diff options
Diffstat (limited to 'nptl/pthread_mutexattr_setprioceiling.c')
| -rw-r--r-- | nptl/pthread_mutexattr_setprioceiling.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/nptl/pthread_mutexattr_setprioceiling.c b/nptl/pthread_mutexattr_setprioceiling.c index d10e51cbfa..d155bf0fa8 100644 --- a/nptl/pthread_mutexattr_setprioceiling.c +++ b/nptl/pthread_mutexattr_setprioceiling.c @@ -19,6 +19,7 @@ #include <errno.h> #include <pthreadP.h> +#include <atomic.h> int @@ -26,15 +27,19 @@ pthread_mutexattr_setprioceiling (attr, prioceiling) pthread_mutexattr_t *attr; int prioceiling; { - if (__sched_fifo_min_prio == -1) + /* See __init_sched_fifo_prio. */ + if (atomic_load_relaxed (&__sched_fifo_min_prio) == -1 + || atomic_load_relaxed (&__sched_fifo_max_prio) == -1) __init_sched_fifo_prio (); - if (__builtin_expect (prioceiling < __sched_fifo_min_prio, 0) - || __builtin_expect (prioceiling > __sched_fifo_max_prio, 0) - || __builtin_expect ((prioceiling + if (__glibc_unlikely (prioceiling + < atomic_load_relaxed (&__sched_fifo_min_prio)) + || __glibc_unlikely (prioceiling + > atomic_load_relaxed (&__sched_fifo_max_prio)) + || __glibc_unlikely ((prioceiling & (PTHREAD_MUTEXATTR_PRIO_CEILING_MASK >> PTHREAD_MUTEXATTR_PRIO_CEILING_SHIFT)) - != prioceiling, 0)) + != prioceiling)) return EINVAL; struct pthread_mutexattr *iattr = (struct pthread_mutexattr *) attr; |