* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
+ * or https://opensource.org/licenses/CDDL-1.0.
* See the License for the specific language governing permissions
* and limitations under the License.
*
*
* CDDL HEADER END
*/
+
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2016 by Delphix. All rights reserved.
+ * Copyright (c) 2012, 2020 by Delphix. All rights reserved.
* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
* Copyright (c) 2013, Joyent, Inc. All rights reserved.
* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
- * Copyright (c) 2015 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2015, STRATO AG, Inc. All rights reserved.
* Copyright (c) 2016 Actifio, Inc. All rights reserved.
+ * Copyright 2017 Nexenta Systems, Inc.
+ * Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
+ * Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
+ * Copyright (c) 2019, Klara Inc.
+ * Copyright (c) 2019, Allan Jude
+ * Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
*/
/* Portions Copyright 2010 Robert Milkowski */
-#include <sys/zfeature.h>
#include <sys/cred.h>
#include <sys/zfs_context.h>
#include <sys/dmu_objset.h>
#include <sys/zfs_onexit.h>
#include <sys/dsl_destroy.h>
#include <sys/vdev.h>
+#include <sys/zfeature.h>
#include <sys/policy.h>
#include <sys/spa_impl.h>
+#include <sys/dmu_recv.h>
+#include <sys/zfs_project.h>
+#include "zfs_namecheck.h"
+#include <sys/vdev_impl.h>
+#include <sys/arc.h>
/*
* Needed to close a window in dnode_move() that allows the objset to be freed
krwlock_t os_lock;
/*
- * Tunable to overwrite the maximum number of threads for the parallization
+ * Tunable to overwrite the maximum number of threads for the parallelization
* of dmu_objset_find_dp, needed to speed up the import of pools with many
* datasets.
* Default is 4 times the number of leaf vdevs.
*/
-int dmu_find_threads = 0;
+static const int dmu_find_threads = 0;
/*
* Backfill lower metadnode objects after this many have been freed.
* Backfilling negatively impacts object creation rates, so only do it
* if there are enough holes to fill.
*/
-int dmu_rescan_dnode_threshold = 1 << DN_MAX_INDBLKSHIFT;
+static const int dmu_rescan_dnode_threshold = 1 << DN_MAX_INDBLKSHIFT;
+
+static const char *upgrade_tag = "upgrade_tag";
static void dmu_objset_find_dp_cb(void *arg);
*/
ASSERT(newval != ZIO_COMPRESS_INHERIT);
- os->os_compress = zio_compress_select(os->os_spa, newval,
- ZIO_COMPRESS_ON);
+ os->os_compress = zio_compress_select(os->os_spa,
+ ZIO_COMPRESS_ALGO(newval), ZIO_COMPRESS_ON);
+ os->os_complevel = zio_complevel_select(os->os_spa, os->os_compress,
+ ZIO_COMPRESS_LEVEL(newval), ZIO_COMPLEVEL_DEFAULT);
}
static void
os->os_secondary_cache = newval;
}
+static void
+prefetch_changed_cb(void *arg, uint64_t newval)
+{
+ objset_t *os = arg;
+
+ /*
+ * Inheritance should have been done by now.
+ */
+ ASSERT(newval == ZFS_PREFETCH_ALL || newval == ZFS_PREFETCH_NONE ||
+ newval == ZFS_PREFETCH_METADATA);
+ os->os_prefetch = newval;
+}
+
static void
sync_changed_cb(void *arg, uint64_t newval)
{
* Inheritance and range checking should have been done by now.
*/
ASSERT(newval == ZFS_REDUNDANT_METADATA_ALL ||
- newval == ZFS_REDUNDANT_METADATA_MOST);
+ newval == ZFS_REDUNDANT_METADATA_MOST ||
+ newval == ZFS_REDUNDANT_METADATA_SOME ||
+ newval == ZFS_REDUNDANT_METADATA_NONE);
os->os_redundant_metadata = newval;
}
}
}
+static void
+smallblk_changed_cb(void *arg, uint64_t newval)
+{
+ objset_t *os = arg;
+
+ /*
+ * Inheritance and range checking should have been done by now.
+ */
+ ASSERT(newval <= SPA_MAXBLOCKSIZE);
+ ASSERT(ISP2(newval));
+
+ os->os_zpl_special_smallblock = newval;
+}
+
static void
logbias_changed_cb(void *arg, uint64_t newval)
{
{
objset_phys_t *osp = buf;
- ASSERT(size == OBJSET_OLD_PHYS_SIZE || size == sizeof (objset_phys_t));
+ ASSERT(size == OBJSET_PHYS_SIZE_V1 || size == OBJSET_PHYS_SIZE_V2 ||
+ size == sizeof (objset_phys_t));
dnode_byteswap(&osp->os_meta_dnode);
byteswap_uint64_array(&osp->os_zil_header, sizeof (zil_header_t));
osp->os_type = BSWAP_64(osp->os_type);
osp->os_flags = BSWAP_64(osp->os_flags);
- if (size == sizeof (objset_phys_t)) {
+ if (size >= OBJSET_PHYS_SIZE_V2) {
dnode_byteswap(&osp->os_userused_dnode);
dnode_byteswap(&osp->os_groupused_dnode);
+ if (size >= sizeof (objset_phys_t))
+ dnode_byteswap(&osp->os_projectused_dnode);
+ }
+}
+
+/*
+ * The hash is a CRC-based hash of the objset_t pointer and the object number.
+ */
+static uint64_t
+dnode_hash(const objset_t *os, uint64_t obj)
+{
+ uintptr_t osv = (uintptr_t)os;
+ uint64_t crc = -1ULL;
+
+ ASSERT(zfs_crc64_table[128] == ZFS_CRC64_POLY);
+ /*
+ * The low 6 bits of the pointer don't have much entropy, because
+ * the objset_t is larger than 2^6 bytes long.
+ */
+ crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (osv >> 6)) & 0xFF];
+ crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (obj >> 0)) & 0xFF];
+ crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (obj >> 8)) & 0xFF];
+ crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (obj >> 16)) & 0xFF];
+
+ crc ^= (osv>>14) ^ (obj>>24);
+
+ return (crc);
+}
+
+static unsigned int
+dnode_multilist_index_func(multilist_t *ml, void *obj)
+{
+ dnode_t *dn = obj;
+
+ /*
+ * The low order bits of the hash value are thought to be
+ * distributed evenly. Otherwise, in the case that the multilist
+ * has a power of two number of sublists, each sublists' usage
+ * would not be evenly distributed. In this context full 64bit
+ * division would be a waste of time, so limit it to 32 bits.
+ */
+ return ((unsigned int)dnode_hash(dn->dn_objset, dn->dn_object) %
+ multilist_get_num_sublists(ml));
+}
+
+static inline boolean_t
+dmu_os_is_l2cacheable(objset_t *os)
+{
+ if (os->os_secondary_cache == ZFS_CACHE_ALL ||
+ os->os_secondary_cache == ZFS_CACHE_METADATA) {
+ if (l2arc_exclude_special == 0)
+ return (B_TRUE);
+
+ blkptr_t *bp = os->os_rootbp;
+ if (bp == NULL || BP_IS_HOLE(bp))
+ return (B_FALSE);
+ uint64_t vdev = DVA_GET_VDEV(bp->blk_dva);
+ vdev_t *rvd = os->os_spa->spa_root_vdev;
+ vdev_t *vd = NULL;
+
+ if (vdev < rvd->vdev_children)
+ vd = rvd->vdev_child[vdev];
+
+ if (vd == NULL)
+ return (B_TRUE);
+
+ if (vd->vdev_alloc_bias != VDEV_BIAS_SPECIAL &&
+ vd->vdev_alloc_bias != VDEV_BIAS_DEDUP)
+ return (B_TRUE);
}
+ return (B_FALSE);
}
+/*
+ * Instantiates the objset_t in-memory structure corresponding to the
+ * objset_phys_t that's pointed to by the specified blkptr_t.
+ */
int
dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,
objset_t **osp)
int i, err;
ASSERT(ds == NULL || MUTEX_HELD(&ds->ds_opening_lock));
+ ASSERT(!BP_IS_REDACTED(bp));
+
+ /*
+ * We need the pool config lock to get properties.
