fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/cred.h>

fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/zfs_context.h>

fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/dmu_objset.h>

fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/dsl_dir.h>

fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/dsl_dataset.h>

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#include <sys/dsl_prop.h>

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#include <sys/dsl_pool.h>

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#include <sys/dsl_synctask.h>

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#include <sys/dsl_deleg.h>

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#include <sys/dnode.h>

840345f69c01af33ad169d6b4a6ae7ea78b4218aGeorge Wilson#include <sys/dbuf.h>

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#include <sys/zvol.h>

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#include <sys/dmu_tx.h>

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#include <sys/zap.h>

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#include <sys/zil.h>

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#include <sys/dmu_impl.h>

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson#include <sys/zfs_ioctl.h>

13506d1eefbbc37e2f12a0528831d9f6d4c361d7maybee#include <sys/sa.h>

e05725b117836db173257fae43fb0746eb857fb5bonwick#include <sys/zfs_onexit.h>

13506d1eefbbc37e2f12a0528831d9f6d4c361d7maybee#include <sys/dsl_destroy.h>

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsonkrwlock_t os_lock;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilsondmu_objset_init(void)

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson{

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson rw_init(&os_lock, NULL, RW_DEFAULT, NULL);

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson}

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilsondmu_objset_fini(void)

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick{

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick rw_destroy(&os_lock);

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick}

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickspa_t *

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilsondmu_objset_spa(objset_t *os)

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson{

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (os->os_spa);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson}

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilsonzilog_t *

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilsondmu_objset_zil(objset_t *os)

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson{

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson return (os->os_zil);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson}

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilsondsl_pool_t *

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilsondmu_objset_pool(objset_t *os)

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson{

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dataset_t *ds;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if ((ds = os->os_dsl_dataset) != NULL && ds->ds_dir)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (ds->ds_dir->dd_pool);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson else

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (spa_get_dsl(os->os_spa));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsondsl_dataset_t *

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsondmu_objset_ds(objset_t *os)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson{

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (os->os_dsl_dataset);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsondmu_objset_type(objset_t *os)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson{

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson return (os->os_phys->os_type);

9dc3941c735ef88de46e850f745aa556d3a071a5Sašo Kiselkov}

9dc3941c735ef88de46e850f745aa556d3a071a5Sašo Kiselkov

9dc3941c735ef88de46e850f745aa556d3a071a5Sašo Kiselkovdmu_objset_name(objset_t *os, char *buf)

9dc3941c735ef88de46e850f745aa556d3a071a5Sašo Kiselkov{

fa9e4066f08beec538e775443c5be79dd423fcabahrens dsl_dataset_name(os->os_dsl_dataset, buf);

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrensdmu_objset_id(objset_t *os)

fa9e4066f08beec538e775443c5be79dd423fcabahrens{

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson dsl_dataset_t *ds = os->os_dsl_dataset;

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens return (ds ? ds->ds_object : 0);

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

fa9e4066f08beec538e775443c5be79dd423fcabahrens

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilsondmu_objset_syncprop(objset_t *os)

fa9e4066f08beec538e775443c5be79dd423fcabahrens{

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson return (os->os_sync);

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrensdmu_objset_logbias(objset_t *os)

fa9e4066f08beec538e775443c5be79dd423fcabahrens{

fa9e4066f08beec538e775443c5be79dd423fcabahrens return (os->os_logbias);

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwickstatic void

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwickchecksum_changed_cb(void *arg, uint64_t newval)

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick{

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick objset_t *os = arg;

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens /*

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson ASSERT(newval != ZIO_CHECKSUM_INHERIT);

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson os->os_checksum = zio_checksum_select(newval, ZIO_CHECKSUM_ON_VALUE);

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson}

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilsonstatic void

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilsoncompression_changed_cb(void *arg, uint64_t newval)

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson{

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson objset_t *os = arg;

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson /*

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson ASSERT(newval != ZIO_COMPRESS_INHERIT);

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson os->os_compress = zio_compress_select(newval, ZIO_COMPRESS_ON_VALUE);

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson}

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilsonstatic void

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilsoncopies_changed_cb(void *arg, uint64_t newval)

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson{

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson objset_t *os = arg;

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson /*

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ASSERT(newval > 0);

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ASSERT(newval <= spa_max_replication(os->os_spa));

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick os->os_copies = newval;

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick}

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickstatic void

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickdedup_changed_cb(void *arg, uint64_t newval)

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick{

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick objset_t *os = arg;

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick spa_t *spa = os->os_spa;

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick enum zio_checksum checksum;

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick /*

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ASSERT(newval != ZIO_CHECKSUM_INHERIT);

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick checksum = zio_checksum_dedup_select(spa, newval, ZIO_CHECKSUM_OFF);

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick os->os_dedup_checksum = checksum & ZIO_CHECKSUM_MASK;

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick os->os_dedup_verify = !!(checksum & ZIO_CHECKSUM_VERIFY);

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick}

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickstatic void

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickprimary_cache_changed_cb(void *arg, uint64_t newval)

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick{

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick objset_t *os = arg;

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick /*

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ASSERT(newval == ZFS_CACHE_ALL || newval == ZFS_CACHE_NONE ||

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick newval == ZFS_CACHE_METADATA);

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens os->os_primary_cache = newval;

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic void

fa9e4066f08beec538e775443c5be79dd423fcabahrenssecondary_cache_changed_cb(void *arg, uint64_t newval)

fa9e4066f08beec538e775443c5be79dd423fcabahrens{

fa9e4066f08beec538e775443c5be79dd423fcabahrens objset_t *os = arg;

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens /*

fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(newval == ZFS_CACHE_ALL || newval == ZFS_CACHE_NONE ||

fa9e4066f08beec538e775443c5be79dd423fcabahrens newval == ZFS_CACHE_METADATA);

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens os->os_secondary_cache = newval;

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic void

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsonsync_changed_cb(void *arg, uint64_t newval)

fa9e4066f08beec538e775443c5be79dd423fcabahrens{

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson objset_t *os = arg;

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens /*

fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(newval == ZFS_SYNC_STANDARD || newval == ZFS_SYNC_ALWAYS ||

fa9e4066f08beec538e775443c5be79dd423fcabahrens newval == ZFS_SYNC_DISABLED);

