On Wed, Jun 18, 2014 at 01:39:52PM +0200, Paolo Bonzini wrote: > Il 15/06/2014 14:47, Peter Zijlstra ha scritto: > > > >- for (;;) { > >- new = (val & ~_Q_PENDING_MASK) | _Q_LOCKED_VAL; > >- > >- old = atomic_cmpxchg(&lock->val, val, new); > >- if (old == val) > >- break; > >- > >- val = old; > >- } > >+ clear_pending_set_locked(lock, val); > > return; > > > Might as well add clear_pending_set_locked already in patch 3. Patch 4, if anywhere.
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