+ */
+ ASSERT(ds == NULL || dsl_pool_config_held(ds->ds_dir->dd_pool));
+
+ /*
+ * The $ORIGIN dataset (if it exists) doesn't have an associated
+ * objset, so there's no reason to open it. The $ORIGIN dataset
+ * will not exist on pools older than SPA_VERSION_ORIGIN.
+ */
+ if (ds != NULL && spa_get_dsl(spa) != NULL &&
+ spa_get_dsl(spa)->dp_origin_snap != NULL) {
+ ASSERT3P(ds->ds_dir, !=,
+ spa_get_dsl(spa)->dp_origin_snap->ds_dir);
+ }
os = kmem_zalloc(sizeof (objset_t), KM_SLEEP);
os->os_dsl_dataset = ds;
if (!BP_IS_HOLE(os->os_rootbp)) {
arc_flags_t aflags = ARC_FLAG_WAIT;
zbookmark_phys_t zb;
+ int size;
+ zio_flag_t zio_flags = ZIO_FLAG_CANFAIL;
SET_BOOKMARK(&zb, ds ? ds->ds_object : DMU_META_OBJSET,
ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID);
- if (DMU_OS_IS_L2CACHEABLE(os))
+ if (dmu_os_is_l2cacheable(os))
aflags |= ARC_FLAG_L2CACHE;
+ if (ds != NULL && ds->ds_dir->dd_crypto_obj != 0) {
+ ASSERT3U(BP_GET_COMPRESS(bp), ==, ZIO_COMPRESS_OFF);
+ ASSERT(BP_IS_AUTHENTICATED(bp));
+ zio_flags |= ZIO_FLAG_RAW;
+ }
+
dprintf_bp(os->os_rootbp, "reading %s", "");
err = arc_read(NULL, spa, os->os_rootbp,
arc_getbuf_func, &os->os_phys_buf,
- ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL, &aflags, &zb);
+ ZIO_PRIORITY_SYNC_READ, zio_flags, &aflags, &zb);
if (err != 0) {
kmem_free(os, sizeof (objset_t));
/* convert checksum errors into IO errors */
return (err);
}
+ if (spa_version(spa) < SPA_VERSION_USERSPACE)
+ size = OBJSET_PHYS_SIZE_V1;
+ else if (!spa_feature_is_enabled(spa,
+ SPA_FEATURE_PROJECT_QUOTA))
+ size = OBJSET_PHYS_SIZE_V2;
+ else
+ size = sizeof (objset_phys_t);
+
/* Increase the blocksize if we are permitted. */
- if (spa_version(spa) >= SPA_VERSION_USERSPACE &&
- arc_buf_size(os->os_phys_buf) < sizeof (objset_phys_t)) {
+ if (arc_buf_size(os->os_phys_buf) < size) {
arc_buf_t *buf = arc_alloc_buf(spa, &os->os_phys_buf,
- ARC_BUFC_METADATA, sizeof (objset_phys_t));
- bzero(buf->b_data, sizeof (objset_phys_t));
- bcopy(os->os_phys_buf->b_data, buf->b_data,
+ ARC_BUFC_METADATA, size);
+ memset(buf->b_data, 0, size);
+ memcpy(buf->b_data, os->os_phys_buf->b_data,
arc_buf_size(os->os_phys_buf));
arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf);
os->os_phys_buf = buf;
os->os_flags = os->os_phys->os_flags;
} else {
int size = spa_version(spa) >= SPA_VERSION_USERSPACE ?
- sizeof (objset_phys_t) : OBJSET_OLD_PHYS_SIZE;
+ sizeof (objset_phys_t) : OBJSET_PHYS_SIZE_V1;
os->os_phys_buf = arc_alloc_buf(spa, &os->os_phys_buf,
ARC_BUFC_METADATA, size);
os->os_phys = os->os_phys_buf->b_data;
- bzero(os->os_phys, size);
+ memset(os->os_phys, 0, size);
}
+ /*
+ * These properties will be filled in by the logic in zfs_get_zplprop()
+ * when they are queried for the first time.
+ */
+ os->os_version = OBJSET_PROP_UNINITIALIZED;
+ os->os_normalization = OBJSET_PROP_UNINITIALIZED;
+ os->os_utf8only = OBJSET_PROP_UNINITIALIZED;
+ os->os_casesensitivity = OBJSET_PROP_UNINITIALIZED;
/*
* Note: the changed_cb will be called once before the register
* checksum/compression/copies.
*/
if (ds != NULL) {
- boolean_t needlock = B_FALSE;
+ os->os_encrypted = (ds->ds_dir->dd_crypto_obj != 0);
- /*
- * Note: it's valid to open the objset if the dataset is
- * long-held, in which case the pool_config lock will not
- * be held.
- */
- if (!dsl_pool_config_held(dmu_objset_pool(os))) {
- needlock = B_TRUE;
- dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
- }
err = dsl_prop_register(ds,
zfs_prop_to_name(ZFS_PROP_PRIMARYCACHE),
primary_cache_changed_cb, os);
zfs_prop_to_name(ZFS_PROP_SECONDARYCACHE),
secondary_cache_changed_cb, os);
}
+ if (err == 0) {
+ err = dsl_prop_register(ds,
+ zfs_prop_to_name(ZFS_PROP_PREFETCH),
+ prefetch_changed_cb, os);
+ }
if (!ds->ds_is_snapshot) {
if (err == 0) {
err = dsl_prop_register(ds,
zfs_prop_to_name(ZFS_PROP_DNODESIZE),
dnodesize_changed_cb, os);
}
+ if (err == 0) {
+ err = dsl_prop_register(ds,
+ zfs_prop_to_name(
+ ZFS_PROP_SPECIAL_SMALL_BLOCKS),
+ smallblk_changed_cb, os);
+ }
}
- if (needlock)
- dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
if (err != 0) {
arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf);
kmem_free(os, sizeof (objset_t));
/* It's the meta-objset. */
os->os_checksum = ZIO_CHECKSUM_FLETCHER_4;
os->os_compress = ZIO_COMPRESS_ON;
+ os->os_complevel = ZIO_COMPLEVEL_DEFAULT;
+ os->os_encrypted = B_FALSE;
os->os_copies = spa_max_replication(spa);
os->os_dedup_checksum = ZIO_CHECKSUM_OFF;
os->os_dedup_verify = B_FALSE;
os->os_primary_cache = ZFS_CACHE_ALL;
os->os_secondary_cache = ZFS_CACHE_ALL;
os->os_dnodesize = DNODE_MIN_SIZE;
+ os->os_prefetch = ZFS_PREFETCH_ALL;
}
if (ds == NULL || !ds->ds_is_snapshot)
os->os_zil = zil_alloc(os, &os->os_zil_header);
for (i = 0; i < TXG_SIZE; i++) {
- list_create(&os->os_dirty_dnodes[i], sizeof (dnode_t),
- offsetof(dnode_t, dn_dirty_link[i]));
- list_create(&os->os_free_dnodes[i], sizeof (dnode_t),
- offsetof(dnode_t, dn_dirty_link[i]));
+ multilist_create(&os->os_dirty_dnodes[i], sizeof (dnode_t),
+ offsetof(dnode_t, dn_dirty_link[i]),
+ dnode_multilist_index_func);
}
list_create(&os->os_dnodes, sizeof (dnode_t),
offsetof(dnode_t, dn_link));
list_link_init(&os->os_evicting_node);
mutex_init(&os->os_lock, NULL, MUTEX_DEFAULT, NULL);
+ mutex_init(&os->os_userused_lock, NULL, MUTEX_DEFAULT, NULL);
mutex_init(&os->os_obj_lock, NULL, MUTEX_DEFAULT, NULL);
mutex_init(&os->os_user_ptr_lock, NULL, MUTEX_DEFAULT, NULL);
+ os->os_obj_next_percpu_len = boot_ncpus;
+ os->os_obj_next_percpu = kmem_zalloc(os->os_obj_next_percpu_len *
+ sizeof (os->os_obj_next_percpu[0]), KM_SLEEP);
dnode_special_open(os, &os->os_phys->os_meta_dnode,
DMU_META_DNODE_OBJECT, &os->os_meta_dnode);
- if (arc_buf_size(os->os_phys_buf) >= sizeof (objset_phys_t)) {
+ if (OBJSET_BUF_HAS_USERUSED(os->os_phys_buf)) {
dnode_special_open(os, &os->os_phys->os_userused_dnode,
DMU_USERUSED_OBJECT, &os->os_userused_dnode);
dnode_special_open(os, &os->os_phys->os_groupused_dnode,
DMU_GROUPUSED_OBJECT, &os->os_groupused_dnode);
+ if (OBJSET_BUF_HAS_PROJECTUSED(os->os_phys_buf))
+ dnode_special_open(os,
+ &os->os_phys->os_projectused_dnode,
+ DMU_PROJECTUSED_OBJECT, &os->os_projectused_dnode);
}
mutex_init(&os->os_upgrade_lock, NULL, MUTEX_DEFAULT, NULL);
int err = 0;
/*
- * We shouldn't be doing anything with dsl_dataset_t's unless the
- * pool_config lock is held, or the dataset is long-held.
