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Code Issues Releases Wiki Activity

fix typo: &lock-val to &lock->val

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This commit is contained in:
Li Yilong 2020-09-12 15:21:58 +08:00
parent acfbdf7385
commit af5829bf84
1 changed files with 2 additions and 2 deletions
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4
SyncPrim/linux-sync-2.md
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@ -249,7 +249,7 @@ which compares the `old` with the value pointed to by `ptr`. If they differ, it
Let's back to the `queued_spin_lock` function. Assuming that we are the first one who tried to acquire the lock, the `val` will be zero and we will return from the `queued_spin_lock` function:
```C
val = atomic_cmpxchg_acquire(&lock-val, 0, _Q_LOCKED_VAL);
val = atomic_cmpxchg_acquire(&lock->val, 0, _Q_LOCKED_VAL);
if (likely(val == 0))
return;
```
@ -264,7 +264,7 @@ void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
...
if (val == _Q_PENDING_VAL) {
int cnt = _Q_PENDING_LOOPS;
val = atomic_cond_read_relaxed(&lock-val,
val = atomic_cond_read_relaxed(&lock->val,
(VAL != _Q_PENDING_VAL) || !cnt--);
}
...