perf/x86/intel/lbr: Demand proper privileges for PERF_SAMPLE_BRANCH_KERNEL
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Fri, 3 May 2013 12:11:25 +0000 (14:11 +0200)
committerIngo Molnar <mingo@kernel.org>
Sun, 5 May 2013 08:58:11 +0000 (10:58 +0200)
commit7cc23cd6c0c7d7f4bee057607e7ce01568925717
tree9d2b46d8cc614f6ad11ed82b0f93e855e8531f42
parent6e15eb3ba6c0249c9e8c783517d131b47db995ca
perf/x86/intel/lbr: Demand proper privileges for PERF_SAMPLE_BRANCH_KERNEL

We should always have proper privileges when requesting kernel
data.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: <stable@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: eranian@google.com
Link: http://lkml.kernel.org/r/20130503121256.230745028@chello.nl
[ Fix build error reported by fengguang.wu@intel.com, propagate error code back. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/n/tip-v0x9ky3ahzr6nm3c6ilwrili@git.kernel.org
arch/x86/kernel/cpu/perf_event_intel_lbr.c