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0089fa9831
The mmap_pages default value is not power of 2 (UINT_MAX). Together with perf_evlist__mmap function returning error value different from EPERM, we get misleading error message: "--mmap_pages/-m value must be a power of two." Fixing this by adding extra check for UINT_MAX value for this error condition. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1350743599-4805-12-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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