diff options
Diffstat (limited to 'lib/libc_r/uthread/uthread_setschedparam.c')
| -rw-r--r-- | lib/libc_r/uthread/uthread_setschedparam.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/lib/libc_r/uthread/uthread_setschedparam.c b/lib/libc_r/uthread/uthread_setschedparam.c index f1ce72ec3538..93635da449cd 100644 --- a/lib/libc_r/uthread/uthread_setschedparam.c +++ b/lib/libc_r/uthread/uthread_setschedparam.c @@ -29,7 +29,6 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: uthread_setschedparam.c,v 1.2 1999/06/20 08:28:44 jb Exp $ */ #include <errno.h> #include <sys/param.h> @@ -51,10 +50,10 @@ pthread_setschedparam(pthread_t pthread, int policy, struct sched_param *param) /* Find the thread in the list of active threads: */ else if ((ret = _find_thread(pthread)) == 0) { /* - * Defer signals to protect the scheduling queues from - * access by the signal handler: + * Guard against being preempted by a scheduling + * signal: */ - _thread_kern_sig_defer(); + _thread_kern_sched_defer(); if (param->sched_priority != pthread->base_priority) { /* @@ -62,7 +61,8 @@ pthread_setschedparam(pthread_t pthread, int policy, struct sched_param *param) * queue before any adjustments are made to its * active priority: */ - if ((pthread->flags & PTHREAD_FLAGS_IN_PRIOQ) != 0) { + if ((pthread != _thread_run) && + (pthread->state == PS_RUNNING)) { in_readyq = 1; old_prio = pthread->active_priority; PTHREAD_PRIOQ_REMOVE(pthread); @@ -103,10 +103,10 @@ pthread_setschedparam(pthread_t pthread, int policy, struct sched_param *param) pthread->attr.sched_policy = policy; /* - * Undefer and handle pending signals, yielding if - * necessary: + * Renable preemption and yield if a scheduling signal + * arrived while in the critical region: */ - _thread_kern_sig_undefer(); + _thread_kern_sched_undefer(); } return(ret); } |