+ * We need the pool_config lock to manipulate the dsl_dataset_t.
+ * Even if the dataset is long-held, we need the pool_config lock
+ * to open the objset, as it needs to get properties.
*/
- ASSERT(dsl_pool_config_held(ds->ds_dir->dd_pool) ||
- dsl_dataset_long_held(ds));
+ ASSERT(dsl_pool_config_held(ds->ds_dir->dd_pool));
mutex_enter(&ds->ds_opening_lock);
if (ds->ds_objset == NULL) {
objset_t *os;
+ rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
err = dmu_objset_open_impl(dsl_dataset_get_spa(ds),
ds, dsl_dataset_get_blkptr(ds), &os);
+ rrw_exit(&ds->ds_bp_rwlock, FTAG);
if (err == 0) {
mutex_enter(&ds->ds_lock);
* can be held at a time.
*/
int
-dmu_objset_hold(const char *name, void *tag, objset_t **osp)
+dmu_objset_hold_flags(const char *name, boolean_t decrypt, const void *tag,
+ objset_t **osp)
{
dsl_pool_t *dp;
dsl_dataset_t *ds;
int err;
+ ds_hold_flags_t flags;
+ flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
err = dsl_pool_hold(name, tag, &dp);
if (err != 0)
return (err);
- err = dsl_dataset_hold(dp, name, tag, &ds);
+ err = dsl_dataset_hold_flags(dp, name, flags, tag, &ds);
if (err != 0) {
dsl_pool_rele(dp, tag);
return (err);
return (err);
}
+int
+dmu_objset_hold(const char *name, const void *tag, objset_t **osp)
+{
+ return (dmu_objset_hold_flags(name, B_FALSE, tag, osp));
+}
+
static int
dmu_objset_own_impl(dsl_dataset_t *ds, dmu_objset_type_t type,
- boolean_t readonly, void *tag, objset_t **osp)
+ boolean_t readonly, boolean_t decrypt, const void *tag, objset_t **osp)
{
- int err;
+ (void) tag;
- err = dmu_objset_from_ds(ds, osp);
+ int err = dmu_objset_from_ds(ds, osp);
if (err != 0) {
- dsl_dataset_disown(ds, tag);
+ return (err);
} else if (type != DMU_OST_ANY && type != (*osp)->os_phys->os_type) {
- dsl_dataset_disown(ds, tag);
return (SET_ERROR(EINVAL));
} else if (!readonly && dsl_dataset_is_snapshot(ds)) {
- dsl_dataset_disown(ds, tag);
+ return (SET_ERROR(EROFS));
+ } else if (!readonly && decrypt &&
+ dsl_dir_incompatible_encryption_version(ds->ds_dir)) {
return (SET_ERROR(EROFS));
}
- return (err);
+
+ /* if we are decrypting, we can now check MACs in os->os_phys_buf */
+ if (decrypt && arc_is_unauthenticated((*osp)->os_phys_buf)) {
+ zbookmark_phys_t zb;
+
+ SET_BOOKMARK(&zb, ds->ds_object, ZB_ROOT_OBJECT,
+ ZB_ROOT_LEVEL, ZB_ROOT_BLKID);
+ err = arc_untransform((*osp)->os_phys_buf, (*osp)->os_spa,
+ &zb, B_FALSE);
+ if (err != 0)
+ return (err);
+
+ ASSERT0(arc_is_unauthenticated((*osp)->os_phys_buf));
+ }
+
+ return (0);
}
/*
*/
int
dmu_objset_own(const char *name, dmu_objset_type_t type,
- boolean_t readonly, void *tag, objset_t **osp)
+ boolean_t readonly, boolean_t decrypt, const void *tag, objset_t **osp)
{
dsl_pool_t *dp;
dsl_dataset_t *ds;
int err;
+ ds_hold_flags_t flags;
+ flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
err = dsl_pool_hold(name, FTAG, &dp);
if (err != 0)
return (err);
- err = dsl_dataset_own(dp, name, tag, &ds);
+ err = dsl_dataset_own(dp, name, flags, tag, &ds);
if (err != 0) {
dsl_pool_rele(dp, FTAG);
return (err);
}
- err = dmu_objset_own_impl(ds, type, readonly, tag, osp);
- dsl_pool_rele(dp, FTAG);
+ err = dmu_objset_own_impl(ds, type, readonly, decrypt, tag, osp);
+ if (err != 0) {
+ dsl_dataset_disown(ds, flags, tag);
+ dsl_pool_rele(dp, FTAG);
+ return (err);
+ }
- if (err == 0 && dmu_objset_userobjspace_upgradable(*osp))
- dmu_objset_userobjspace_upgrade(*osp);
+ /*
+ * User accounting requires the dataset to be decrypted and rw.
+ * We also don't begin user accounting during claiming to help
+ * speed up pool import times and to keep this txg reserved
+ * completely for recovery work.
+ */
+ if (!readonly && !dp->dp_spa->spa_claiming &&
+ (ds->ds_dir->dd_crypto_obj == 0 || decrypt)) {
+ if (dmu_objset_userobjspace_upgradable(*osp) ||
+ dmu_objset_projectquota_upgradable(*osp)) {
+ dmu_objset_id_quota_upgrade(*osp);
+ } else if (dmu_objset_userused_enabled(*osp)) {
+ dmu_objset_userspace_upgrade(*osp);
+ }
+ }
- return (err);
+ dsl_pool_rele(dp, FTAG);
+ return (0);
}
int
dmu_objset_own_obj(dsl_pool_t *dp, uint64_t obj, dmu_objset_type_t type,
- boolean_t readonly, void *tag, objset_t **osp)
+ boolean_t readonly, boolean_t decrypt, const void *tag, objset_t **osp)
{
dsl_dataset_t *ds;
int err;
+ ds_hold_flags_t flags;
- err = dsl_dataset_own_obj(dp, obj, tag, &ds);
+ flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
+ err = dsl_dataset_own_obj(dp, obj, flags, tag, &ds);
if (err != 0)
return (err);
- return (dmu_objset_own_impl(ds, type, readonly, tag, osp));
+ err = dmu_objset_own_impl(ds, type, readonly, decrypt, tag, osp);
+ if (err != 0) {
+ dsl_dataset_disown(ds, flags, tag);
+ return (err);
+ }
+
+ return (0);
}
void
-dmu_objset_rele(objset_t *os, void *tag)
+dmu_objset_rele_flags(objset_t *os, boolean_t decrypt, const void *tag)
{
+ ds_hold_flags_t flags;
dsl_pool_t *dp = dmu_objset_pool(os);
- dsl_dataset_rele(os->os_dsl_dataset, tag);
+
+ flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
+ dsl_dataset_rele_flags(os->os_dsl_dataset, flags, tag);
dsl_pool_rele(dp, tag);
}
+void
+dmu_objset_rele(objset_t *os, const void *tag)
+{
+ dmu_objset_rele_flags(os, B_FALSE, tag);
+}
+
/*
* When we are called, os MUST refer to an objset associated with a dataset
* that is owned by 'tag'; that is, is held and long held by 'tag' and ds_owner
* same name so that it can be partially torn down and reconstructed.
