From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Mon, 21 Nov 2011 10:43:53 +0000 (+0100)
Subject: perf: Extend the mmap control page with time (TSC) fields
X-Git-Tag: v3.4-rc1~192^2~25^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e3f3541c19c89a4daae39300defba68943301949;p=pandora-kernel.git

perf: Extend the mmap control page with time (TSC) fields

Extend the mmap control page with fields so that userspace can compute
time deltas relative to the provided time fields.

Currently only implemented for x86 with constant and nonstop TSC.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Arun Sharma <asharma@fb.com>
Link: http://lkml.kernel.org/n/tip-3u1jucza77j3wuvs0x2bic0f@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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