Date: Sun, 19 Sep 2010 19:43:05 +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: r212874 - stable/7/sys/geom/mirror Message-ID: <201009191943.o8JJh52m013429@svn.freebsd.org>
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Author: mav Date: Sun Sep 19 19:43:05 2010 New Revision: 212874 URL: http://svn.freebsd.org/changeset/base/212874 Log: MFC r201566: Move wakeup() out of mutex to reduce contention. Modified: stable/7/sys/geom/mirror/g_mirror.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/mirror/g_mirror.c ============================================================================== --- stable/7/sys/geom/mirror/g_mirror.c Sun Sep 19 19:42:04 2010 (r212873) +++ stable/7/sys/geom/mirror/g_mirror.c Sun Sep 19 19:43:05 2010 (r212874) @@ -853,8 +853,8 @@ 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 @@ -939,9 +939,9 @@ 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: @@ -979,8 +979,8 @@ 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 @@ -1092,9 +1092,9 @@ 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); } /*
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