*/
void
-dmu_objset_refresh_ownership(objset_t *os, void *tag)
+dmu_objset_refresh_ownership(dsl_dataset_t *ds, dsl_dataset_t **newds,
+ boolean_t decrypt, const void *tag)
{
dsl_pool_t *dp;
- dsl_dataset_t *ds, *newds;
char name[ZFS_MAX_DATASET_NAME_LEN];
+ ds_hold_flags_t flags;
- ds = os->os_dsl_dataset;
+ flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
VERIFY3P(ds, !=, NULL);
VERIFY3P(ds->ds_owner, ==, tag);
VERIFY(dsl_dataset_long_held(ds));
dsl_dataset_name(ds, name);
- dp = dmu_objset_pool(os);
+ dp = ds->ds_dir->dd_pool;
dsl_pool_config_enter(dp, FTAG);
- dmu_objset_disown(os, tag);
- VERIFY0(dsl_dataset_own(dp, name, tag, &newds));
- VERIFY3P(newds, ==, os->os_dsl_dataset);
+ dsl_dataset_disown(ds, flags, tag);
+ VERIFY0(dsl_dataset_own(dp, name, flags, tag, newds));
dsl_pool_config_exit(dp, FTAG);
}
void
-dmu_objset_disown(objset_t *os, void *tag)
+dmu_objset_disown(objset_t *os, boolean_t decrypt, const void *tag)
{
+ ds_hold_flags_t flags;
+
+ flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : DS_HOLD_FLAG_NONE;
/*
* Stop upgrading thread
*/
dmu_objset_upgrade_stop(os);
- dsl_dataset_disown(os->os_dsl_dataset, tag);
+ dsl_dataset_disown(os->os_dsl_dataset, flags, tag);
}
void
kmem_free(dn_marker, sizeof (dnode_t));
if (DMU_USERUSED_DNODE(os) != NULL) {
+ if (DMU_PROJECTUSED_DNODE(os) != NULL)
+ dnode_evict_dbufs(DMU_PROJECTUSED_DNODE(os));
dnode_evict_dbufs(DMU_GROUPUSED_DNODE(os));
dnode_evict_dbufs(DMU_USERUSED_DNODE(os));
}
void
dmu_objset_evict(objset_t *os)
{
- int t;
-
dsl_dataset_t *ds = os->os_dsl_dataset;
- for (t = 0; t < TXG_SIZE; t++)
+ for (int t = 0; t < TXG_SIZE; t++)
ASSERT(!dmu_objset_is_dirty(os, t));
if (ds)
} else {
mutex_exit(&os->os_lock);
}
+
+
}
void
dnode_special_close(&os->os_meta_dnode);
if (DMU_USERUSED_DNODE(os)) {
+ if (DMU_PROJECTUSED_DNODE(os))
+ dnode_special_close(&os->os_projectused_dnode);
dnode_special_close(&os->os_userused_dnode);
dnode_special_close(&os->os_groupused_dnode);
}
rw_enter(&os_lock, RW_READER);
rw_exit(&os_lock);
+ kmem_free(os->os_obj_next_percpu,
+ os->os_obj_next_percpu_len * sizeof (os->os_obj_next_percpu[0]));
+
mutex_destroy(&os->os_lock);
+ mutex_destroy(&os->os_userused_lock);
mutex_destroy(&os->os_obj_lock);
mutex_destroy(&os->os_user_ptr_lock);
+ mutex_destroy(&os->os_upgrade_lock);
+ for (int i = 0; i < TXG_SIZE; i++)
+ multilist_destroy(&os->os_dirty_dnodes[i]);
spa_evicting_os_deregister(os->os_spa, os);
kmem_free(os, sizeof (objset_t));
}
-timestruc_t
+inode_timespec_t
dmu_objset_snap_cmtime(objset_t *os)
{
return (dsl_dir_snap_cmtime(os->os_dsl_dataset->ds_dir));
}
-/* called from dsl for meta-objset */
objset_t *
-dmu_objset_create_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,
- dmu_objset_type_t type, dmu_tx_t *tx)
+dmu_objset_create_impl_dnstats(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,
+ dmu_objset_type_t type, int levels, int blksz, int ibs, dmu_tx_t *tx)
{
objset_t *os;
dnode_t *mdn;
ASSERT(dmu_tx_is_syncing(tx));
+ if (blksz == 0)
+ blksz = DNODE_BLOCK_SIZE;
+ if (ibs == 0)
+ ibs = DN_MAX_INDBLKSHIFT;
+
if (ds != NULL)
VERIFY0(dmu_objset_from_ds(ds, &os));
else
mdn = DMU_META_DNODE(os);
- dnode_allocate(mdn, DMU_OT_DNODE, DNODE_BLOCK_SIZE, DN_MAX_INDBLKSHIFT,
- DMU_OT_NONE, 0, DNODE_MIN_SLOTS, tx);
+ dnode_allocate(mdn, DMU_OT_DNODE, blksz, ibs, DMU_OT_NONE, 0,
+ DNODE_MIN_SLOTS, tx);
/*
* We don't want to have to increase the meta-dnode's nlevels
- * later, because then we could do it in quescing context while
+ * later, because then we could do it in quiescing context while
* we are also accessing it in open context.
*
* This precaution is not necessary for the MOS (ds == NULL),
* to convergence, so minimizing its dn_nlevels matters.
*/
if (ds != NULL) {
- int levels = 1;
-
- /*
- * Determine the number of levels necessary for the meta-dnode
- * to contain DN_MAX_OBJECT dnodes.
- */
- while ((uint64_t)mdn->dn_nblkptr << (mdn->dn_datablkshift +
- (levels - 1) * (mdn->dn_indblkshift - SPA_BLKPTRSHIFT)) <
- DN_MAX_OBJECT * sizeof (dnode_phys_t))
- levels++;
+ if (levels == 0) {
+ levels = 1;
+
+ /*
+ * Determine the number of levels necessary for the
+ * meta-dnode to contain DN_MAX_OBJECT dnodes. Note
+ * that in order to ensure that we do not overflow
+ * 64 bits, there has to be a nlevels that gives us a
+ * number of blocks > DN_MAX_OBJECT but < 2^64.
+ * Therefore, (mdn->dn_indblkshift - SPA_BLKPTRSHIFT)
+ * (10) must be less than (64 - log2(DN_MAX_OBJECT))
+ * (16).
+ */
+ while ((uint64_t)mdn->dn_nblkptr <<
+ (mdn->dn_datablkshift - DNODE_SHIFT + (levels - 1) *
+ (mdn->dn_indblkshift - SPA_BLKPTRSHIFT)) <
+ DN_MAX_OBJECT)
+ levels++;
+ }
mdn->dn_next_nlevels[tx->tx_txg & TXG_MASK] =
mdn->dn_nlevels = levels;
ASSERT(type != DMU_OST_ANY);
ASSERT(type < DMU_OST_NUMTYPES);
os->os_phys->os_type = type;
- if (dmu_objset_userused_enabled(os)) {
+
+ /*
+ * Enable user accounting if it is enabled and this is not an
+ * encrypted receive.
