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Uncore is a per package facility, but the code tries to mimick a per CPU facility with completely convoluted constructs. Simplify the whole machinery by tracking per package information. While at it, avoid the kfree/alloc dance when a CPU goes offline and online again. There is no point in freeing the box after it was allocated. We just keep proper refcounting and the first CPU which comes online in a package does the initialization/activation of the box. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andi Kleen <andi.kleen@intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Harish Chegondi <harish.chegondi@intel.com> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: linux-kernel@vger.kernel.org Link: http://lkml.kernel.org/r/20160222221011.622258933@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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| core.c | ||
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| perf_event.h | ||