Date: Mon, 12 Oct 2015 15:39:03 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r289190 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <201510121539.t9CFd35j041572@repo.freebsd.org>
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Author: mav Date: Mon Oct 12 15:39:03 2015 New Revision: 289190 URL: https://svnweb.freebsd.org/changeset/base/289190 Log: MFV r289185: 6250 zvol_dump_init() can hold txg open Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Albert Lee <trisk@omniti.com> Reviewed by: Xin Li <delphij@freebsd.org> Approved by: Garrett D'Amore <garrett@damore.org> Author: George Wilson <george.wilson@delphix.com> illumos/illumos-gate@b10bba72460aeaa53119c76ff5e647fd5585bece Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c Directory Properties: head/sys/cddl/contrib/opensolaris/ (props changed) Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c Mon Oct 12 15:35:34 2015 (r289189) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c Mon Oct 12 15:39:03 2015 (r289190) @@ -2335,13 +2335,15 @@ zvol_dump_init(zvol_state_t *zv, boolean vdev_t *vd = spa->spa_root_vdev; nvlist_t *nv = NULL; uint64_t version = spa_version(spa); - enum zio_checksum checksum; + uint64_t checksum, compress, refresrv, vbs, dedup; ASSERT(MUTEX_HELD(&zfsdev_state_lock)); ASSERT(vd->vdev_ops == &vdev_root_ops); error = dmu_free_long_range(zv->zv_objset, ZVOL_OBJ, 0, DMU_OBJECT_END); + if (error != 0) + return (error); /* wait for dmu_free_long_range to actually free the blocks */ txg_wait_synced(dmu_objset_pool(zv->zv_objset), 0); @@ -2365,24 +2367,42 @@ zvol_dump_init(zvol_state_t *zv, boolean 2, ZFS_SPACE_CHECK_RESERVED); } + if (!resize) { + error = dsl_prop_get_integer(zv->zv_name, + zfs_prop_to_name(ZFS_PROP_COMPRESSION), &compress, NULL); + if (error == 0) { + error = dsl_prop_get_integer(zv->zv_name, + zfs_prop_to_name(ZFS_PROP_CHECKSUM), &checksum, + NULL); + } + if (error == 0) { + error = dsl_prop_get_integer(zv->zv_name, + zfs_prop_to_name(ZFS_PROP_REFRESERVATION), + &refresrv, NULL); + } + if (error == 0) { + error = dsl_prop_get_integer(zv->zv_name, + zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), &vbs, + NULL); + } + if (version >= SPA_VERSION_DEDUP && error == 0) { + error = dsl_prop_get_integer(zv->zv_name, + zfs_prop_to_name(ZFS_PROP_DEDUP), &dedup, NULL); + } + } + if (error != 0) + return (error); + tx = dmu_tx_create(os); dmu_tx_hold_zap(tx, ZVOL_ZAP_OBJ, TRUE, NULL); dmu_tx_hold_bonus(tx, ZVOL_OBJ); error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { + if (error != 0) { dmu_tx_abort(tx); return (error); } /* - * If MULTI_VDEV_CRASH_DUMP is active, use the NOPARITY checksum - * function. Otherwise, use the old default -- OFF. - */ - checksum = spa_feature_is_active(spa, - SPA_FEATURE_MULTI_VDEV_CRASH_DUMP) ? ZIO_CHECKSUM_NOPARITY : - ZIO_CHECKSUM_OFF; - - /* * If we are resizing the dump device then we only need to * update the refreservation to match the newly updated * zvolsize. Otherwise, we save off the original state of the @@ -2393,37 +2413,30 @@ zvol_dump_init(zvol_state_t *zv, boolean