+ */
+ if (dmu_objset_userused_enabled(os) &&
+ (!os->os_encrypted || !dmu_objset_is_receiving(os))) {
os->os_phys->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE;
if (dmu_objset_userobjused_enabled(os)) {
- ds->ds_feature_activation_needed[
- SPA_FEATURE_USEROBJ_ACCOUNTING] = B_TRUE;
+ ASSERT3P(ds, !=, NULL);
+ ds->ds_feature_activation[
+ SPA_FEATURE_USEROBJ_ACCOUNTING] = (void *)B_TRUE;
os->os_phys->os_flags |=
OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE;
}
+ if (dmu_objset_projectquota_enabled(os)) {
+ ASSERT3P(ds, !=, NULL);
+ ds->ds_feature_activation[
+ SPA_FEATURE_PROJECT_QUOTA] = (void *)B_TRUE;
+ os->os_phys->os_flags |=
+ OBJSET_FLAG_PROJECTQUOTA_COMPLETE;
+ }
os->os_flags = os->os_phys->os_flags;
}
return (os);
}
+/* called from dsl for meta-objset */
+objset_t *
+dmu_objset_create_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,
+ dmu_objset_type_t type, dmu_tx_t *tx)
+{
+ return (dmu_objset_create_impl_dnstats(spa, ds, bp, type, 0, 0, 0, tx));
+}
+
typedef struct dmu_objset_create_arg {
const char *doca_name;
cred_t *doca_cred;
+ proc_t *doca_proc;
void (*doca_userfunc)(objset_t *os, void *arg,
cred_t *cr, dmu_tx_t *tx);
void *doca_userarg;
dmu_objset_type_t doca_type;
uint64_t doca_flags;
+ dsl_crypto_params_t *doca_dcp;
} dmu_objset_create_arg_t;
-/*ARGSUSED*/
static int
dmu_objset_create_check(void *arg, dmu_tx_t *tx)
{
dmu_objset_create_arg_t *doca = arg;
dsl_pool_t *dp = dmu_tx_pool(tx);
dsl_dir_t *pdd;
+ dsl_dataset_t *parentds;
+ objset_t *parentos;
const char *tail;
int error;
if (strlen(doca->doca_name) >= ZFS_MAX_DATASET_NAME_LEN)
return (SET_ERROR(ENAMETOOLONG));
+ if (dataset_nestcheck(doca->doca_name) != 0)
+ return (SET_ERROR(ENAMETOOLONG));
+
error = dsl_dir_hold(dp, doca->doca_name, FTAG, &pdd, &tail);
if (error != 0)
return (error);
dsl_dir_rele(pdd, FTAG);
return (SET_ERROR(EEXIST));
}
+
+ error = dmu_objset_create_crypt_check(pdd, doca->doca_dcp, NULL);
+ if (error != 0) {
+ dsl_dir_rele(pdd, FTAG);
+ return (error);
+ }
+
error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL,
- doca->doca_cred);
+ doca->doca_cred, doca->doca_proc);
+ if (error != 0) {
+ dsl_dir_rele(pdd, FTAG);
+ return (error);
+ }
+
+ /* can't create below anything but filesystems (eg. no ZVOLs) */
+ error = dsl_dataset_hold_obj(pdd->dd_pool,
+ dsl_dir_phys(pdd)->dd_head_dataset_obj, FTAG, &parentds);
+ if (error != 0) {
+ dsl_dir_rele(pdd, FTAG);
+ return (error);
+ }
+ error = dmu_objset_from_ds(parentds, &parentos);
+ if (error != 0) {
+ dsl_dataset_rele(parentds, FTAG);
+ dsl_dir_rele(pdd, FTAG);
+ return (error);
+ }
+ if (dmu_objset_type(parentos) != DMU_OST_ZFS) {
+ dsl_dataset_rele(parentds, FTAG);
+ dsl_dir_rele(pdd, FTAG);
+ return (SET_ERROR(ZFS_ERR_WRONG_PARENT));
+ }
+ dsl_dataset_rele(parentds, FTAG);
dsl_dir_rele(pdd, FTAG);
return (error);
{
dmu_objset_create_arg_t *doca = arg;
dsl_pool_t *dp = dmu_tx_pool(tx);
+ spa_t *spa = dp->dp_spa;
dsl_dir_t *pdd;
const char *tail;
dsl_dataset_t *ds;
uint64_t obj;
blkptr_t *bp;
objset_t *os;
+ zio_t *rzio;
VERIFY0(dsl_dir_hold(dp, doca->doca_name, FTAG, &pdd, &tail));
obj = dsl_dataset_create_sync(pdd, tail, NULL, doca->doca_flags,
- doca->doca_cred, tx);
+ doca->doca_cred, doca->doca_dcp, tx);
- VERIFY0(dsl_dataset_hold_obj(pdd->dd_pool, obj, FTAG, &ds));
+ VERIFY0(dsl_dataset_hold_obj_flags(pdd->dd_pool, obj,
+ DS_HOLD_FLAG_DECRYPT, FTAG, &ds));
+ rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
bp = dsl_dataset_get_blkptr(ds);
- os = dmu_objset_create_impl(pdd->dd_pool->dp_spa,
- ds, bp, doca->doca_type, tx);
+ os = dmu_objset_create_impl(spa, ds, bp, doca->doca_type, tx);
+ rrw_exit(&ds->ds_bp_rwlock, FTAG);
if (doca->doca_userfunc != NULL) {
doca->doca_userfunc(os, doca->doca_userarg,
doca->doca_cred, tx);
}
- spa_history_log_internal_ds(ds, "create", tx, "");
- zvol_create_minors(dp->dp_spa, doca->doca_name, B_TRUE);
+ /*
+ * The doca_userfunc() may write out some data that needs to be
+ * encrypted if the dataset is encrypted (specifically the root
+ * directory). This data must be written out before the encryption
+ * key mapping is removed by dsl_dataset_rele_flags(). Force the
+ * I/O to occur immediately by invoking the relevant sections of
+ * dsl_pool_sync().
+ */
+ if (os->os_encrypted) {
+ dsl_dataset_t *tmpds = NULL;
+ boolean_t need_sync_done = B_FALSE;
+
+ mutex_enter(&ds->ds_lock);
+ ds->ds_owner = FTAG;
+ mutex_exit(&ds->ds_lock);
+
+ rzio = zio_root(spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
+ tmpds = txg_list_remove_this(&dp->dp_dirty_datasets, ds,
+ tx->tx_txg);
+ if (tmpds != NULL) {
+ dsl_dataset_sync(ds, rzio, tx);
+ need_sync_done = B_TRUE;
+ }
+ VERIFY0(zio_wait(rzio));
- dsl_dataset_rele(ds, FTAG);
+ dmu_objset_sync_done(os, tx);
+ taskq_wait(dp->dp_sync_taskq);
+ if (txg_list_member(&dp->dp_dirty_datasets, ds, tx->tx_txg)) {
+ ASSERT3P(ds->ds_key_mapping, !=, NULL);
+ key_mapping_rele(spa, ds->ds_key_mapping, ds);
+ }
+
+ rzio = zio_root(spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
+ tmpds = txg_list_remove_this(&dp->dp_dirty_datasets, ds,
+ tx->tx_txg);
+ if (tmpds != NULL) {
+ dmu_buf_rele(ds->ds_dbuf, ds);
+ dsl_dataset_sync(ds, rzio, tx);
+ }
+ VERIFY0(zio_wait(rzio));
+
+ if (need_sync_done) {
+ ASSERT3P(ds->ds_key_mapping, !=, NULL);
+ key_mapping_rele(spa, ds->ds_key_mapping, ds);
+ dsl_dataset_sync_done(ds, tx);
+ dmu_buf_rele(ds->ds_dbuf, ds);
+ }
+
+ mutex_enter(&ds->ds_lock);
+ ds->ds_owner = NULL;
+ mutex_exit(&ds->ds_lock);
+ }
+
+ spa_history_log_internal_ds(ds, "create", tx, " ");
+
+ dsl_dataset_rele_flags(ds, DS_HOLD_FLAG_DECRYPT, FTAG);
dsl_dir_rele(pdd, FTAG);
}
int
dmu_objset_create(const char *name, dmu_objset_type_t type, uint64_t flags,
- void (*func)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx), void *arg)
+ dsl_crypto_params_t *dcp, dmu_objset_create_sync_func_t func, void *arg)
{
dmu_objset_create_arg_t doca;
+ dsl_crypto_params_t tmp_dcp = { 0 };
doca.doca_name = name;
doca.doca_cred = CRED();
+ doca.doca_proc = curproc;
doca.doca_flags = flags;
doca.doca_userfunc = func;
doca.doca_userarg = arg;
doca.doca_type = type;
- return (dsl_sync_task(name,
+ /*
+ * Some callers (mostly for testing) do not provide a dcp on their
+ * own but various code inside the sync task will require it to be
+ * allocated. Rather than adding NULL checks throughout this code
+ * or adding dummy dcp's to all of the callers we simply create a
+ * dummy one here and use that. This zero dcp will have the same
+ * effect as asking for inheritance of all encryption params.
