svn commit: r196904 - head/sys/geom

[Alexander Motin]

Author: mav
Date: Sun Sep  6 19:33:13 2009
New Revision: 196904
URL: http://svn.freebsd.org/changeset/base/196904

Log:
  MFp4:
  Remove msleep() timeout from g_io_schedule_up/down(). It works fine
  without it, saving few percents of CPU on high request rates without
  need to rearm callout twice per request.

Modified:
  head/sys/geom/geom_io.c

Modified: head/sys/geom/geom_io.c
==============================================================================
--- head/sys/geom/geom_io.c	Sun Sep  6 19:06:50 2009	(r196903)
+++ head/sys/geom/geom_io.c	Sun Sep  6 19:33:13 2009	(r196904)
@@ -567,7 +567,7 @@ g_io_schedule_down(struct thread *tp __u
 		if (bp == NULL) {
 			CTR0(KTR_GEOM, "g_down going to sleep");
 			msleep(&g_wait_down, &g_bio_run_down.bio_queue_lock,
-			    PRIBIO | PDROP, "-", hz/10);
+			    PRIBIO | PDROP, "-", 0);
 			continue;
 		}
 		CTR0(KTR_GEOM, "g_down has work to do");
@@ -672,7 +672,7 @@ g_io_schedule_up(struct thread *tp __unu
 		}
 		CTR0(KTR_GEOM, "g_up going to sleep");
 		msleep(&g_wait_up, &g_bio_run_up.bio_queue_lock,
-		    PRIBIO | PDROP, "-", hz/10);
+		    PRIBIO | PDROP, "-", 0);
 	}
 }