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens os->os_sync = newval;

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (os->os_zil)

fa9e4066f08beec538e775443c5be79dd423fcabahrens zil_set_sync(os->os_zil, newval);

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic void

fa9e4066f08beec538e775443c5be79dd423fcabahrenslogbias_changed_cb(void *arg, uint64_t newval)

fa9e4066f08beec538e775443c5be79dd423fcabahrens{

fa9e4066f08beec538e775443c5be79dd423fcabahrens objset_t *os = arg;

fa9e4066f08beec538e775443c5be79dd423fcabahrens

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick ASSERT(newval == ZFS_LOGBIAS_LATENCY ||

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick newval == ZFS_LOGBIAS_THROUGHPUT);

fa9e4066f08beec538e775443c5be79dd423fcabahrens os->os_logbias = newval;

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (os->os_zil)

fa9e4066f08beec538e775443c5be79dd423fcabahrens zil_set_logbias(os->os_zil, newval);

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrensdmu_objset_byteswap(void *buf, size_t size)

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick{

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick objset_phys_t *osp = buf;

a33cae9802e94744efee12a7a77c89360645eae8Tim Haley

a33cae9802e94744efee12a7a77c89360645eae8Tim Haley ASSERT(size == OBJSET_OLD_PHYS_SIZE || size == sizeof (objset_phys_t));

a33cae9802e94744efee12a7a77c89360645eae8Tim Haley dnode_byteswap(&osp->os_meta_dnode);

a33cae9802e94744efee12a7a77c89360645eae8Tim Haley byteswap_uint64_array(&osp->os_zil_header, sizeof (zil_header_t));

a33cae9802e94744efee12a7a77c89360645eae8Tim Haley osp->os_type = BSWAP_64(osp->os_type);

a33cae9802e94744efee12a7a77c89360645eae8Tim Haley osp->os_flags = BSWAP_64(osp->os_flags);

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick if (size == sizeof (objset_phys_t)) {

fa9e4066f08beec538e775443c5be79dd423fcabahrens dnode_byteswap(&osp->os_userused_dnode);

fa9e4066f08beec538e775443c5be79dd423fcabahrens dnode_byteswap(&osp->os_groupused_dnode);

fa9e4066f08beec538e775443c5be79dd423fcabahrens }

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

fa9e4066f08beec538e775443c5be79dd423fcabahrens

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwickdmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick objset_t **osp)

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick{

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick objset_t *os;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick int i, err;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick ASSERT(ds == NULL || MUTEX_HELD(&ds->ds_opening_lock));

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick os = kmem_zalloc(sizeof (objset_t), KM_SLEEP);

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick os->os_dsl_dataset = ds;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick os->os_spa = spa;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick os->os_rootbp = bp;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick if (!BP_IS_HOLE(os->os_rootbp)) {

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick uint32_t aflags = ARC_WAIT;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick zbookmark_t zb;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick SET_BOOKMARK(&zb, ds ? ds->ds_object : DMU_META_OBJSET,

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID);

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick if (DMU_OS_IS_L2CACHEABLE(os))

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick aflags |= ARC_L2CACHE;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick if (DMU_OS_IS_L2COMPRESSIBLE(os))

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick aflags |= ARC_L2COMPRESS;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick dprintf_bp(os->os_rootbp, "reading %s", "");

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick err = arc_read(NULL, spa, os->os_rootbp,

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick arc_getbuf_func, &os->os_phys_buf,

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL, &aflags, &zb);

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick if (err != 0) {

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick kmem_free(os, sizeof (objset_t));

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick /* convert checksum errors into IO errors */

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick if (err == ECKSUM)

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick err = SET_ERROR(EIO);

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick return (err);

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick }

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick /* Increase the blocksize if we are permitted. */

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick if (spa_version(spa) >= SPA_VERSION_USERSPACE &&

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick arc_buf_size(os->os_phys_buf) < sizeof (objset_phys_t)) {

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick arc_buf_t *buf = arc_buf_alloc(spa,

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick sizeof (objset_phys_t), &os->os_phys_buf,

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick ARC_BUFC_METADATA);

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick bzero(buf->b_data, sizeof (objset_phys_t));

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick bcopy(os->os_phys_buf->b_data, buf->b_data,

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick arc_buf_size(os->os_phys_buf));

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick (void) arc_buf_remove_ref(os->os_phys_buf,

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick &os->os_phys_buf);

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick os->os_phys_buf = buf;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick }

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick os->os_phys = os->os_phys_buf->b_data;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick os->os_flags = os->os_phys->os_flags;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick } else {

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick int size = spa_version(spa) >= SPA_VERSION_USERSPACE ?

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick sizeof (objset_phys_t) : OBJSET_OLD_PHYS_SIZE;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick os->os_phys_buf = arc_buf_alloc(spa, size,

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick &os->os_phys_buf, ARC_BUFC_METADATA);

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick os->os_phys = os->os_phys_buf->b_data;

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick bzero(os->os_phys, size);

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick }

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick

a15215608b8bd90f714f6db21ee623b584607cb6Jeff Bonwick /*

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (ds) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick err = dsl_prop_register(ds,

fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_prop_to_name(ZFS_PROP_PRIMARYCACHE),

fa9e4066f08beec538e775443c5be79dd423fcabahrens primary_cache_changed_cb, os);

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (err == 0) {

fa9e4066f08beec538e775443c5be79dd423fcabahrens err = dsl_prop_register(ds,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick zfs_prop_to_name(ZFS_PROP_SECONDARYCACHE),

fa9e4066f08beec538e775443c5be79dd423fcabahrens secondary_cache_changed_cb, os);

fa9e4066f08beec538e775443c5be79dd423fcabahrens }

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (!dsl_dataset_is_snapshot(ds)) {

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (err == 0) {

fa9e4066f08beec538e775443c5be79dd423fcabahrens err = dsl_prop_register(ds,

fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_prop_to_name(ZFS_PROP_CHECKSUM),

fa9e4066f08beec538e775443c5be79dd423fcabahrens checksum_changed_cb, os);

fa9e4066f08beec538e775443c5be79dd423fcabahrens }

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (err == 0) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick err = dsl_prop_register(ds,

fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_prop_to_name(ZFS_PROP_COMPRESSION),

fa9e4066f08beec538e775443c5be79dd423fcabahrens compression_changed_cb, os);