+ */
+ doca.doca_dcp = (dcp != NULL) ? dcp : &tmp_dcp;
+
+ int rv = dsl_sync_task(name,
dmu_objset_create_check, dmu_objset_create_sync, &doca,
- 5, ZFS_SPACE_CHECK_NORMAL));
+ 6, ZFS_SPACE_CHECK_NORMAL);
+
+ if (rv == 0)
+ zvol_create_minor(name);
+ return (rv);
}
typedef struct dmu_objset_clone_arg {
const char *doca_clone;
const char *doca_origin;
cred_t *doca_cred;
+ proc_t *doca_proc;
} dmu_objset_clone_arg_t;
-/*ARGSUSED*/
static int
dmu_objset_clone_check(void *arg, dmu_tx_t *tx)
{
}
error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL,
- doca->doca_cred);
+ doca->doca_cred, doca->doca_proc);
if (error != 0) {
dsl_dir_rele(pdd, FTAG);
return (SET_ERROR(EDQUOT));
}
- dsl_dir_rele(pdd, FTAG);
error = dsl_dataset_hold(dp, doca->doca_origin, FTAG, &origin);
- if (error != 0)
+ if (error != 0) {
+ dsl_dir_rele(pdd, FTAG);
return (error);
+ }
/* You can only clone snapshots, not the head datasets. */
if (!origin->ds_is_snapshot) {
dsl_dataset_rele(origin, FTAG);
+ dsl_dir_rele(pdd, FTAG);
return (SET_ERROR(EINVAL));
}
+
dsl_dataset_rele(origin, FTAG);
+ dsl_dir_rele(pdd, FTAG);
return (0);
}
VERIFY0(dsl_dataset_hold(dp, doca->doca_origin, FTAG, &origin));
obj = dsl_dataset_create_sync(pdd, tail, origin, 0,
- doca->doca_cred, tx);
+ doca->doca_cred, NULL, tx);
VERIFY0(dsl_dataset_hold_obj(pdd->dd_pool, obj, FTAG, &ds));
dsl_dataset_name(origin, namebuf);
spa_history_log_internal_ds(ds, "clone", tx,
- "origin=%s (%llu)", namebuf, origin->ds_object);
- zvol_create_minors(dp->dp_spa, doca->doca_clone, B_TRUE);
+ "origin=%s (%llu)", namebuf, (u_longlong_t)origin->ds_object);
dsl_dataset_rele(ds, FTAG);
dsl_dataset_rele(origin, FTAG);
dsl_dir_rele(pdd, FTAG);
doca.doca_clone = clone;
doca.doca_origin = origin;
doca.doca_cred = CRED();
+ doca.doca_proc = curproc;
- return (dsl_sync_task(clone,
+ int rv = dsl_sync_task(clone,
dmu_objset_clone_check, dmu_objset_clone_sync, &doca,
- 5, ZFS_SPACE_CHECK_NORMAL));
+ 6, ZFS_SPACE_CHECK_NORMAL);
+
+ if (rv == 0)
+ zvol_create_minor(clone);
+
+ return (rv);
}
int
nvlist_t *snaps = fnvlist_alloc();
fnvlist_add_boolean(snaps, longsnap);
- strfree(longsnap);
+ kmem_strfree(longsnap);
err = dsl_dataset_snapshot(snaps, NULL, NULL);
fnvlist_free(snaps);
return (err);
mutex_enter(&os->os_upgrade_lock);
os->os_upgrade_status = EINTR;
if (!os->os_upgrade_exit) {
+ int status;
+
mutex_exit(&os->os_upgrade_lock);
- os->os_upgrade_status = os->os_upgrade_cb(os);
+ status = os->os_upgrade_cb(os);
+
mutex_enter(&os->os_upgrade_lock);
+
+ os->os_upgrade_status = status;
}
os->os_upgrade_exit = B_TRUE;
os->os_upgrade_id = 0;
mutex_exit(&os->os_upgrade_lock);
+ dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag);
}
static void
if (os->os_upgrade_id != 0)
return;
+ ASSERT(dsl_pool_config_held(dmu_objset_pool(os)));
+ dsl_dataset_long_hold(dmu_objset_ds(os), upgrade_tag);
+
mutex_enter(&os->os_upgrade_lock);
if (os->os_upgrade_id == 0 && os->os_upgrade_status == 0) {
os->os_upgrade_exit = B_FALSE;
os->os_upgrade_id = taskq_dispatch(
os->os_spa->spa_upgrade_taskq,
dmu_objset_upgrade_task_cb, os, TQ_SLEEP);
- if (os->os_upgrade_id == 0)
+ if (os->os_upgrade_id == TASKQID_INVALID) {
+ dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag);
os->os_upgrade_status = ENOMEM;
+ }
+ } else {
+ dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag);
}
mutex_exit(&os->os_upgrade_lock);
}
os->os_upgrade_id = 0;
mutex_exit(&os->os_upgrade_lock);
- taskq_cancel_id(os->os_spa->spa_upgrade_taskq, id);
+ if ((taskq_cancel_id(os->os_spa->spa_upgrade_taskq, id)) == 0) {
+ dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag);
+ }
+ txg_wait_synced(os->os_spa->spa_dsl_pool, 0);
} else {
mutex_exit(&os->os_upgrade_lock);
}
}
static void
-dmu_objset_sync_dnodes(list_t *list, list_t *newlist, dmu_tx_t *tx)
+dmu_objset_sync_dnodes(multilist_sublist_t *list, dmu_tx_t *tx)
{
dnode_t *dn;
- while ((dn = list_head(list))) {
+ while ((dn = multilist_sublist_head(list)) != NULL) {
ASSERT(dn->dn_object != DMU_META_DNODE_OBJECT);
ASSERT(dn->dn_dbuf->db_data_pending);
/*
* Initialize dn_zio outside dnode_sync() because the
- * meta-dnode needs to set it ouside dnode_sync().
+ * meta-dnode needs to set it outside dnode_sync().
*/
dn->dn_zio = dn->dn_dbuf->db_data_pending->dr_zio;
ASSERT(dn->dn_zio);
ASSERT3U(dn->dn_nlevels, <=, DN_MAX_LEVELS);
- list_remove(list, dn);
+ multilist_sublist_remove(list, dn);
- if (newlist) {
- (void) dnode_add_ref(dn, newlist);
- list_insert_tail(newlist, dn);
- }
+ /*
+ * See the comment above dnode_rele_task() for an explanation
+ * of why this dnode hold is always needed (even when not
+ * doing user accounting).
+ */
+ multilist_t *newlist = &dn->dn_objset->os_synced_dnodes;
+ (void) dnode_add_ref(dn, newlist);
+ multilist_insert(newlist, dn);
dnode_sync(dn, tx);
}
}
-/* ARGSUSED */
static void
dmu_objset_write_ready(zio_t *zio, arc_buf_t *abuf, void *arg)
{
- int i;
-
+ (void) abuf;
blkptr_t *bp = zio->io_bp;
objset_t *os = arg;
dnode_phys_t *dnp = &os->os_phys->os_meta_dnode;
+ uint64_t fill = 0;
ASSERT(!BP_IS_EMBEDDED(bp));
- ASSERT3P(bp, ==, os->os_rootbp);
ASSERT3U(BP_GET_TYPE(bp), ==, DMU_OT_OBJSET);
ASSERT0(BP_GET_LEVEL(bp));
* Update rootbp fill count: it should be the number of objects
* allocated in the object set (not counting the "special"
* objects that are stored in the objset_phys_t -- the meta
- * dnode and user/group accounting objects).
+ * dnode and user/group/project accounting objects).
