diff options
Diffstat (limited to 'lib/libthr/thread/thr_sleepq.c')
| -rw-r--r-- | lib/libthr/thread/thr_sleepq.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/libthr/thread/thr_sleepq.c b/lib/libthr/thread/thr_sleepq.c index 8549a87..40553cb 100644 --- a/lib/libthr/thread/thr_sleepq.c +++ b/lib/libthr/thread/thr_sleepq.c @@ -39,6 +39,7 @@ struct sleepqueue_chain { struct umutex sc_lock; + int sc_enqcnt; LIST_HEAD(, sleepqueue) sc_queues; int sc_type; }; @@ -124,7 +125,10 @@ _sleepq_add(void *wchan, struct pthread *td) } td->sleepqueue = NULL; td->wchan = wchan; - TAILQ_INSERT_TAIL(&sq->sq_blocked, td, wle); + if (((++sc->sc_enqcnt << _thr_queuefifo) & 0xff) != 0) + TAILQ_INSERT_HEAD(&sq->sq_blocked, td, wle); + else + TAILQ_INSERT_TAIL(&sq->sq_blocked, td, wle); } int |