5f5f7a6f9c8e9c1587a54e690556d756ec67558cahrens }

5f5f7a6f9c8e9c1587a54e690556d756ec67558cahrens if (err == 0) {

5f5f7a6f9c8e9c1587a54e690556d756ec67558cahrens err = dsl_prop_register(ds,

5f5f7a6f9c8e9c1587a54e690556d756ec67558cahrens zfs_prop_to_name(ZFS_PROP_COPIES),

5f5f7a6f9c8e9c1587a54e690556d756ec67558cahrens copies_changed_cb, os);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick }

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (err == 0) {

fa9e4066f08beec538e775443c5be79dd423fcabahrens err = dsl_prop_register(ds,

fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_prop_to_name(ZFS_PROP_DEDUP),

fa9e4066f08beec538e775443c5be79dd423fcabahrens dedup_changed_cb, os);

fa9e4066f08beec538e775443c5be79dd423fcabahrens }

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (err == 0) {

fa9e4066f08beec538e775443c5be79dd423fcabahrens err = dsl_prop_register(ds,

fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_prop_to_name(ZFS_PROP_LOGBIAS),

fa9e4066f08beec538e775443c5be79dd423fcabahrens logbias_changed_cb, os);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (err == 0) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson err = dsl_prop_register(ds,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson zfs_prop_to_name(ZFS_PROP_SYNC),

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson sync_changed_cb, os);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (err != 0) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY(arc_buf_remove_ref(os->os_phys_buf,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson &os->os_phys_buf));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson kmem_free(os, sizeof (objset_t));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (err);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson } else if (ds == NULL) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson /* It's the meta-objset. */

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson os->os_checksum = ZIO_CHECKSUM_FLETCHER_4;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson os->os_compress = ZIO_COMPRESS_LZJB;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson os->os_copies = spa_max_replication(spa);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson os->os_dedup_checksum = ZIO_CHECKSUM_OFF;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson os->os_dedup_verify = 0;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson os->os_logbias = 0;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson os->os_sync = 0;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson os->os_primary_cache = ZFS_CACHE_ALL;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson os->os_secondary_cache = ZFS_CACHE_ALL;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (ds == NULL || !dsl_dataset_is_snapshot(ds))

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson os->os_zil_header = os->os_phys->os_zil_header;

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson os->os_zil = zil_alloc(os, &os->os_zil_header);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick for (i = 0; i < TXG_SIZE; i++) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick list_create(&os->os_dirty_dnodes[i], sizeof (dnode_t),

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson offsetof(dnode_t, dn_dirty_link[i]));

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson list_create(&os->os_free_dnodes[i], sizeof (dnode_t),

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick offsetof(dnode_t, dn_dirty_link[i]));

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick }

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick list_create(&os->os_dnodes, sizeof (dnode_t),

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick offsetof(dnode_t, dn_link));

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick list_create(&os->os_downgraded_dbufs, sizeof (dmu_buf_impl_t),

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick offsetof(dmu_buf_impl_t, db_link));

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick mutex_init(&os->os_lock, NULL, MUTEX_DEFAULT, NULL);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick mutex_init(&os->os_obj_lock, NULL, MUTEX_DEFAULT, NULL);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick mutex_init(&os->os_user_ptr_lock, NULL, MUTEX_DEFAULT, NULL);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick DMU_META_DNODE(os) = dnode_special_open(os,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick &os->os_phys->os_meta_dnode, DMU_META_DNODE_OBJECT,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick &os->os_meta_dnode);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (arc_buf_size(os->os_phys_buf) >= sizeof (objset_phys_t)) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick DMU_USERUSED_DNODE(os) = dnode_special_open(os,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick &os->os_phys->os_userused_dnode, DMU_USERUSED_OBJECT,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick &os->os_userused_dnode);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick DMU_GROUPUSED_DNODE(os) = dnode_special_open(os,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick &os->os_phys->os_groupused_dnode, DMU_GROUPUSED_OBJECT,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick &os->os_groupused_dnode);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick }

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick /*

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (ds) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick mutex_enter(&ds->ds_lock);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson ASSERT(ds->ds_objset == NULL);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson ds->ds_objset = os;

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson mutex_exit(&ds->ds_lock);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson *osp = os;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (0);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsondmu_objset_from_ds(dsl_dataset_t *ds, objset_t **osp)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson{

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson int err = 0;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson mutex_enter(&ds->ds_opening_lock);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson *osp = ds->ds_objset;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (*osp == NULL) {

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson err = dmu_objset_open_impl(dsl_dataset_get_spa(ds),

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson ds, dsl_dataset_get_blkptr(ds), osp);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson mutex_exit(&ds->ds_opening_lock);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson return (err);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsondmu_objset_hold(const char *name, void *tag, objset_t **osp)

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson{

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_pool_t *dp;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dataset_t *ds;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson int err;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick err = dsl_pool_hold(name, tag, &dp);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (err != 0)

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick return (err);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson err = dsl_dataset_hold(dp, name, tag, &ds);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (err != 0) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dsl_pool_rele(dp, tag);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick return (err);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick }

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick err = dmu_objset_from_ds(ds, osp);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (err != 0) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dsl_dataset_rele(ds, tag);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dsl_pool_rele(dp, tag);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick }

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson return (err);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilsondmu_objset_own(const char *name, dmu_objset_type_t type,

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson boolean_t readonly, void *tag, objset_t **osp)

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson{

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dsl_pool_t *dp;

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dsl_dataset_t *ds;

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson int err;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson err = dsl_pool_hold(name, FTAG, &dp);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (err != 0)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (err);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson err = dsl_dataset_own(dp, name, tag, &ds);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (err != 0) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_pool_rele(dp, FTAG);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson return (err);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson err = dmu_objset_from_ds(ds, osp);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dsl_pool_rele(dp, FTAG);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (err != 0) {

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dsl_dataset_disown(ds, tag);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson } else if (type != DMU_OST_ANY && type != (*osp)->os_phys->os_type) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dataset_disown(ds, tag);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (SET_ERROR(EINVAL));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson } else if (!readonly && dsl_dataset_is_snapshot(ds)) {

