Date: Thu, 8 May 2014 12:07:41 +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-10@freebsd.org Subject: svn commit: r265669 - stable/10/sys/geom/raid Message-ID: <201405081207.s48C7f0x081430@svn.freebsd.org>
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Author: mav Date: Thu May 8 12:07:40 2014 New Revision: 265669 URL: http://svnweb.freebsd.org/changeset/base/265669 Log: MFC r265054: Reduce number of opens by REOM RAID during provider taste. Instead opening/closing provider by each of metadata classes, do it only once in core code. Since for SCSI disks open/close means sending some SCSI commands to the device, this change reduces taste time. Sponsored by: iXsystems, Inc. Modified: stable/10/sys/geom/raid/g_raid.c stable/10/sys/geom/raid/md_ddf.c stable/10/sys/geom/raid/md_intel.c stable/10/sys/geom/raid/md_jmicron.c stable/10/sys/geom/raid/md_nvidia.c stable/10/sys/geom/raid/md_promise.c stable/10/sys/geom/raid/md_sii.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/geom/raid/g_raid.c ============================================================================== --- stable/10/sys/geom/raid/g_raid.c Thu May 8 12:04:40 2014 (r265668) +++ stable/10/sys/geom/raid/g_raid.c Thu May 8 12:07:40 2014 (r265669) @@ -2251,6 +2251,8 @@ g_raid_taste(struct g_class *mp, struct return (NULL); G_RAID_DEBUG(2, "Tasting provider %s.", pp->name); + geom = NULL; + status = G_RAID_MD_TASTE_FAIL; gp = g_new_geomf(mp, "raid:taste"); /* * This orphan function should be never called. @@ -2259,8 +2261,9 @@ g_raid_taste(struct g_class *mp, struct cp = g_new_consumer(gp); cp->flags |= G_CF_DIRECT_RECEIVE; g_attach(cp, pp); + if (g_access(cp, 1, 0, 0) != 0) + goto ofail; - geom = NULL; LIST_FOREACH(class, &g_raid_md_classes, mdc_list) { if (!class->mdc_enable) continue; @@ -2276,6 +2279,9 @@ g_raid_taste(struct g_class *mp, struct break; } + if (status == G_RAID_MD_TASTE_FAIL) + (void)g_access(cp, -1, 0, 0); +ofail: g_detach(cp); g_destroy_consumer(cp); g_destroy_geom(gp); Modified: stable/10/sys/geom/raid/md_ddf.c ============================================================================== --- stable/10/sys/geom/raid/md_ddf.c Thu May 8 12:04:40 2014 (r265668) +++ stable/10/sys/geom/raid/md_ddf.c Thu May 8 12:07:40 2014 (r265669) @@ -2120,13 +2120,10 @@ g_raid_md_taste_ddf(struct g_raid_md_obj pp = cp->provider; /* Read metadata from device. */ - if (g_access(cp, 1, 0, 0) != 0) - return (G_RAID_MD_TASTE_FAIL); g_topology_unlock(); bzero(&meta, sizeof(meta)); error = ddf_meta_read(cp, &meta); g_topology_lock(); - g_access(cp, -1, 0, 0); if (error != 0) return (G_RAID_MD_TASTE_FAIL); be = meta.bigendian; @@ -2164,6 +2161,9 @@ g_raid_md_taste_ddf(struct g_raid_md_obj geom = sc->sc_geom; } + /* There is no return after this point, so we close passed consumer. */ + g_access(cp, -1, 0, 0); + rcp = g_new_consumer(geom); rcp->flags |= G_CF_DIRECT_RECEIVE; g_attach(rcp, pp); Modified: stable/10/sys/geom/raid/md_intel.c ============================================================================== --- stable/10/sys/geom/raid/md_intel.c Thu May 8 12:04:40 2014 (r265668) +++ stable/10/sys/geom/raid/md_intel.c Thu May 8 12:07:40 2014 (r265669) @@ -1382,8 +1382,6 @@ g_raid_md_taste_intel(struct g_raid_md_o meta = NULL; vendor = 0xffff; disk_pos = 0; - if (g_access(cp, 1, 0, 0) != 0) - return (G_RAID_MD_TASTE_FAIL); g_topology_unlock(); error = g_raid_md_get_label(cp, serial, sizeof(serial)); if (error != 0) { @@ -1396,7 +1394,6 @@ g_raid_md_taste_intel(struct g_raid_md_o g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); meta = intel_meta_read(cp); g_topology_lock(); - g_access(cp, -1, 0, 0); if (meta == NULL) { if (g_raid_aggressive_spare) { if (vendor != 0x8086) { @@ -1476,6 +1473,9 @@ search: G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); } + /* There is no return after this point, so we close passed consumer. */ + g_access(cp, -1, 0, 0); + rcp = g_new_consumer(geom); rcp->flags |= G_CF_DIRECT_RECEIVE; g_attach(rcp, pp); @@ -1512,7 +1512,6 @@ search: return (result); fail2: g_topology_lock(); - g_access(cp, -1, 0, 0); fail1: