From: Sage Weil <sage@newdream.net>
Date: Tue, 13 Dec 2011 17:19:26 +0000 (-0800)
Subject: ceph: fix SEEK_CUR, SEEK_SET regression
X-Git-Tag: v3.2-rc6~20^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6a82c47aa84ab22cb5969a44105cca5358879d21;p=pandora-kernel.git

ceph: fix SEEK_CUR, SEEK_SET regression

Commit 06222e491e663dac939f04b125c9dc52126a75c4 got the if wrong so that
it always evaluates as true.  This is semantically harmless, but makes
SEEK_CUR and SEEK_SET needlessly query the server.

Rewrite the if to explicitly enumerate the cases we DO need a valid i_size
to make this code less fragile.

Reported-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Sage Weil <sage@newdream.net>
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