| To: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH 020/102] xfs: warn if direct reclaim tries to writeback pages |
| From: | Mel Gorman <mgorman@xxxxxxx> |
| Date: | Wed, 5 Sep 2012 12:32:42 +0100 |
| Cc: | Dave Chinner <david@xxxxxxxxxxxxx>, xfs@xxxxxxxxxxx |
| In-reply-to: | <20120827181742.GA13970@xxxxxxxxxxxxx> |
| References: | <1345698180-13612-1-git-send-email-david@xxxxxxxxxxxxx> <1345698180-13612-21-git-send-email-david@xxxxxxxxxxxxx> <20120827181742.GA13970@xxxxxxxxxxxxx> |
| User-agent: | Mutt/1.5.21 (2010-09-15) |
On Mon, Aug 27, 2012 at 02:17:42PM -0400, Christoph Hellwig wrote: > On Thu, Aug 23, 2012 at 03:01:38PM +1000, Dave Chinner wrote: > > From: Mel Gorman <mgorman@xxxxxxx> > > > > Upstream commit: 94054fa3fca1fd78db02cb3d68d5627120f0a1d4 > > > > Direct reclaim should never writeback pages. For now, handle the > > situation and warn about it. Ultimately, this will be a BUG_ON. > > Is this actually the case on 3.0-stable? > No, it is not. AFAIK, 3.0-stable does not contain [ee72886d: mm: vmscan: do not writeback filesystem pages in direct reclaim] which is the absolute minimum required for commit [94054fa3: xfs: warn if direct reclaim tries to writeback pages] to make sense. -- Mel Gorman SUSE Labs |
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