From: Andi Kleen <andi@firstfloor.org>
To: Dave Chinner <david@fromorbit.com>
Cc: aelder@sgi.com, xfs@oss.sgi.com
Subject: Re: xfs: outstanding patches for 2.6.39
Date: Wed, 23 Mar 2011 00:01:17 -0700 [thread overview]
Message-ID: <m24o6u48xu.fsf@firstfloor.org> (raw)
In-Reply-To: <1300860870-15471-1-git-send-email-david@fromorbit.com> (Dave Chinner's message of "Wed, 23 Mar 2011 17:14:24 +1100")
Dave Chinner <david@fromorbit.com> writes:
> Of course, the major patch in this series is the conversion of the
> buffer cache to using kmalloc and get_free_page() directly rather
> than using the page cache. This has many benefits and I haven't
> found any regressions due to making that change yet.
One (somewhat obscure) regression will be that you won't be able to
recover from uncorrected memory errors in the buffer cache anymore.
Previously memory_failure() could just drop it transparently when that
happens and the page is currently not used. This is usually only a
problem if there's significant memory tied up in it.
-Andi
--
ak@linux.intel.com -- Speaking for myself only
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next prev parent reply other threads:[~2011-03-23 6:59 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-23 6:14 xfs: outstanding patches for 2.6.39 Dave Chinner
2011-03-23 6:14 ` [PATCH 1/6] xfs: preallocation transactions do not need to be synchronous Dave Chinner
2011-03-24 17:18 ` brian.foster
2011-03-24 22:53 ` [PATCH V2] " Dave Chinner
2011-03-25 21:00 ` [PATCH 1/6] " Alex Elder
2011-03-25 22:02 ` Dave Chinner
2011-03-23 6:14 ` [PATCH 2/6] vmap: flush vmap aliases when mapping fails Dave Chinner
2011-03-25 21:00 ` Alex Elder
2011-03-23 6:14 ` [PATCH 3/6] xfs: introduce inode cluster buffer trylocks for xfs_iflush Dave Chinner
2011-03-25 21:00 ` Alex Elder
2011-03-23 6:14 ` [PATCH 4/6] xfs: xfs_trans_read_buf() should return an error on failure Dave Chinner
2011-03-23 11:53 ` Christoph Hellwig
2011-03-25 21:01 ` Alex Elder
2011-03-23 6:14 ` [PATCH 5/6] xfs: register the inode cache shrinker before quotachecks Dave Chinner
2011-03-23 21:24 ` Arkadiusz Miskiewicz
2011-03-25 12:56 ` Michael Weissenbacher
2011-03-25 23:08 ` Dave Chinner
2011-03-25 21:01 ` Alex Elder
2011-03-23 6:14 ` [PATCH 6/6] xfs: stop using the page cache to back the buffer cache Dave Chinner
2011-03-25 21:02 ` Alex Elder
2011-03-25 22:04 ` Dave Chinner
2011-03-23 7:01 ` Andi Kleen [this message]
2011-03-23 11:38 ` xfs: outstanding patches for 2.6.39 Dave Chinner
2011-03-23 16:05 ` Andi Kleen
2011-03-23 22:48 ` Dave Chinner
2011-03-23 11:18 ` Christoph Hellwig
2011-03-23 11:38 ` Dave Chinner
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