Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf tools: Fix permission checks perf_events: Fix some typo in the perf events config description
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@ -937,7 +937,7 @@ config PERF_EVENTS
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Enable kernel support for various performance events provided
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by software and hardware.
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Software events are supported either build-in or via the
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Software events are supported either built-in or via the
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use of generic tracepoints.
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Most modern CPUs support performance events via performance
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@ -949,7 +949,7 @@ config PERF_EVENTS
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used to profile the code that runs on that CPU.
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The Linux Performance Event subsystem provides an abstraction of
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these software and hardware cevent apabilities, available via a
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these software and hardware event capabilities, available via a
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system call and used by the "perf" utility in tools/perf/. It
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provides per task and per CPU counters, and it provides event
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capabilities on top of those.
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@ -426,7 +426,7 @@ try_again:
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if (fd[nr_cpu][counter] < 0) {
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int err = errno;
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if (err == EPERM)
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if (err == EPERM || err == EACCES)
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die("Permission error - are you root?\n");
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else if (err == ENODEV && profile_cpu != -1)
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die("No such device - did you specify an out-of-range profile CPU?\n");
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@ -1027,7 +1027,7 @@ try_again:
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if (fd[i][counter] < 0) {
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int err = errno;
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if (err == EPERM)
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if (err == EPERM || err == EACCES)
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die("No permission - are you root?\n");
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/*
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* If it's cycles then fall back to hrtimer
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