From: Kaixu Xia <xiakaixu@huawei.com>
Date: Tue, 27 Jan 2015 09:55:12 +0000 (+0800)
Subject: perf: Remove the extra validity check on nr_pages
X-Git-Tag: omap-for-v4.2/o2_dc~146^2~66^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=74390aa5567827add5058a3b26eff0ed06a629ba;p=pandora-kernel.git

perf: Remove the extra validity check on nr_pages

The function is_power_of_2() also do the check on nr_pages, so the first
check performed is unnecessary. On the other hand, the key point is to
ensure @nr_pages is a power-of-two number and mostly @nr_pages is a
nonzero value, so in the most cases, the function is_power_of_2() will
be called.

Signed-off-by: Kaixu Xia <xiakaixu@huawei.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Link: http://lkml.kernel.org/r/1422352512-75150-1-git-send-email-xiakaixu@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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