From aa4a221875873d2a1f9656cb7fd7e545e952b4fa Mon Sep 17 00:00:00 2001
From: Vince Weaver <vweaver1@eecs.utk.edu>
Date: Fri, 3 Jun 2011 17:54:40 -0400
Subject: [PATCH] perf: Comment /proc/sys/kernel/perf_event_paranoid to be part
 of user ABI

Turns out that distro packages use this file as an indicator of
the perf event subsystem - this is easier to check for from scripts
than the existence of the system call.

This is easy enough to keep around for the kernel, so add a
comment to make sure it stays so.

Signed-off-by: Vince Weaver <vweaver1@eecs.utk.edu>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus@samba.org
Cc: acme@redhat.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/alpine.DEB.2.00.1106031751170.29381@cl320.eecs.utk.edu
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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