[RFC PATCH 0/3] locking/mutex: Modifications to mutex

[Jason Low]

This patchset contains modifications to mutex.

Patch 1 further reduces unnecessary atomic xchg() operations upon entering
the mutex slowpath in mutex_lock().

Patch 2 corrects/updates the documentation on mutex optimistic spinning.

Patch 3 optimizes mutex trylock slowpath.

Jason Low (3):
  mutex: Try to acquire mutex only if it is unlocked
  mutex: Correct documentation on mutex optimistic spinning
  mutex: Optimize mutex trylock slowpath

 kernel/locking/mutex.c |   47 ++++++++++++++++++++++++++---------------------
 1 files changed, 26 insertions(+), 21 deletions(-)

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