Re: new dm-bufio

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Subject: Re: new dm-bufio
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue, 23 Aug 2011 14:54:23 -0400
Cc: Joe Thornber <thornber@xxxxxxxxxx>, "Alasdair G. Kergon" <agk@xxxxxxxxxx>
In-reply-to: <Pine.LNX.4.64.1108231012560.2629@hs20-bc2-1.build.redhat.com>
References: <Pine.LNX.4.64.1108221600510.26651@hs20-bc2-1.build.redhat.com> <20110823113048.GC5442@ubuntu> <Pine.LNX.4.64.1108231012560.2629@hs20-bc2-1.build.redhat.com>
Reply-to: device-mapper development <dm-devel@xxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)

FYI, the "shrinker" interface in include/linux/shrinker.h is how the
VM tells subsystems to shrink their memory usage.  It is used for
various slab caches, and the XFS buffercache in
fs/xfs/linux-2.6/xfs_buf.c

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