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nptl: Replace lll_futex_wake with futex-internal.h

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The idea is to make NPTL implementation to use on the functions
provided by futex-internal.h.

Checked on x86_64-linux-gnu and i686-linux-gnu.

Reviewed-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Adhemerval Zanella 2020-11-23 10:38:12 -03:00
parent 2a45be88ed
commit b45b1c5ba1
3 changed files with 7 additions and 12 deletions
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4
nptl/pthread_mutex_setprioceiling.c
View file

@ -116,8 +116,8 @@ pthread_mutex_setprioceiling (pthread_mutex_t *mutex, int prioceiling,
| (prioceiling << PTHREAD_MUTEX_PRIO_CEILING_SHIFT);
atomic_full_barrier ();
lll_futex_wake (&mutex->__data.__lock, INT_MAX,
PTHREAD_MUTEX_PSHARED (mutex));
futex_wake ((unsigned int *)&mutex->__data.__lock, INT_MAX,
PTHREAD_MUTEX_PSHARED (mutex));
return 0;
}

6
nptl/pthread_mutex_unlock.c
View file

@ -162,7 +162,7 @@ __pthread_mutex_unlock_full (pthread_mutex_t *mutex, int decr)
private = PTHREAD_ROBUST_MUTEX_PSHARED (mutex);
if (__glibc_unlikely ((atomic_exchange_rel (&mutex->__data.__lock, 0)
& FUTEX_WAITERS) != 0))
lll_futex_wake (&mutex->__data.__lock, 1, private);
futex_wake ((unsigned int *) &mutex->__data.__lock, 1, private);
/* We must clear op_pending after we release the mutex.
FIXME However, this violates the mutex destruction requirements
@ -332,8 +332,8 @@ __pthread_mutex_unlock_full (pthread_mutex_t *mutex, int decr)
&oldval, newval));
if ((oldval & ~PTHREAD_MUTEX_PRIO_CEILING_MASK) > 1)
lll_futex_wake (&mutex->__data.__lock, 1,
PTHREAD_MUTEX_PSHARED (mutex));
futex_wake ((unsigned int *)&mutex->__data.__lock, 1,
PTHREAD_MUTEX_PSHARED (mutex));
int oldprio = newval >> PTHREAD_MUTEX_PRIO_CEILING_SHIFT;

9
nptl/sem_post.c
View file

@ -84,19 +84,14 @@ int
attribute_compat_text_section
__old_sem_post (sem_t *sem)
{
int *futex = (int *) sem;
unsigned int *futex = (unsigned int *) sem;
/* We must need to synchronize with consumers of this token, so the atomic
increment must have release MO semantics. */
atomic_write_barrier ();
(void) atomic_increment_val (futex);
/* We always have to assume it is a shared semaphore. */
int err = lll_futex_wake (futex, 1, LLL_SHARED);
if (__builtin_expect (err, 0) < 0)
{
__set_errno (-err);
return -1;
}
futex_wake (futex, 1, LLL_SHARED);
return 0;
}
compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0);