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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2011-11-09 17:56:37 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-11-14 13:01:24 +0100 |
| commit | aa2bc1ade59003a379ffc485d6da2d92ea3370a6 (patch) | |
| tree | 6d3551cbc594f6827682db9ab931e6e22a37fd6a /arch/x86/kernel/cpu/perf_event_p4.c | |
| parent | 1d5f003f5a964711853514b04ddc872eec0fdc7b (diff) | |
| download | blackbird-obmc-linux-aa2bc1ade59003a379ffc485d6da2d92ea3370a6.tar.gz blackbird-obmc-linux-aa2bc1ade59003a379ffc485d6da2d92ea3370a6.zip | |
perf: Don't use -ENOSPC for out of PMU resources
People (Linus) objected to using -ENOSPC to signal not having enough
resources on the PMU to satisfy the request. Use -EINVAL.
Requested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-xv8geaz2zpbjhlx0svmpp28n@git.kernel.org
[ merged to newer kernel, fixed up MIPS impact ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/perf_event_p4.c')
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event_p4.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c index 492bf1358a7c..ef484d9d0a25 100644 --- a/arch/x86/kernel/cpu/perf_event_p4.c +++ b/arch/x86/kernel/cpu/perf_event_p4.c @@ -1268,7 +1268,7 @@ reserve: } done: - return num ? -ENOSPC : 0; + return num ? -EINVAL : 0; } static __initconst const struct x86_pmu p4_pmu = { |
