From: Sage Weil <sage@newdream.net>
Date: Wed, 3 Aug 2011 16:58:09 +0000 (-0700)
Subject: ceph: make readpages fully async
X-Git-Tag: v3.2-rc1~126^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c272194e66e91830b90f6202e61c69f8590f1eb;p=pandora-kernel.git

ceph: make readpages fully async

When we get a ->readpages() aop, submit async reads for all page ranges
in the provided page list.  Lock the pages immediately, so that VFS/MM
will block until the reads complete.

Signed-off-by: Sage Weil <sage@newdream.net>
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