*/
- bp->blk_fill = 0;
- for (i = 0; i < dnp->dn_nblkptr; i++)
- bp->blk_fill += BP_GET_FILL(&dnp->dn_blkptr[i]);
+ for (int i = 0; i < dnp->dn_nblkptr; i++)
+ fill += BP_GET_FILL(&dnp->dn_blkptr[i]);
+
+ BP_SET_FILL(bp, fill);
+
+ if (os->os_dsl_dataset != NULL)
+ rrw_enter(&os->os_dsl_dataset->ds_bp_rwlock, RW_WRITER, FTAG);
+ *os->os_rootbp = *bp;
+ if (os->os_dsl_dataset != NULL)
+ rrw_exit(&os->os_dsl_dataset->ds_bp_rwlock, FTAG);
}
-/* ARGSUSED */
static void
dmu_objset_write_done(zio_t *zio, arc_buf_t *abuf, void *arg)
{
+ (void) abuf;
blkptr_t *bp = zio->io_bp;
blkptr_t *bp_orig = &zio->io_bp_orig;
objset_t *os = arg;
(void) dsl_dataset_block_kill(ds, bp_orig, tx, B_TRUE);
dsl_dataset_block_born(ds, bp, tx);
}
+ kmem_free(bp, sizeof (*bp));
+}
+
+typedef struct sync_objset_arg {
+ zio_t *soa_zio;
+ objset_t *soa_os;
+ dmu_tx_t *soa_tx;
+ kmutex_t soa_mutex;
+ int soa_count;
+ taskq_ent_t soa_tq_ent;
+} sync_objset_arg_t;
+
+typedef struct sync_dnodes_arg {
+ multilist_t *sda_list;
+ int sda_sublist_idx;
+ multilist_t *sda_newlist;
+ sync_objset_arg_t *sda_soa;
+} sync_dnodes_arg_t;
+
+static void sync_meta_dnode_task(void *arg);
+
+static void
+sync_dnodes_task(void *arg)
+{
+ sync_dnodes_arg_t *sda = arg;
+ sync_objset_arg_t *soa = sda->sda_soa;
+ objset_t *os = soa->soa_os;
+
+ multilist_sublist_t *ms =
+ multilist_sublist_lock(sda->sda_list, sda->sda_sublist_idx);
+
+ dmu_objset_sync_dnodes(ms, soa->soa_tx);
+
+ multilist_sublist_unlock(ms);
+
+ kmem_free(sda, sizeof (*sda));
+
+ mutex_enter(&soa->soa_mutex);
+ ASSERT(soa->soa_count != 0);
+ if (--soa->soa_count != 0) {
+ mutex_exit(&soa->soa_mutex);
+ return;
+ }
+ mutex_exit(&soa->soa_mutex);
+
+ taskq_dispatch_ent(dmu_objset_pool(os)->dp_sync_taskq,
+ sync_meta_dnode_task, soa, TQ_FRONT, &soa->soa_tq_ent);
+}
+
+/*
+ * Issue the zio_nowait() for all dirty record zios on the meta dnode,
+ * then trigger the callback for the zil_sync. This runs once for each
+ * objset, only after any/all sublists in the objset have been synced.
+ */
+static void
+sync_meta_dnode_task(void *arg)
+{
+ sync_objset_arg_t *soa = arg;
+ objset_t *os = soa->soa_os;
+ dmu_tx_t *tx = soa->soa_tx;
+ int txgoff = tx->tx_txg & TXG_MASK;
+ dbuf_dirty_record_t *dr;
+
+ ASSERT0(soa->soa_count);
+
+ list_t *list = &DMU_META_DNODE(os)->dn_dirty_records[txgoff];
+ while ((dr = list_remove_head(list)) != NULL) {
+ ASSERT0(dr->dr_dbuf->db_level);
+ zio_nowait(dr->dr_zio);
+ }
+
+ /* Enable dnode backfill if enough objects have been freed. */
+ if (os->os_freed_dnodes >= dmu_rescan_dnode_threshold) {
+ os->os_rescan_dnodes = B_TRUE;
+ os->os_freed_dnodes = 0;
+ }
+
+ /*
+ * Free intent log blocks up to this tx.
+ */
+ zil_sync(os->os_zil, tx);
+ os->os_phys->os_zil_header = os->os_zil_header;
+ zio_nowait(soa->soa_zio);
+
+ mutex_destroy(&soa->soa_mutex);
+ kmem_free(soa, sizeof (*soa));
}
/* called from dsl */
zbookmark_phys_t zb;
zio_prop_t zp;
zio_t *zio;
- list_t *list;
- list_t *newlist = NULL;
- dbuf_dirty_record_t *dr;
+ int num_sublists;
+ multilist_t *ml;
+ blkptr_t *blkptr_copy = kmem_alloc(sizeof (*os->os_rootbp), KM_SLEEP);
+ *blkptr_copy = *os->os_rootbp;
- dprintf_ds(os->os_dsl_dataset, "txg=%llu\n", tx->tx_txg);
+ dprintf_ds(os->os_dsl_dataset, "txg=%llu\n", (u_longlong_t)tx->tx_txg);
ASSERT(dmu_tx_is_syncing(tx));
/* XXX the write_done callback should really give us the tx... */
ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID);
arc_release(os->os_phys_buf, &os->os_phys_buf);
- dmu_write_policy(os, NULL, 0, 0, ZIO_COMPRESS_INHERIT, &zp);
+ dmu_write_policy(os, NULL, 0, 0, &zp);
+
+ /*
+ * If we are either claiming the ZIL or doing a raw receive, write
+ * out the os_phys_buf raw. Neither of these actions will effect the
+ * MAC at this point.
+ */
+ if (os->os_raw_receive ||
+ os->os_next_write_raw[tx->tx_txg & TXG_MASK]) {
+ ASSERT(os->os_encrypted);
+ arc_convert_to_raw(os->os_phys_buf,
+ os->os_dsl_dataset->ds_object, ZFS_HOST_BYTEORDER,
+ DMU_OT_OBJSET, NULL, NULL, NULL);
+ }
zio = arc_write(pio, os->os_spa, tx->tx_txg,
- os->os_rootbp, os->os_phys_buf, DMU_OS_IS_L2CACHEABLE(os),
- &zp, dmu_objset_write_ready, NULL, NULL, dmu_objset_write_done,
+ blkptr_copy, os->os_phys_buf, B_FALSE, dmu_os_is_l2cacheable(os),
+ &zp, dmu_objset_write_ready, NULL, dmu_objset_write_done,
os, ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb);
/*
dnode_sync(DMU_GROUPUSED_DNODE(os), tx);
}
+ if (DMU_PROJECTUSED_DNODE(os) &&
+ DMU_PROJECTUSED_DNODE(os)->dn_type != DMU_OT_NONE) {
+ DMU_PROJECTUSED_DNODE(os)->dn_zio = zio;
+ dnode_sync(DMU_PROJECTUSED_DNODE(os), tx);
+ }
+
txgoff = tx->tx_txg & TXG_MASK;
- if (dmu_objset_userused_enabled(os)) {
- newlist = &os->os_synced_dnodes;
- /*
- * We must create the list here because it uses the
- * dn_dirty_link[] of this txg.
- */
- list_create(newlist, sizeof (dnode_t),
+ /*
+ * We must create the list here because it uses the
+ * dn_dirty_link[] of this txg. But it may already
+ * exist because we call dsl_dataset_sync() twice per txg.
+ */
+ if (os->os_synced_dnodes.ml_sublists == NULL) {
+ multilist_create(&os->os_synced_dnodes, sizeof (dnode_t),
+ offsetof(dnode_t, dn_dirty_link[txgoff]),
+ dnode_multilist_index_func);
+ } else {
+ ASSERT3U(os->os_synced_dnodes.ml_offset, ==,
offsetof(dnode_t, dn_dirty_link[txgoff]));
}
- dmu_objset_sync_dnodes(&os->os_free_dnodes[txgoff], newlist, tx);
- dmu_objset_sync_dnodes(&os->os_dirty_dnodes[txgoff], newlist, tx);
-
- list = &DMU_META_DNODE(os)->dn_dirty_records[txgoff];
- while ((dr = list_head(list))) {
- ASSERT0(dr->dr_dbuf->db_level);
- list_remove(list, dr);
- if (dr->dr_zio)
- zio_nowait(dr->dr_zio);
+ /*
+ * zio_nowait(zio) is done after any/all sublist and meta dnode
+ * zios have been nowaited, and the zil_sync() has been performed.
+ * The soa is freed at the end of sync_meta_dnode_task.
+ */
+ sync_objset_arg_t *soa = kmem_alloc(sizeof (*soa), KM_SLEEP);
+ soa->soa_zio = zio;
+ soa->soa_os = os;
+ soa->soa_tx = tx;
+ taskq_init_ent(&soa->soa_tq_ent);
+ mutex_init(&soa->soa_mutex, NULL, MUTEX_DEFAULT, NULL);
+
+ ml = &os->os_dirty_dnodes[txgoff];
+ soa->soa_count = num_sublists = multilist_get_num_sublists(ml);
+
+ for (int i = 0; i < num_sublists; i++) {
+ if (multilist_sublist_is_empty_idx(ml, i))
+ soa->soa_count--;
}
- /* Enable dnode backfill if enough objects have been freed. */
- if (os->os_freed_dnodes >= dmu_rescan_dnode_threshold) {
- os->os_rescan_dnodes = B_TRUE;
- os->os_freed_dnodes = 0;
+ if (soa->soa_count == 0) {
+ taskq_dispatch_ent(dmu_objset_pool(os)->dp_sync_taskq,
+ sync_meta_dnode_task, soa, TQ_FRONT, &soa->soa_tq_ent);
+ } else {
+ /*
+ * Sync sublists in parallel. The last to finish
+ * (i.e., when soa->soa_count reaches zero) must
+ * dispatch sync_meta_dnode_task.