free(meta, M_MD_INTEL); return (G_RAID_MD_TASTE_FAIL); Modified: stable/10/sys/geom/raid/md_jmicron.c ============================================================================== --- stable/10/sys/geom/raid/md_jmicron.c Thu May 8 12:04:40 2014 (r265668) +++ stable/10/sys/geom/raid/md_jmicron.c Thu May 8 12:07:40 2014 (r265669) @@ -837,15 +837,12 @@ g_raid_md_taste_jmicron(struct g_raid_md /* Read metadata from device. */ meta = NULL; vendor = 0xffff; - if (g_access(cp, 1, 0, 0) != 0) - return (G_RAID_MD_TASTE_FAIL); g_topology_unlock(); len = 2; if (pp->geom->rank == 1) g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); meta = jmicron_meta_read(cp); g_topology_lock(); - g_access(cp, -1, 0, 0); if (meta == NULL) { if (g_raid_aggressive_spare) { if (vendor == 0x197b) { @@ -922,6 +919,9 @@ search: G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); } + /* There is no return after this point, so we close passed consumer. */ + g_access(cp, -1, 0, 0); + rcp = g_new_consumer(geom); rcp->flags |= G_CF_DIRECT_RECEIVE; g_attach(rcp, pp); Modified: stable/10/sys/geom/raid/md_nvidia.c ============================================================================== --- stable/10/sys/geom/raid/md_nvidia.c Thu May 8 12:04:40 2014 (r265668) +++ stable/10/sys/geom/raid/md_nvidia.c Thu May 8 12:07:40 2014 (r265669) @@ -841,15 +841,12 @@ g_raid_md_taste_nvidia(struct g_raid_md_ /* Read metadata from device. */ meta = NULL; vendor = 0xffff; - if (g_access(cp, 1, 0, 0) != 0) - return (G_RAID_MD_TASTE_FAIL); g_topology_unlock(); len = 2; if (pp->geom->rank == 1) g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); meta = nvidia_meta_read(cp); g_topology_lock(); - g_access(cp, -1, 0, 0); if (meta == NULL) { if (g_raid_aggressive_spare) { if (vendor == 0x10de) { @@ -918,6 +915,9 @@ search: G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); } + /* There is no return after this point, so we close passed consumer. */ + g_access(cp, -1, 0, 0); + rcp = g_new_consumer(geom); rcp->flags |= G_CF_DIRECT_RECEIVE; g_attach(rcp, pp); Modified: stable/10/sys/geom/raid/md_promise.c ============================================================================== --- stable/10/sys/geom/raid/md_promise.c Thu May 8 12:04:40 2014 (r265668) +++ stable/10/sys/geom/raid/md_promise.c Thu May 8 12:07:40 2014 (r265669) @@ -1106,15 +1106,12 @@ g_raid_md_taste_promise(struct g_raid_md /* Read metadata from device. */ meta = NULL; vendor = 0xffff; - if (g_access(cp, 1, 0, 0) != 0) - return (G_RAID_MD_TASTE_FAIL); g_topology_unlock(); len = 2; if (pp->geom->rank == 1) g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); subdisks = promise_meta_read(cp, metaarr); g_topology_lock(); - g_access(cp, -1, 0, 0); if (subdisks == 0) { if (g_raid_aggressive_spare) { if (vendor == 0x105a || vendor == 0x1002) { @@ -1175,6 +1172,9 @@ search: geom = sc->sc_geom; } + /* There is no return after this point, so we close passed consumer. */ + g_access(cp, -1, 0, 0); + rcp = g_new_consumer(geom); rcp->flags |= G_CF_DIRECT_RECEIVE; g_attach(rcp, pp); Modified: stable/10/sys/geom/raid/md_sii.c ============================================================================== --- stable/10/sys/geom/raid/md_sii.c Thu May 8 12:04:40 2014 (r265668) +++ stable/10/sys/geom/raid/md_sii.c Thu May 8 12:07:40 2014 (r265669) @@ -923,15 +923,12 @@ g_raid_md_taste_sii(struct g_raid_md_obj /* Read metadata from device. */ meta = NULL; vendor = 0xffff; - if (g_access(cp, 1, 0, 0) != 0) - return (G_RAID_MD_TASTE_FAIL); g_topology_unlock(); len = 2; if (pp->geom->rank == 1) g_io_getattr("GEOM::hba_vendor", cp, &len, &vendor); meta = sii_meta_read(cp); g_topology_lock(); - g_access(cp, -1, 0, 0); if (meta == NULL) { if (g_raid_aggressive_spare) { if (vendor == 0x1095) { @@ -1011,6 +1008,9 @@ search: G_RAID_DEBUG1(1, sc, "root_mount_hold %p", mdi->mdio_rootmount); } + /* There is no return after this point, so we close passed consumer. */ + g_access(cp, -1, 0, 0); + rcp = g_new_consumer(geom); rcp->flags |= G_CF_DIRECT_RECEIVE; g_attach(rcp, pp);
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