From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 16 Oct 2013 22:06:46 +0000 (+0200)
Subject: perf: Change zero-padding of strings in perf_event_mmap_event()
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~41^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2c42cfbfe10872929c2ba1f8130e31063ff59b94;p=pandora-kernel.git

perf: Change zero-padding of strings in perf_event_mmap_event()

Oleg complained about the excessive 0-ing in perf_event_mmap_event(),
so try and be smarter about it while keeping it fairly fool proof and
avoid leaking random bits out to userspace.

Suggested-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-8jirlm99m6if2z13wd6rbyu6@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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