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    mutex: Move mutex spinning code from sched/core.c back to mutex.c · 41fcb9f2
    Waiman Long 提交于
    As mentioned by Ingo, the SCHED_FEAT_OWNER_SPIN scheduler
    feature bit was really just an early hack to make with/without
    mutex-spinning testable. So it is no longer necessary.
    
    This patch removes the SCHED_FEAT_OWNER_SPIN feature bit and
    move the mutex spinning code from kernel/sched/core.c back to
    kernel/mutex.c which is where they should belong.
    Signed-off-by: NWaiman Long <Waiman.Long@hp.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Chandramouleeswaran Aswin <aswin@hp.com>
    Cc: Davidlohr Bueso <davidlohr.bueso@hp.com>
    Cc: Norton Scott J <scott.norton@hp.com>
    Cc: Rik van Riel <riel@redhat.com>
    Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
    Cc: David Howells <dhowells@redhat.com>
    Cc: Dave Jones <davej@redhat.com>
    Cc: Clark Williams <williams@redhat.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Link: http://lkml.kernel.org/r/1366226594-5506-2-git-send-email-Waiman.Long@hp.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
    41fcb9f2
sched.h 80.1 KB