git.baikalelectronics.ru Git - kernel.git/commit

author	Peter Zijlstra <a.p.zijlstra@chello.nl>
	Fri, 15 May 2009 13:19:27 +0000 (15:19 +0200)
committer	Ingo Molnar <mingo@elte.hu>
	Fri, 15 May 2009 13:26:56 +0000 (15:26 +0200)
commit	ded4b9b29d66633f64e96b0cbdb6c6e3adfe2718
tree	dccfe1ffac1202729238385923e74a8b5ebab979	tree \| snapshot
parent	3c102df2b81b8341b83ebffa50cc64e47baf07db	commit \| 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 \| history
kernel/perf_counter.c		diff \| blob \| history