svn commit: r201566 - head/sys/geom/mirror
Alexander Motin
mav at FreeBSD.org
Tue Jan 5 10:30:57 UTC 2010
Author: mav
Date: Tue Jan 5 10:30:56 2010
New Revision: 201566
URL: http://svn.freebsd.org/changeset/base/201566
Log:
Move wakeup() out of mutex to reduce contention.
Modified:
head/sys/geom/mirror/g_mirror.c
Modified: head/sys/geom/mirror/g_mirror.c
==============================================================================
--- head/sys/geom/mirror/g_mirror.c Tue Jan 5 07:50:31 2010 (r201565)
+++ head/sys/geom/mirror/g_mirror.c Tue Jan 5 10:30:56 2010 (r201566)
@@ -868,8 +868,8 @@ g_mirror_done(struct bio *bp)
bp->bio_cflags = G_MIRROR_BIO_FLAG_REGULAR;
mtx_lock(&sc->sc_queue_mtx);
bioq_disksort(&sc->sc_queue, bp);
- wakeup(sc);
mtx_unlock(&sc->sc_queue_mtx);
+ wakeup(sc);
}
static void
@@ -954,9 +954,9 @@ g_mirror_regular_request(struct bio *bp)
pbp->bio_error = 0;
mtx_lock(&sc->sc_queue_mtx);
bioq_disksort(&sc->sc_queue, pbp);
+ mtx_unlock(&sc->sc_queue_mtx);
G_MIRROR_DEBUG(4, "%s: Waking up %p.", __func__, sc);
wakeup(sc);
- mtx_unlock(&sc->sc_queue_mtx);
}
break;
case BIO_DELETE:
@@ -994,8 +994,8 @@ g_mirror_sync_done(struct bio *bp)
bp->bio_cflags = G_MIRROR_BIO_FLAG_SYNC;
mtx_lock(&sc->sc_queue_mtx);
bioq_disksort(&sc->sc_queue, bp);
- wakeup(sc);
mtx_unlock(&sc->sc_queue_mtx);
+ wakeup(sc);
}
static void
@@ -1107,9 +1107,9 @@ g_mirror_start(struct bio *bp)
}
mtx_lock(&sc->sc_queue_mtx);
bioq_disksort(&sc->sc_queue, bp);
+ mtx_unlock(&sc->sc_queue_mtx);
G_MIRROR_DEBUG(4, "%s: Waking up %p.", __func__, sc);
wakeup(sc);
- mtx_unlock(&sc->sc_queue_mtx);
}
/*
More information about the svn-src-head
mailing list