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perf: Don't use -ENOSPC for out of PMU resources

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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>
This commit is contained in:
Peter Zijlstra
2011-11-09 17:56:37 +01:00
committed by Ingo Molnar
parent 1d5f003f5a
commit aa2bc1ade5
4 changed files with 13 additions and 13 deletions
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arch/x86/kernel/cpu/perf_event_p4.c
+1 -1
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@@ -1268,7 +1268,7 @@ reserve:
}
done:
return num ? -ENOSPC : 0;
return num ? -EINVAL : 0;
}
static __initconst const struct x86_pmu p4_pmu = {