adaptive serialize enter

Simon 'corecode' Schubert corecode at fs.ei.tum.de
Sun May 4 04:13:33 PDT 2008


Sepherosa Ziehau wrote:
http://leaf.dragonflybsd.org/~sephe/lwkt_serialize.c.diff

+    crit_enter();
+    tsleep_interlock(s);
+    if (atomic_intr_cond_test(&s->interlock) != 0) {
+#ifdef PROFILE_SERIALIZER
+	s->sleep_cnt++;
+#endif
+	logslz(sleep_beg, s);
+	tsleep(s, 0, "slize", 0);
+	logslz(sleep_end, s);
+    }
+    crit_exit();
Are you allowed to call tsleep_interlock() without doing a tsleep afterwards?

cheers
  simon
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