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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 23:58:39 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-01 08:37:27 +0100
commit1aa6cfd33df492939b0be15ebdbcff1f8ae5ddb6 (patch)
treea04da1bdff7300758f2b0abbc9585cafea8c6db5 /tools/testing
parentdd86e373e09fb16b83e8adf5c48c421a4ca76468 (diff)
perf/x86/intel/uncore: Clean up hotplug conversion fallout
The recent conversion to the hotplug state machine kept two mechanisms from the original code: 1) The first_init logic which adds the number of online CPUs in a package to the refcount. That's wrong because the callbacks are executed for all online CPUs. Remove it so the refcounting is correct. 2) The on_each_cpu() call to undo box->init() in the error handling path. That's bogus because when the prepare callback fails no box has been initialized yet. Remove it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Fixes: 1a246b9f58c6 ("perf/x86/intel/uncore: Convert to hotplug state machine") Link: http://lkml.kernel.org/r/20170131230141.298032324@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
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