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dsl_dataset_disown(ds, tag);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (SET_ERROR(EROFS));

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson }

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson return (err);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsondmu_objset_rele(objset_t *os, void *tag)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson{

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_pool_t *dp = dmu_objset_pool(os);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dataset_rele(os->os_dsl_dataset, tag);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_pool_rele(dp, tag);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilsondmu_objset_refresh_ownership(objset_t *os, void *tag)

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson{

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_pool_t *dp;

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dsl_dataset_t *ds, *newds;

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson char name[MAXNAMELEN];

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson ds = os->os_dsl_dataset;

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson VERIFY3P(ds, !=, NULL);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson VERIFY3P(ds->ds_owner, ==, tag);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson VERIFY(dsl_dataset_long_held(ds));

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dsl_dataset_name(ds, name);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dp = dmu_objset_pool(os);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dsl_pool_config_enter(dp, FTAG);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dmu_objset_disown(os, tag);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson VERIFY0(dsl_dataset_own(dp, name, tag, &newds));

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson VERIFY3P(newds, ==, os->os_dsl_dataset);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dsl_pool_config_exit(dp, FTAG);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson}

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilsondmu_objset_disown(objset_t *os, void *tag)

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson{

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dsl_dataset_disown(os->os_dsl_dataset, tag);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsondmu_objset_evict_dbufs(objset_t *os)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson{

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dnode_t *dn;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson mutex_enter(&os->os_lock);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson /* process the mdn last, since the other dnodes have holds on it */

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson list_remove(&os->os_dnodes, DMU_META_DNODE(os));

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson list_insert_tail(&os->os_dnodes, DMU_META_DNODE(os));

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson /*

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson for (dn = list_head(&os->os_dnodes);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dn && !dnode_add_ref(dn, FTAG);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dn = list_next(&os->os_dnodes, dn))

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson continue;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson while (dn) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dnode_t *next_dn = dn;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson do {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson next_dn = list_next(&os->os_dnodes, next_dn);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson } while (next_dn && !dnode_add_ref(next_dn, FTAG));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson mutex_exit(&os->os_lock);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dnode_evict_dbufs(dn);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dnode_rele(dn, FTAG);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson mutex_enter(&os->os_lock);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dn = next_dn;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson mutex_exit(&os->os_lock);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsondmu_objset_evict(objset_t *os)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson{

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dataset_t *ds = os->os_dsl_dataset;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson for (int t = 0; t < TXG_SIZE; t++)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson ASSERT(!dmu_objset_is_dirty(os, t));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (ds) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (!dsl_dataset_is_snapshot(ds)) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dsl_prop_unregister(ds,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson zfs_prop_to_name(ZFS_PROP_CHECKSUM),

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson checksum_changed_cb, os));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dsl_prop_unregister(ds,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson zfs_prop_to_name(ZFS_PROP_COMPRESSION),

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson compression_changed_cb, os));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dsl_prop_unregister(ds,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson zfs_prop_to_name(ZFS_PROP_COPIES),

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson copies_changed_cb, os));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dsl_prop_unregister(ds,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson zfs_prop_to_name(ZFS_PROP_DEDUP),

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dedup_changed_cb, os));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dsl_prop_unregister(ds,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson zfs_prop_to_name(ZFS_PROP_LOGBIAS),

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson logbias_changed_cb, os));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dsl_prop_unregister(ds,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson zfs_prop_to_name(ZFS_PROP_SYNC),

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson sync_changed_cb, os));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dsl_prop_unregister(ds,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson zfs_prop_to_name(ZFS_PROP_PRIMARYCACHE),

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson primary_cache_changed_cb, os));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dsl_prop_unregister(ds,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson zfs_prop_to_name(ZFS_PROP_SECONDARYCACHE),

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson secondary_cache_changed_cb, os));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (os->os_sa)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson sa_tear_down(os);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dmu_objset_evict_dbufs(os);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dnode_special_close(&os->os_meta_dnode);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (DMU_USERUSED_DNODE(os)) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dnode_special_close(&os->os_userused_dnode);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dnode_special_close(&os->os_groupused_dnode);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

8d18220deb04ec7b12410cd90deb4d45e66d49bfMark J Musante zil_free(os->os_zil);

8d18220deb04ec7b12410cd90deb4d45e66d49bfMark J Musante

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson ASSERT3P(list_head(&os->os_dnodes), ==, NULL);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY(arc_buf_remove_ref(os->os_phys_buf, &os->os_phys_buf));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson /*

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson rw_enter(&os_lock, RW_READER);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson rw_exit(&os_lock);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson mutex_destroy(&os->os_lock);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson mutex_destroy(&os->os_obj_lock);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson mutex_destroy(&os->os_user_ptr_lock);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson kmem_free(os, sizeof (objset_t));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsondmu_objset_snap_cmtime(objset_t *os)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson{

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (dsl_dir_snap_cmtime(os->os_dsl_dataset->ds_dir));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

8d18220deb04ec7b12410cd90deb4d45e66d49bfMark J Musante

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsonobjset_t *

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsondmu_objset_create_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dmu_objset_type_t type, dmu_tx_t *tx)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson{

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson objset_t *os;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dnode_t *mdn;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson ASSERT(dmu_tx_is_syncing(tx));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (ds != NULL)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dmu_objset_from_ds(ds, &os));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson else

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dmu_objset_open_impl(spa, NULL, bp, &os));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson mdn = DMU_META_DNODE(os);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dnode_allocate(mdn, DMU_OT_DNODE, 1 << DNODE_BLOCK_SHIFT,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson DN_MAX_INDBLKSHIFT, DMU_OT_NONE, 0, tx);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson /*

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (ds != NULL) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson int levels = 1;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson /*

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson while ((uint64_t)mdn->dn_nblkptr << (mdn->dn_datablkshift +

fa9e4066f08beec538e775443c5be79dd423fcabahrens (levels - 1) * (mdn->dn_indblkshift - SPA_BLKPTRSHIFT)) <

fa9e4066f08beec538e775443c5be79dd423fcabahrens DN_MAX_OBJECT * sizeof (dnode_phys_t))

fa9e4066f08beec538e775443c5be79dd423fcabahrens levels++;

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens mdn->dn_next_nlevels[tx->tx_txg & TXG_MASK] =

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick mdn->dn_nlevels = levels;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick }

