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author | mav <mav@FreeBSD.org> | 2015-11-13 09:14:30 +0000 |
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committer | mav <mav@FreeBSD.org> | 2015-11-13 09:14:30 +0000 |
commit | 6297d8356ee9d81a9a75fd25b13cf068c1efd3e3 (patch) | |
tree | cd41fb62feb9fc681c4ce5b6f62929fa3e9ec885 /sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c | |
parent | f8b95c8829be3a07ff8e383eb3176ae74ebd6e30 (diff) | |
download | FreeBSD-src-6297d8356ee9d81a9a75fd25b13cf068c1efd3e3.zip FreeBSD-src-6297d8356ee9d81a9a75fd25b13cf068c1efd3e3.tar.gz |
MFC r289190: 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
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c')
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c | 107 |
1 files changed, 63 insertions, 44 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c index 491c365..ce8eed3 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c @@ -2336,13 +2336,15 @@ zvol_dump_init(zvol_state_t *zv, boolean_t resize) 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); @@ -2366,24 +2368,42 @@ zvol_dump_init(zvol_state_t *zv, boolean_t resize) 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 @@ -2394,37 +2414,30 @@ zvol_dump_init(zvol_state_t *zv, boolean_t resize) 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); } @@ -2437,7 +2450,15 @@ zvol_dump_init(zvol_state_t *zv, boolean_t resize) * 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); @@ -2456,13 +2477,11 @@ zvol_dump_init(zvol_state_t *zv, boolean_t resize) 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); } |