From: Ingo Molnar <mingo@elte.hu>
Date: Tue, 10 Mar 2009 18:02:30 +0000 (+0100)
Subject: x86, sched_clock(): mark variables read-mostly
X-Git-Tag: v2.6.30-rc1~658^2~8^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f24ade3a3332811a512ed3b6c6aa69486719b1d8;p=pandora-kernel.git

x86, sched_clock(): mark variables read-mostly

Impact: micro-optimization

There's a number of variables in the sched_clock() path that are
in .data/.bss - but not marked __read_mostly. This creates the
danger of accidental false cacheline sharing with some other,
write-often variable.

So mark them __read_mostly.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
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