Re: [PATCH v4.1 07/17] xfs: ratelimit unmount time per-buffer I/O error alert

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On Wed, May 06, 2020 at 07:05:48AM -0400, Brian Foster wrote:
> 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@xxxxxxxxxx>
> Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
> Reviewed-by: Allison Collins <allison.henderson@xxxxxxxxxx>
> ---
> 
> v4.1:
> - Add comment to document dependency on external permanent error
>   processing.

Looks good now. Thanks!

Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
-- 
Dave Chinner
david@xxxxxxxxxxxxx



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