zfs_prop_to_name(ZFS_PROP_REFRESERVATION), 8, 1, &zv->zv_volsize, tx); } else { - uint64_t checksum, compress, refresrv, vbs, dedup; - - error = dsl_prop_get_integer(zv->zv_name, - zfs_prop_to_name(ZFS_PROP_COMPRESSION), &compress, NULL); - error = error ? error : dsl_prop_get_integer(zv->zv_name, - zfs_prop_to_name(ZFS_PROP_CHECKSUM), &checksum, NULL); - error = error ? error : dsl_prop_get_integer(zv->zv_name, - zfs_prop_to_name(ZFS_PROP_REFRESERVATION), &refresrv, NULL); - error = error ? error : dsl_prop_get_integer(zv->zv_name, - zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), &vbs, NULL); - if (version >= SPA_VERSION_DEDUP) { - error = error ? error : - dsl_prop_get_integer(zv->zv_name, - zfs_prop_to_name(ZFS_PROP_DEDUP), &dedup, NULL); - } - - error = error ? error : zap_update(os, ZVOL_ZAP_OBJ, + error = zap_update(os, ZVOL_ZAP_OBJ, zfs_prop_to_name(ZFS_PROP_COMPRESSION), 8, 1, &compress, tx); - error = error ? error : zap_update(os, ZVOL_ZAP_OBJ, - zfs_prop_to_name(ZFS_PROP_CHECKSUM), 8, 1, &checksum, tx); - error = error ? error : zap_update(os, ZVOL_ZAP_OBJ, - zfs_prop_to_name(ZFS_PROP_REFRESERVATION), 8, 1, - &refresrv, tx); - error = error ? error : zap_update(os, ZVOL_ZAP_OBJ, - zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 8, 1, - &vbs, tx); - error = error ? error : dmu_object_set_blocksize( - os, ZVOL_OBJ, SPA_OLD_MAXBLOCKSIZE, 0, tx); - if (version >= SPA_VERSION_DEDUP) { - error = error ? error : zap_update(os, ZVOL_ZAP_OBJ, + if (error == 0) { + error = zap_update(os, ZVOL_ZAP_OBJ, + zfs_prop_to_name(ZFS_PROP_CHECKSUM), 8, 1, + &checksum, tx); + } + if (error == 0) { + error = zap_update(os, ZVOL_ZAP_OBJ, + zfs_prop_to_name(ZFS_PROP_REFRESERVATION), 8, 1, + &refresrv, tx); + } + if (error == 0) { + error = zap_update(os, ZVOL_ZAP_OBJ, + zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 8, 1, + &vbs, tx); + } + if (error == 0) { + error = dmu_object_set_blocksize( + os, ZVOL_OBJ, SPA_OLD_MAXBLOCKSIZE, 0, tx); + } + if (version >= SPA_VERSION_DEDUP && error == 0) { + error = zap_update(os, ZVOL_ZAP_OBJ, zfs_prop_to_name(ZFS_PROP_DEDUP), 8, 1, &dedup, tx); } @@ -2436,7 +2449,15 @@ zvol_dump_init(zvol_state_t *zv, boolean * We only need update the zvol's property if we are initializing * the dump area for the first time. */ - if (!resize) { + if (error == 0 && !resize) { + /* + * If MULTI_VDEV_CRASH_DUMP is active, use the NOPARITY checksum + * function. Otherwise, use the old default -- OFF. + */ + checksum = spa_feature_is_active(spa, + SPA_FEATURE_MULTI_VDEV_CRASH_DUMP) ? ZIO_CHECKSUM_NOPARITY : + ZIO_CHECKSUM_OFF; + VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); VERIFY(nvlist_add_uint64(nv, zfs_prop_to_name(ZFS_PROP_REFRESERVATION), 0) == 0); @@ -2455,13 +2476,11 @@ zvol_dump_init(zvol_state_t *zv, boolean error = zfs_set_prop_nvlist(zv->zv_name, ZPROP_SRC_LOCAL, nv, NULL); nvlist_free(nv); - - if (error) - return (error); } /* Allocate the space for the dump */ - error = zvol_prealloc(zv); + if (error == 0) + error = zvol_prealloc(zv); return (error); }
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