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Update comments about interrupted mutex locking.

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This commit is contained in:
David Xu 2006-08-28 07:09:27 +00:00
parent e8ea7f0260
commit a324b5ecd3
1 changed files with 5 additions and 12 deletions
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17
sys/kern/kern_umtx.c
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@ -642,9 +642,7 @@ do_lock(struct thread *td, struct umtx *umtx, uintptr_t id,
TIMESPEC_TO_TIMEVAL(&tv, &ts3);
}
}
/*
* This lets userland back off critical region if needed.
*/
/* Mutex locking is be restarted if it is interrupted. */
if (error == EINTR)
error = ERESTART;
return (error);
@ -771,6 +769,7 @@ do_wait(struct thread *td, struct umtx *umtx, uintptr_t id, struct timespec *tim
umtxq_unlock(&uq->uq_key);
}
umtx_key_release(&uq->uq_key);
/* Mutex locking is be restarted if it is interrupted. */
if (error == ERESTART)
error = EINTR;
return (error);
@ -931,9 +930,7 @@ do_lock_normal(struct thread *td, struct umutex *m, uint32_t flags,
TIMESPEC_TO_TIMEVAL(&tv, &ts3);
}
}
/*
* This lets userland back off critical region if needed.
*/
/* Mutex locking is be restarted if it is interrupted. */
if (error == EINTR)
error = ERESTART;
return (error);
@ -1560,9 +1557,7 @@ do_lock_pi(struct thread *td, struct umutex *m, uint32_t flags,
TIMESPEC_TO_TIMEVAL(&tv, &ts3);
}
}
/*
* This lets userland back off critical region if needed.
*/
/* Mutex locking is be restarted if it is interrupted. */
if (error == EINTR)
error = ERESTART;
return (error);
@ -1817,9 +1812,7 @@ do_lock_pp(struct thread *td, struct umutex *m, uint32_t flags,
TIMESPEC_TO_TIMEVAL(&tv, &ts3);
}
}
/*
* This lets userland back off critical region if needed.
*/
/* Mutex locking is be restarted if it is interrupted. */
if (error == EINTR)
error = ERESTART;
return (error);