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Date: Tue, 5 Feb 2019 09:57:02 -0800
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH 10/10] xfs: cache unlinked pointers in an rhashtable
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To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Brian Foster <bfoster@redhat.com>, linux-xfs@vger.kernel.org

On Tue, Feb 05, 2019 at 09:53:09AM -0800, Darrick J. Wong wrote:
> Good point, we could be much more resilient to backref cache failures
> since we do have the option of doing it the slow way.

I don't think there is any failure that can happen during normal
operation as long as we use KM_SLEEP..