From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Fri, 15 May 2009 13:19:27 +0000 (+0200)
Subject: perf_counter: per user mlock gift
X-Git-Tag: v2.6.31-rc1~383^2~269
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=789f90fcf6b0b54e655740e9396c954378542c79;p=pandora-kernel.git

perf_counter: per user mlock gift

Instead of a per-process mlock gift for perf-counters, use a
per-user gift so that there is less of a DoS potential.

[ Impact: allow less worst-case unprivileged memory consumption ]

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20090515132018.496182835@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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