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.
Paolo
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