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(type != DMU_OST_NONE);

fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(type != DMU_OST_ANY);

fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(type < DMU_OST_NUMTYPES);

fa9e4066f08beec538e775443c5be79dd423fcabahrens os->os_phys->os_type = type;

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (dmu_objset_userused_enabled(os)) {

5ad820458efd0fdb914baff9c1447c22b819fa23nd os->os_phys->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE;

fa9e4066f08beec538e775443c5be79dd423fcabahrens os->os_flags = os->os_phys->os_flags;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick }

fa9e4066f08beec538e775443c5be79dd423fcabahrens

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dsl_dataset_dirty(ds, tx);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick return (os);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick}

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwicktypedef struct dmu_objset_create_arg {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick const char *doca_name;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson cred_t *doca_cred;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson void (*doca_userfunc)(objset_t *os, void *arg,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick cred_t *cr, dmu_tx_t *tx);

fa9e4066f08beec538e775443c5be79dd423fcabahrens void *doca_userarg;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dmu_objset_type_t doca_type;

fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t doca_flags;

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick} dmu_objset_create_arg_t;

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickstatic int

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickdmu_objset_create_check(void *arg, dmu_tx_t *tx)

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick{

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_objset_create_arg_t *doca = arg;

fa9e4066f08beec538e775443c5be79dd423fcabahrens dsl_pool_t *dp = dmu_tx_pool(tx);

fa9e4066f08beec538e775443c5be79dd423fcabahrens dsl_dir_t *pdd;

fa9e4066f08beec538e775443c5be79dd423fcabahrens const char *tail;

fa9e4066f08beec538e775443c5be79dd423fcabahrens int error;

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (strchr(doca->doca_name, '@') != NULL)

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick return (SET_ERROR(EINVAL));

fa9e4066f08beec538e775443c5be79dd423fcabahrens

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick error = dsl_dir_hold(dp, doca->doca_name, FTAG, &pdd, &tail);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (error != 0)

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick return (error);

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley if (tail == NULL) {

fa9e4066f08beec538e775443c5be79dd423fcabahrens dsl_dir_rele(pdd, FTAG);

fa9e4066f08beec538e775443c5be79dd423fcabahrens return (SET_ERROR(EEXIST));

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick }

fa9e4066f08beec538e775443c5be79dd423fcabahrens error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL,

fa9e4066f08beec538e775443c5be79dd423fcabahrens doca->doca_cred);

fa9e4066f08beec538e775443c5be79dd423fcabahrens dsl_dir_rele(pdd, FTAG);

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens return (error);

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

fa9e4066f08beec538e775443c5be79dd423fcabahrens

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickstatic void

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsondmu_objset_create_sync(void *arg, dmu_tx_t *tx)

fa9e4066f08beec538e775443c5be79dd423fcabahrens{

fa9e4066f08beec538e775443c5be79dd423fcabahrens dmu_objset_create_arg_t *doca = arg;

fa9e4066f08beec538e775443c5be79dd423fcabahrens dsl_pool_t *dp = dmu_tx_pool(tx);

fa9e4066f08beec538e775443c5be79dd423fcabahrens dsl_dir_t *pdd;

fa9e4066f08beec538e775443c5be79dd423fcabahrens const char *tail;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dsl_dataset_t *ds;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson uint64_t obj;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson blkptr_t *bp;

fa9e4066f08beec538e775443c5be79dd423fcabahrens objset_t *os;

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson VERIFY0(dsl_dir_hold(dp, doca->doca_name, FTAG, &pdd, &tail));

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson obj = dsl_dataset_create_sync(pdd, tail, NULL, doca->doca_flags,

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson doca->doca_cred, tx);

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrens VERIFY0(dsl_dataset_hold_obj(pdd->dd_pool, obj, FTAG, &ds));

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson bp = dsl_dataset_get_blkptr(ds);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson os = dmu_objset_create_impl(pdd->dd_pool->dp_spa,

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson ds, bp, doca->doca_type, tx);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley if (doca->doca_userfunc != NULL) {

fb09f5aad449c97fe309678f3f604982b563a96fMadhav Suresh doca->doca_userfunc(os, doca->doca_userarg,

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley doca->doca_cred, tx);

fa9e4066f08beec538e775443c5be79dd423fcabahrens }

5ad820458efd0fdb914baff9c1447c22b819fa23nd

fa9e4066f08beec538e775443c5be79dd423fcabahrens spa_history_log_internal_ds(ds, "create", tx, "");

fa9e4066f08beec538e775443c5be79dd423fcabahrens dsl_dataset_rele(ds, FTAG);

fa9e4066f08beec538e775443c5be79dd423fcabahrens dsl_dir_rele(pdd, FTAG);

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

44cd46cadd9aab751dae6a4023c1cb5bf316d274billm

44cd46cadd9aab751dae6a4023c1cb5bf316d274billmdmu_objset_create(const char *name, dmu_objset_type_t type, uint64_t flags,

44cd46cadd9aab751dae6a4023c1cb5bf316d274billm void (*func)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx), void *arg)

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick{

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dmu_objset_create_arg_t doca;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick doca.doca_name = name;

44cd46cadd9aab751dae6a4023c1cb5bf316d274billm doca.doca_cred = CRED();

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson doca.doca_flags = flags;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick doca.doca_userfunc = func;

44cd46cadd9aab751dae6a4023c1cb5bf316d274billm doca.doca_userarg = arg;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick doca.doca_type = type;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick return (dsl_sync_task(name,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dmu_objset_create_check, dmu_objset_create_sync, &doca, 5));

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson}

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilsontypedef struct dmu_objset_clone_arg {

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson const char *doca_clone;

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson const char *doca_origin;

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson cred_t *doca_cred;

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson} dmu_objset_clone_arg_t;

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilsonstatic int

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwickdmu_objset_clone_check(void *arg, dmu_tx_t *tx)

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick{

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dmu_objset_clone_arg_t *doca = arg;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dsl_dir_t *pdd;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick const char *tail;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick int error;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dsl_dataset_t *origin;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dsl_pool_t *dp = dmu_tx_pool(tx);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (strchr(doca->doca_clone, '@') != NULL)

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick return (SET_ERROR(EINVAL));

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick error = dsl_dir_hold(dp, doca->doca_clone, FTAG, &pdd, &tail);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (error != 0)

