This patch add basic code to enable qspinlock on powerpc. qspinlock is
one kind of fairlock implemention. And seen some performance improvement
under some scenarios.
queued_spin_unlock() release the lock by just one write of NULL to the
->locked field which sits at different places in the two
This patch add basic code to enable qspinlock on powerpc. qspinlock is
one kind of fairlock implemention. And seen some performance improvement
under some scenarios.
queued_spin_unlock() release the lock by just one write of NULL to the
->locked field which sits at different places in the two
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