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lost wake up (?) futex fix

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Balazs Gerofi
2012-05-19 16:35:52 +09:00
parent 38a0bde75e
commit 9f1d1c712d
1 changed files with 5 additions and 5 deletions
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10
kernel/futex.c
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@ -231,15 +231,15 @@ static int futex_wait(uint32_t __user *uaddr, uint32_t val,
status = -EWOULDBLOCK; status = -EWOULDBLOCK;
goto error; goto error;
} }
/* Add ourself to the futex queue and drop our lock on it */
queue_me(&futex, queue);
queue_unlock(queue, irqflags);
/* Add ourself to the futex's waitq and go to sleep */ /* Add ourself to the futex's waitq and go to sleep */
cpu_local_var(current)->status = PS_INTERRUPTIBLE; cpu_local_var(current)->status = PS_INTERRUPTIBLE;
waitq_add_entry(&futex.waitq, &wait); waitq_add_entry(&futex.waitq, &wait);
/* Add ourself to the futex queue and drop our lock on it */
queue_me(&futex, queue);
queue_unlock(queue, irqflags);
if (!list_empty(&futex.link)) { if (!list_empty(&futex.link)) {
// We don't have timers for now, let's sleep forever, // We don't have timers for now, let's sleep forever,
// and pretend we were woken up // and pretend we were woken up