Author: davidxu
Date: Thu May 10 09:30:37 2012
New Revision: 235218
URL: http://svn.freebsd.org/changeset/base/235218
Log:
Create a common function lookup() to search a chan, this eliminates
redundant SC_LOOKUP() calling.
Modified:
head/lib/libthr/thread/thr_sleepq.c
Modified: head/lib/libthr/thread/thr_sleepq.c
==============================================================================
--- head/lib/libthr/thread/thr_sleepq.c Thu May 10 09:10:31 2012
(r235217)
+++ head/lib/libthr/thread/thr_sleepq.c Thu May 10 09:30:37 2012
(r235218)
@@ -94,19 +94,23 @@ _sleepq_unlock(void *wchan)
THR_LOCK_RELEASE(curthread, &sc->sc_lock);
}
-struct sleepqueue *
-_sleepq_lookup(void *wchan)
+static inline struct sleepqueue *
+lookup(struct sleepqueue_chain *sc, void *wchan)
{
- struct sleepqueue_chain *sc;
struct sleepqueue *sq;
- sc = SC_LOOKUP(wchan);
LIST_FOREACH(sq, &sc->sc_queues, sq_hash)
if (sq->sq_wchan == wchan)
return (sq);
return (NULL);
}
+struct sleepqueue *
+_sleepq_lookup(void *wchan)
+{
+ return (lookup(SC_LOOKUP(wchan), wchan));
+}
+
void
_sleepq_add(void *wchan, struct pthread *td)
{
@@ -114,7 +118,7 @@ _sleepq_add(void *wchan, struct pthread
struct sleepqueue *sq;
sc = SC_LOOKUP(wchan);
- sq = _sleepq_lookup(wchan);
+ sq = lookup(sc, wchan);
if (sq != NULL) {
SLIST_INSERT_HEAD(&sq->sq_freeq, td->sleepqueue, sq_flink);
} else {
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