perf/x86: Update rdpmc_always_available static key to the modern API

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No changes in refcount semantics -- use DEFINE_STATIC_KEY_FALSE()
for initialization and replace:

  static_key_slow_inc|dec()   =>   static_branch_inc|dec()
  static_key_false()          =>   static_branch_unlikely()

Added a '_key' suffix to rdpmc_always_available, for better self-documentation.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: akpm@linux-foundation.org
Link: http://lkml.kernel.org/r/20180326210929.5244-5-dave@stgolabs.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>

...

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Davidlohr Bueso 2018-03-26 14:09:27 -07:00 • committed by Ingo Molnar

parent a0ac7b3ca9

commit 631fe154ed

2 changed files with 6 additions and 5 deletions

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6

arch/x86/events/core.c

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5

arch/x86/include/asm/mmu_context.h

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