s390/uaccess, locking/static_keys: employ static_branch_likely()
Use the new static_branch_likely() primitive to make sure that the most likely case is executed without taking an unconditional branch. This wasn't possible with the old jump label primitives. Signed-off-by:Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Link: http://lkml.kernel.org/r/20150729064600.GB3953@osiris Signed-off-by:
Ingo Molnar <mingo@kernel.org>
parent
3bbfafb7
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