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authorAdrian Hunter <adrian.hunter@intel.com>2013-12-11 14:36:23 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-12-13 10:30:20 -0300
commit1a47245d2f3bf6276c95cd37901b562962d6ae47 (patch)
tree0df8a19d1170beaea788b629c7cff52201a80cae /tools/perf/util/header.c
parentc506c96b61fa96c9a52ad4d25e895e45c1692650 (diff)
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perf tools: Add perf_event_paranoid()
Add a function to return the value of /proc/sys/kernel/perf_event_paranoid. This will be used to determine default values for mmap size because perf is not subject to mmap limits when perf_event_paranoid is less than zero. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1386765443-26966-12-git-send-email-alexander.shishkin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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