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(parent: 548e1dd) | patch
perf_counter: per user mlock gift
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Fri, 15 May 2009 13:19:27 +0000 (15:19 +0200)
committerIngo Molnar <mingo@elte.hu>
Fri, 15 May 2009 13:26:56 +0000 (15:26 +0200)
commit789f90fcf6b0b54e655740e9396c954378542c79
treedccfe1ffac1202729238385923e74a8b5ebab979tree | snapshot (tar.gz zip)
parent548e1ddf255b4ebfb4ef20c08936fd8d4deb3bd9commit | diff
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>
include/linux/sched.h diff | blob | blame | history
kernel/perf_counter.c diff | blob | blame | history