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick return (error);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (tail == NULL) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dsl_dir_rele(pdd, FTAG);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick return (SET_ERROR(EEXIST));

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick }

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick /* You can't clone across pools. */

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (pdd->dd_pool != dp) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dir_rele(pdd, FTAG);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick return (SET_ERROR(EXDEV));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL,

44cd46cadd9aab751dae6a4023c1cb5bf316d274billm doca->doca_cred);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (error != 0) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dir_rele(pdd, FTAG);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (SET_ERROR(EDQUOT));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dir_rele(pdd, FTAG);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson error = dsl_dataset_hold(dp, doca->doca_origin, FTAG, &origin);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (error != 0)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (error);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson /* You can't clone across pools. */

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (origin->ds_dir->dd_pool != dp) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dataset_rele(origin, FTAG);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (SET_ERROR(EXDEV));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson /* You can only clone snapshots, not the head datasets. */

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson if (!dsl_dataset_is_snapshot(origin)) {

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dataset_rele(origin, FTAG);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (SET_ERROR(EINVAL));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson }

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dataset_rele(origin, FTAG);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick return (0);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson}

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilsonstatic void

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsondmu_objset_clone_sync(void *arg, dmu_tx_t *tx)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson{

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dmu_objset_clone_arg_t *doca = arg;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_pool_t *dp = dmu_tx_pool(tx);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dir_t *pdd;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson const char *tail;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dataset_t *origin, *ds;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson uint64_t obj;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson char namebuf[MAXNAMELEN];

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dsl_dir_hold(dp, doca->doca_clone, FTAG, &pdd, &tail));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson VERIFY0(dsl_dataset_hold(dp, doca->doca_origin, FTAG, &origin));

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson obj = dsl_dataset_create_sync(pdd, tail, origin, 0,

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson doca->doca_cred, tx);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick VERIFY0(dsl_dataset_hold_obj(pdd->dd_pool, obj, FTAG, &ds));

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dsl_dataset_name(origin, namebuf);

09c9d376e8ccb8fbba74f33cc268964464092b62George Wilson spa_history_log_internal_ds(ds, "clone", tx,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick "origin=%s (%llu)", namebuf, origin->ds_object);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson dsl_dataset_rele(ds, FTAG);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dsl_dataset_rele(origin, FTAG);

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson dsl_dir_rele(pdd, FTAG);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick}

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

44cd46cadd9aab751dae6a4023c1cb5bf316d274billmdmu_objset_clone(const char *clone, const char *origin)

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley{

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley dmu_objset_clone_arg_t doca;

01f55e48fb4d524eaf70687728aa51b7762e2e97George Wilson

01f55e48fb4d524eaf70687728aa51b7762e2e97George Wilson doca.doca_clone = clone;

01f55e48fb4d524eaf70687728aa51b7762e2e97George Wilson doca.doca_origin = origin;

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick doca.doca_cred = CRED();

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley return (dsl_sync_task(clone,

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley dmu_objset_clone_check, dmu_objset_clone_sync, &doca, 5));

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley}

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley

468c413a79615e77179e8d98f22a7e513a8135bdTim Haleydmu_objset_snapshot_one(const char *fsname, const char *snapname)

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson{

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson int err;

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson char *longsnap = kmem_asprintf("%s@%s", fsname, snapname);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson nvlist_t *snaps = fnvlist_alloc();

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson fnvlist_add_boolean(snaps, longsnap);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson strfree(longsnap);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson err = dsl_dataset_snapshot(snaps, NULL, NULL);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson fnvlist_free(snaps);

80eb36f241abf8c076119fb4c49a55fd61ebc710George Wilson return (err);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick}

d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwickstatic void

44cd46cadd9aab751dae6a4023c1cb5bf316d274billmdmu_objset_sync_dnodes(list_t *list, list_t *newlist, dmu_tx_t *tx)

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick{

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dnode_t *dn;

44cd46cadd9aab751dae6a4023c1cb5bf316d274billm

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick while (dn = list_head(list)) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick ASSERT(dn->dn_object != DMU_META_DNODE_OBJECT);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick ASSERT(dn->dn_dbuf->db_data_pending);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick /*

5f5f7a6f9c8e9c1587a54e690556d756ec67558cahrens dn->dn_zio = dn->dn_dbuf->db_data_pending->dr_zio;

5f5f7a6f9c8e9c1587a54e690556d756ec67558cahrens ASSERT(dn->dn_zio);

5f5f7a6f9c8e9c1587a54e690556d756ec67558cahrens

5f5f7a6f9c8e9c1587a54e690556d756ec67558cahrens ASSERT3U(dn->dn_nlevels, <=, DN_MAX_LEVELS);

5f5f7a6f9c8e9c1587a54e690556d756ec67558cahrens list_remove(list, dn);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

44cd46cadd9aab751dae6a4023c1cb5bf316d274billm if (newlist) {

44cd46cadd9aab751dae6a4023c1cb5bf316d274billm (void) dnode_add_ref(dn, newlist);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick list_insert_tail(newlist, dn);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick }

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dnode_sync(dn, tx);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson }

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson}

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsonstatic void

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsondmu_objset_write_ready(zio_t *zio, arc_buf_t *abuf, void *arg)

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson{

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson blkptr_t *bp = zio->io_bp;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson objset_t *os = arg;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dnode_phys_t *dnp = &os->os_phys->os_meta_dnode;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson ASSERT3P(bp, ==, os->os_rootbp);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson ASSERT3U(BP_GET_TYPE(bp), ==, DMU_OT_OBJSET);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson ASSERT0(BP_GET_LEVEL(bp));

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson /*

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson bp->blk_fill = 0;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson for (int i = 0; i < dnp->dn_nblkptr; i++)

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson bp->blk_fill += dnp->dn_blkptr[i].blk_fill;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson}

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsonstatic void

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsondmu_objset_write_done(zio_t *zio, arc_buf_t *abuf, void *arg)

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson{

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson blkptr_t *bp = zio->io_bp;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson blkptr_t *bp_orig = &zio->io_bp_orig;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson objset_t *os = arg;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (zio->io_flags & ZIO_FLAG_IO_REWRITE) {

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson ASSERT(BP_EQUAL(bp, bp_orig));

