Date: Sun, 19 Sep 2010 20:08:46 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r212881 - stable/7/sys/geom/raid3 Message-ID: <201009192008.o8JK8kcg014652@svn.freebsd.org>
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Author: mav Date: Sun Sep 19 20:08:45 2010 New Revision: 212881 URL: http://svn.freebsd.org/changeset/base/212881 Log: MFC r201567: Move wakeup() out of mutex to reduce contention. Modified: stable/7/sys/geom/raid3/g_raid3.c Directory Properties: stable/7/sys/ (props changed) stable/7/sys/cddl/contrib/opensolaris/ (props changed) stable/7/sys/contrib/dev/acpica/ (props changed) stable/7/sys/contrib/pf/ (props changed) Modified: stable/7/sys/geom/raid3/g_raid3.c ============================================================================== --- stable/7/sys/geom/raid3/g_raid3.c Sun Sep 19 20:07:40 2010 (r212880) +++ stable/7/sys/geom/raid3/g_raid3.c Sun Sep 19 20:08:45 2010 (r212881) @@ -1271,9 +1271,9 @@ g_raid3_done(struct bio *bp) G_RAID3_LOGREQ(3, bp, "Regular request done (error=%d).", bp->bio_error); mtx_lock(&sc->sc_queue_mtx); bioq_insert_head(&sc->sc_queue, bp); + mtx_unlock(&sc->sc_queue_mtx); wakeup(sc); wakeup(&sc->sc_queue); - mtx_unlock(&sc->sc_queue_mtx); } static void @@ -1379,9 +1379,9 @@ g_raid3_sync_done(struct bio *bp) bp->bio_cflags |= G_RAID3_BIO_CFLAG_SYNC; mtx_lock(&sc->sc_queue_mtx); bioq_insert_head(&sc->sc_queue, bp); + mtx_unlock(&sc->sc_queue_mtx); wakeup(sc); wakeup(&sc->sc_queue); - mtx_unlock(&sc->sc_queue_mtx); } static void @@ -1459,9 +1459,9 @@ g_raid3_start(struct bio *bp) } mtx_lock(&sc->sc_queue_mtx); bioq_insert_tail(&sc->sc_queue, bp); + mtx_unlock(&sc->sc_queue_mtx); G_RAID3_DEBUG(4, "%s: Waking up %p.", __func__, sc); wakeup(sc); - mtx_unlock(&sc->sc_queue_mtx); } /*
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