs_buftarg *btp) { LIST_HEAD(dispose); - int loop = 0; + int loop = 0; + bool write_fail = false; /* * First wait on the buftarg I/O count for all in-flight buffers to be @@ -1685,17 +1686,29 @@ 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, + write_fail = true; + xfs_buf_alert_ratelimited(bp, + "XFS: Corruption Alert", "Corruption Alert: Buffer at daddr 0x%llx had permanent write failures!", (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); } if (loop++ != 0) delay(100); } + + /* + * If one or more failed buffers were freed, that means dirty metadata + * was thrown away. This should only ever happen after I/O completion + * handling has elevated I/O error(s) to permanent failures and shuts + * down the fs. + */ + if (write_fail) { + ASSERT(XFS_FORCED_SHUTDOWN(btp->bt_mount)); + xfs_alert(btp->bt_mount, + "Please run xfs_repair to determine the extent of the problem."); + } } static enum lru_status |