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson } else {

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dsl_dataset_t *ds = os->os_dsl_dataset;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dmu_tx_t *tx = os->os_synctx;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson (void) dsl_dataset_block_kill(ds, bp_orig, tx, B_TRUE);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dsl_dataset_block_born(ds, bp, tx);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson }

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson}

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsondmu_objset_sync(objset_t *os, zio_t *pio, dmu_tx_t *tx)

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson{

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson int txgoff;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson zbookmark_t zb;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson zio_prop_t zp;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson zio_t *zio;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson list_t *list;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson list_t *newlist = NULL;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dbuf_dirty_record_t *dr;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dprintf_ds(os->os_dsl_dataset, "txg=%llu\n", tx->tx_txg);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson ASSERT(dmu_tx_is_syncing(tx));

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson /* XXX the write_done callback should really give us the tx... */

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson os->os_synctx = tx;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (os->os_dsl_dataset == NULL) {

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson /*

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson os->os_copies = spa_max_replication(os->os_spa);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson }

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson /*

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson SET_BOOKMARK(&zb, os->os_dsl_dataset ?

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson os->os_dsl_dataset->ds_object : DMU_META_OBJSET,

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson arc_release(os->os_phys_buf, &os->os_phys_buf);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dmu_write_policy(os, NULL, 0, 0, &zp);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson zio = arc_write(pio, os->os_spa, tx->tx_txg,

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson os->os_rootbp, os->os_phys_buf, DMU_OS_IS_L2CACHEABLE(os),

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson DMU_OS_IS_L2COMPRESSIBLE(os), &zp, dmu_objset_write_ready,

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson NULL, dmu_objset_write_done, os, ZIO_PRIORITY_ASYNC_WRITE,

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson ZIO_FLAG_MUSTSUCCEED, &zb);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson /*

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson DMU_META_DNODE(os)->dn_zio = zio;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dnode_sync(DMU_META_DNODE(os), tx);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson os->os_phys->os_flags = os->os_flags;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (DMU_USERUSED_DNODE(os) &&

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson DMU_USERUSED_DNODE(os)->dn_type != DMU_OT_NONE) {

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson DMU_USERUSED_DNODE(os)->dn_zio = zio;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dnode_sync(DMU_USERUSED_DNODE(os), tx);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson DMU_GROUPUSED_DNODE(os)->dn_zio = zio;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dnode_sync(DMU_GROUPUSED_DNODE(os), tx);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson }

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson txgoff = tx->tx_txg & TXG_MASK;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (dmu_objset_userused_enabled(os)) {

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson newlist = &os->os_synced_dnodes;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson /*

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson list_create(newlist, sizeof (dnode_t),

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson offsetof(dnode_t, dn_dirty_link[txgoff]));

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson }

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dmu_objset_sync_dnodes(&os->os_free_dnodes[txgoff], newlist, tx);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dmu_objset_sync_dnodes(&os->os_dirty_dnodes[txgoff], newlist, tx);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson list = &DMU_META_DNODE(os)->dn_dirty_records[txgoff];

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson while (dr = list_head(list)) {

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson ASSERT0(dr->dr_dbuf->db_level);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson list_remove(list, dr);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (dr->dr_zio)

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson zio_nowait(dr->dr_zio);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson }

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson /*

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson zil_sync(os->os_zil, tx);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson os->os_phys->os_zil_header = os->os_zil_header;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson zio_nowait(zio);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson}

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsondmu_objset_is_dirty(objset_t *os, uint64_t txg)

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson{

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson return (!list_is_empty(&os->os_dirty_dnodes[txg & TXG_MASK]) ||

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson !list_is_empty(&os->os_free_dnodes[txg & TXG_MASK]));

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson}

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsonstatic objset_used_cb_t *used_cbs[DMU_OST_NUMTYPES];

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

fa9e4066f08beec538e775443c5be79dd423fcabahrensdmu_objset_register_type(dmu_objset_type_t ost, objset_used_cb_t *cb)

fa9e4066f08beec538e775443c5be79dd423fcabahrens{

fa9e4066f08beec538e775443c5be79dd423fcabahrens used_cbs[ost] = cb;

fa9e4066f08beec538e775443c5be79dd423fcabahrens}

fa9e4066f08beec538e775443c5be79dd423fcabahrens

fa9e4066f08beec538e775443c5be79dd423fcabahrensdmu_objset_userused_enabled(objset_t *os)

fa9e4066f08beec538e775443c5be79dd423fcabahrens{

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick return (spa_version(os->os_spa) >= SPA_VERSION_USERSPACE &&

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson used_cbs[os->os_phys->os_type] != NULL &&

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson DMU_USERUSED_DNODE(os) != NULL);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson}

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwickstatic void

fa9e4066f08beec538e775443c5be79dd423fcabahrensdo_userquota_update(objset_t *os, uint64_t used, uint64_t flags,

fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t user, uint64_t group, boolean_t subtract, dmu_tx_t *tx)

fa9e4066f08beec538e775443c5be79dd423fcabahrens{

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson if ((flags & DNODE_FLAG_USERUSED_ACCOUNTED)) {

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson int64_t delta = DNODE_SIZE + used;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (subtract)

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson delta = -delta;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson VERIFY3U(0, ==, zap_increment_int(os, DMU_USERUSED_OBJECT,

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson user, delta, tx));

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson VERIFY3U(0, ==, zap_increment_int(os, DMU_GROUPUSED_OBJECT,

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson group, delta, tx));

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson }

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson}

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsondmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx)

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson{

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dnode_t *dn;

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley list_t *list = &os->os_synced_dnodes;

fa9e4066f08beec538e775443c5be79dd423fcabahrens

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick ASSERT(list_head(list) == NULL || dmu_objset_userused_enabled(os));

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick while (dn = list_head(list)) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick int flags;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick ASSERT(!DMU_OBJECT_IS_SPECIAL(dn->dn_object));

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick ASSERT(dn->dn_phys->dn_type == DMU_OT_NONE ||

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dn->dn_phys->dn_flags &

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick DNODE_FLAG_USERUSED_ACCOUNTED);

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley /* Allocate the user/groupused objects if necessary. */

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (DMU_USERUSED_DNODE(os)->dn_type == DMU_OT_NONE) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick VERIFY(0 == zap_create_claim(os,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick DMU_USERUSED_OBJECT,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx));

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick VERIFY(0 == zap_create_claim(os,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick DMU_GROUPUSED_OBJECT,

