From: Andreas Gruenbacher <andreas.gruenbacher@gmail.com>
Date: Tue, 15 Jul 2014 19:10:52 +0000 (+0200)
Subject: locking/lockdep: Only ask for /proc/lock_stat output when available
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~179^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=acf59377267b5a74818e76873d0670b0ca6cf2fe;p=pandora-kernel.git

locking/lockdep: Only ask for /proc/lock_stat output when available

When lockdep turns itself off, the following message is logged:

  Please attach the output of /proc/lock_stat to the bug report

Omit this message when CONFIG_LOCK_STAT is off, and /proc/lock_stat
doesn't exist.

Signed-off-by: Andreas Gruenbacher <andreas.gruenbacher@gmail.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1405451452-3824-1-git-send-email-andreas.gruenbacher@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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