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authorKan Liang <Kan.liang@intel.com>2018-02-26 10:17:10 -0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-03-05 11:48:56 -0300
commit626af862da9c650e80bdea44684be9334f8eb75b (patch)
treee6f593de1f0f52f746dd1c9d3a583202ec81cd8c /certs
parentf6d3f35e006496c282ccbb67494d90b04f6cba10 (diff)
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perf top: Fix annoying fallback message on older kernels
On older (e.g. v4.4) kernels, an annoying fallback message can be observed in 'perf top': ┌─Warning:──────────────────────┐ │fall back to non-overwrite mode│ │ │ │ │ │Press any key... │ └───────────────────────────────┘ The 'perf top' utility has been changed to overwrite mode since commit ebebbf082357 ("perf top: Switch default mode to overwrite mode"). For older kernels which don't have overwrite mode support, 'perf top' will fall back to non-overwrite mode and print out the fallback message using ui__warning(), which needs user's input to close. The fallback message is not critical for end users. Turning it to debug message which is printed when running with -vv. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Kan Liang <kan.liang@intel.com> Cc: Kan Liang <kan.liang@intel.com> Fixes: ebebbf082357 ("perf top: Switch default mode to overwrite mode") Link: http://lkml.kernel.org/r/1519669030-176549-1-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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