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx));

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick }

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick /*

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson flags = dn->dn_id_flags;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson ASSERT(flags);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (flags & DN_ID_OLD_EXIST) {

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson do_userquota_update(os, dn->dn_oldused, dn->dn_oldflags,

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dn->dn_olduid, dn->dn_oldgid, B_TRUE, tx);

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley }

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (flags & DN_ID_NEW_EXIST) {

fa9e4066f08beec538e775443c5be79dd423fcabahrens do_userquota_update(os, DN_USED_BYTES(dn->dn_phys),

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dn->dn_phys->dn_flags, dn->dn_newuid,

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dn->dn_newgid, B_FALSE, tx);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson }

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson mutex_enter(&dn->dn_mtx);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dn->dn_oldused = 0;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dn->dn_oldflags = 0;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (dn->dn_id_flags & DN_ID_NEW_EXIST) {

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dn->dn_olduid = dn->dn_newuid;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dn->dn_oldgid = dn->dn_newgid;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dn->dn_id_flags |= DN_ID_OLD_EXIST;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (dn->dn_bonuslen == 0)

fa9e4066f08beec538e775443c5be79dd423fcabahrens dn->dn_id_flags |= DN_ID_CHKED_SPILL;

fa9e4066f08beec538e775443c5be79dd423fcabahrens else

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dn->dn_id_flags |= DN_ID_CHKED_BONUS;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson }

fa9e4066f08beec538e775443c5be79dd423fcabahrens dn->dn_id_flags &= ~(DN_ID_NEW_EXIST);

fa9e4066f08beec538e775443c5be79dd423fcabahrens mutex_exit(&dn->dn_mtx);

fa9e4066f08beec538e775443c5be79dd423fcabahrens

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson list_remove(list, dn);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick dnode_rele(dn, list);

1934e92fc930c49429ad71a8ca97340f33227e78maybee }

1934e92fc930c49429ad71a8ca97340f33227e78maybee}

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic void *

fa9e4066f08beec538e775443c5be79dd423fcabahrensdmu_objset_userquota_find_data(dmu_buf_impl_t *db, dmu_tx_t *tx)

fa9e4066f08beec538e775443c5be79dd423fcabahrens{

fa9e4066f08beec538e775443c5be79dd423fcabahrens dbuf_dirty_record_t *dr, **drp;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick void *data;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (db->db_dirtycnt == 0)

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson return (db->db.db_data); /* Nothing is changing */

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick for (drp = &db->db_last_dirty; (dr = *drp) != NULL; drp = &dr->dr_next)

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (dr->dr_txg == tx->tx_txg)

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley break;

fa9e4066f08beec538e775443c5be79dd423fcabahrens

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson if (dr == NULL) {

88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson data = NULL;

fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {

fa9e4066f08beec538e775443c5be79dd423fcabahrens dnode_t *dn;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick DB_DNODE_ENTER(dr->dr_dbuf);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson dn = DB_DNODE(dr->dr_dbuf);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson if (dn->dn_bonuslen == 0 &&

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson dr->dr_dbuf->db_blkid == DMU_SPILL_BLKID)

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley data = dr->dt.dl.dr_data->b_data;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson else

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson data = dr->dt.dl.dr_data;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick DB_DNODE_EXIT(dr->dr_dbuf);

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson }

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson return (data);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick}

fa9e4066f08beec538e775443c5be79dd423fcabahrens

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilsondmu_objset_userquota_get_ids(dnode_t *dn, boolean_t before, dmu_tx_t *tx)

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson{

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson objset_t *os = dn->dn_objset;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson void *data = NULL;

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley dmu_buf_impl_t *db = NULL;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson uint64_t *user = NULL;

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson uint64_t *group = NULL;

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson int flags = dn->dn_id_flags;

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson int error;

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley boolean_t have_spill = B_FALSE;

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick

fa9e4066f08beec538e775443c5be79dd423fcabahrens if (!dmu_objset_userused_enabled(dn->dn_objset))

fa9e4066f08beec538e775443c5be79dd423fcabahrens return;

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson if (before && (flags & (DN_ID_CHKED_BONUS|DN_ID_OLD_EXIST|

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley DN_ID_CHKED_SPILL)))

b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick return;

fa9e4066f08beec538e775443c5be79dd423fcabahrens

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson if (before && dn->dn_bonuslen != 0)

16a4a8074274d2d7cc408589cf6359f4a378c861George Wilson data = DN_BONUS(dn->dn_phys);

fa9e4066f08beec538e775443c5be79dd423fcabahrens else if (!before && dn->dn_bonuslen != 0) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick if (dn->dn_bonus) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick db = dn->dn_bonus;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick mutex_enter(&db->db_mtx);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick data = dmu_objset_userquota_find_data(db, tx);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick } else {

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson data = DN_BONUS(dn->dn_phys);

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson }

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson } else if (dn->dn_bonuslen == 0 && dn->dn_bonustype == DMU_OT_SA) {

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson int rf = 0;

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson if (RW_WRITE_HELD(&dn->dn_struct_rwlock))

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson rf |= DB_RF_HAVESTRUCT;

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson error = dmu_spill_hold_by_dnode(dn,

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson rf | DB_RF_MUST_SUCCEED,

9eb57f7f3fbb970d4b9b89dcd5ecf543fe2414d5George Wilson FTAG, (dmu_buf_t **)&db);

fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(error == 0);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick mutex_enter(&db->db_mtx);

fa9e4066f08beec538e775443c5be79dd423fcabahrens data = (before) ? db->db.db_data :

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley dmu_objset_userquota_find_data(db, tx);

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley have_spill = B_TRUE;

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley } else {

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley mutex_enter(&dn->dn_mtx);

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley dn->dn_id_flags |= DN_ID_CHKED_BONUS;

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley mutex_exit(&dn->dn_mtx);

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley return;

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley }

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley if (before) {

468c413a79615e77179e8d98f22a7e513a8135bdTim Haley ASSERT(data);

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick user = &dn->dn_olduid;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick group = &dn->dn_oldgid;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick } else if (data) {

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick user = &dn->dn_newuid;

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick group = &dn->dn_newgid;

44cd46cadd9aab751dae6a4023c1cb5bf316d274billm }

ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick