From: Li Wang <liwang@ubuntukylin.com>
Date: Wed, 13 Nov 2013 07:22:14 +0000 (+0800)
Subject: ceph: Avoid data inconsistency due to d-cache aliasing in readpage()
X-Git-Tag: v3.13-rc5~36^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=56f91aad69444d650237295f68c195b74d888d95;p=pandora-kernel.git

ceph: Avoid data inconsistency due to d-cache aliasing in readpage()

If the length of data to be read in readpage() is exactly
PAGE_CACHE_SIZE, the original code does not flush d-cache
for data consistency after finishing reading. This patches fixes
this.

Signed-off-by: Li Wang <liwang@ubuntukylin.com>
Signed-off-by: Sage Weil <sage@inktank.com>
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