+ */
+ for (int i = 0; i < num_sublists; i++) {
+ if (multilist_sublist_is_empty_idx(ml, i))
+ continue;
+ sync_dnodes_arg_t *sda =
+ kmem_alloc(sizeof (*sda), KM_SLEEP);
+ sda->sda_list = ml;
+ sda->sda_sublist_idx = i;
+ sda->sda_soa = soa;
+ (void) taskq_dispatch(
+ dmu_objset_pool(os)->dp_sync_taskq,
+ sync_dnodes_task, sda, 0);
+ /* sync_dnodes_task frees sda */
+ }
}
-
- /*
- * Free intent log blocks up to this tx.
- */
- zil_sync(os->os_zil, tx);
- os->os_phys->os_zil_header = os->os_zil_header;
- zio_nowait(zio);
}
boolean_t
dmu_objset_is_dirty(objset_t *os, uint64_t txg)
{
- return (!list_is_empty(&os->os_dirty_dnodes[txg & TXG_MASK]) ||
- !list_is_empty(&os->os_free_dnodes[txg & TXG_MASK]));
+ return (!multilist_is_empty(&os->os_dirty_dnodes[txg & TXG_MASK]));
}
-static objset_used_cb_t *used_cbs[DMU_OST_NUMTYPES];
+static file_info_cb_t *file_cbs[DMU_OST_NUMTYPES];
void
-dmu_objset_register_type(dmu_objset_type_t ost, objset_used_cb_t *cb)
+dmu_objset_register_type(dmu_objset_type_t ost, file_info_cb_t *cb)
+{
+ file_cbs[ost] = cb;
+}
+
+int
+dmu_get_file_info(objset_t *os, dmu_object_type_t bonustype, const void *data,
+ zfs_file_info_t *zfi)
{
- used_cbs[ost] = cb;
+ file_info_cb_t *cb = file_cbs[os->os_phys->os_type];
+ if (cb == NULL)
+ return (EINVAL);
+ return (cb(bonustype, data, zfi));
}
boolean_t
dmu_objset_userused_enabled(objset_t *os)
{
return (spa_version(os->os_spa) >= SPA_VERSION_USERSPACE &&
- used_cbs[os->os_phys->os_type] != NULL &&
+ file_cbs[os->os_phys->os_type] != NULL &&
DMU_USERUSED_DNODE(os) != NULL);
}
spa_feature_is_enabled(os->os_spa, SPA_FEATURE_USEROBJ_ACCOUNTING));
}
+boolean_t
+dmu_objset_projectquota_enabled(objset_t *os)
+{
+ return (file_cbs[os->os_phys->os_type] != NULL &&
+ DMU_PROJECTUSED_DNODE(os) != NULL &&
+ spa_feature_is_enabled(os->os_spa, SPA_FEATURE_PROJECT_QUOTA));
+}
+
+typedef struct userquota_node {
+ /* must be in the first filed, see userquota_update_cache() */
+ char uqn_id[20 + DMU_OBJACCT_PREFIX_LEN];
+ int64_t uqn_delta;
+ avl_node_t uqn_node;
+} userquota_node_t;
+
+typedef struct userquota_cache {
+ avl_tree_t uqc_user_deltas;
+ avl_tree_t uqc_group_deltas;
+ avl_tree_t uqc_project_deltas;
+} userquota_cache_t;
+
+static int
+userquota_compare(const void *l, const void *r)
+{
+ const userquota_node_t *luqn = l;
+ const userquota_node_t *ruqn = r;
+ int rv;
+
+ /*
+ * NB: can only access uqn_id because userquota_update_cache() doesn't
+ * pass in an entire userquota_node_t.
+ */
+ rv = strcmp(luqn->uqn_id, ruqn->uqn_id);
+
+ return (TREE_ISIGN(rv));
+}
+
static void
-do_userquota_update(objset_t *os, uint64_t used, uint64_t flags,
- uint64_t user, uint64_t group, boolean_t subtract, dmu_tx_t *tx)
+do_userquota_cacheflush(objset_t *os, userquota_cache_t *cache, dmu_tx_t *tx)
{
- if ((flags & DNODE_FLAG_USERUSED_ACCOUNTED)) {
+ void *cookie;
+ userquota_node_t *uqn;
+
+ ASSERT(dmu_tx_is_syncing(tx));
+
+ cookie = NULL;
+ while ((uqn = avl_destroy_nodes(&cache->uqc_user_deltas,
+ &cookie)) != NULL) {
+ /*
+ * os_userused_lock protects against concurrent calls to
+ * zap_increment_int(). It's needed because zap_increment_int()
+ * is not thread-safe (i.e. not atomic).
+ */
+ mutex_enter(&os->os_userused_lock);
+ VERIFY0(zap_increment(os, DMU_USERUSED_OBJECT,
+ uqn->uqn_id, uqn->uqn_delta, tx));
+ mutex_exit(&os->os_userused_lock);
+ kmem_free(uqn, sizeof (*uqn));
+ }
+ avl_destroy(&cache->uqc_user_deltas);
+
+ cookie = NULL;
+ while ((uqn = avl_destroy_nodes(&cache->uqc_group_deltas,
+ &cookie)) != NULL) {
+ mutex_enter(&os->os_userused_lock);
+ VERIFY0(zap_increment(os, DMU_GROUPUSED_OBJECT,
+ uqn->uqn_id, uqn->uqn_delta, tx));
+ mutex_exit(&os->os_userused_lock);
+ kmem_free(uqn, sizeof (*uqn));
+ }
+ avl_destroy(&cache->uqc_group_deltas);
+
+ if (dmu_objset_projectquota_enabled(os)) {
+ cookie = NULL;
+ while ((uqn = avl_destroy_nodes(&cache->uqc_project_deltas,
+ &cookie)) != NULL) {
+ mutex_enter(&os->os_userused_lock);
+ VERIFY0(zap_increment(os, DMU_PROJECTUSED_OBJECT,
+ uqn->uqn_id, uqn->uqn_delta, tx));
+ mutex_exit(&os->os_userused_lock);
+ kmem_free(uqn, sizeof (*uqn));
+ }
+ avl_destroy(&cache->uqc_project_deltas);
+ }
+}
+
+static void
+userquota_update_cache(avl_tree_t *avl, const char *id, int64_t delta)
+{
+ userquota_node_t *uqn;
+ avl_index_t idx;
+
+ ASSERT(strlen(id) < sizeof (uqn->uqn_id));
+ /*
+ * Use id directly for searching because uqn_id is the first field of
+ * userquota_node_t and fields after uqn_id won't be accessed in
+ * avl_find().
+ */
+ uqn = avl_find(avl, (const void *)id, &idx);
+ if (uqn == NULL) {
+ uqn = kmem_zalloc(sizeof (*uqn), KM_SLEEP);
+ strlcpy(uqn->uqn_id, id, sizeof (uqn->uqn_id));
+ avl_insert(avl, uqn, idx);
+ }
+ uqn->uqn_delta += delta;
+}
+
+static void
+do_userquota_update(objset_t *os, userquota_cache_t *cache, uint64_t used,
+ uint64_t flags, uint64_t user, uint64_t group, uint64_t project,
+ boolean_t subtract)
+{
+ if (flags & DNODE_FLAG_USERUSED_ACCOUNTED) {
int64_t delta = DNODE_MIN_SIZE + used;
+ char name[20];
+
if (subtract)
delta = -delta;
- VERIFY3U(0, ==, zap_increment_int(os, DMU_USERUSED_OBJECT,
- user, delta, tx));
- VERIFY3U(0, ==, zap_increment_int(os, DMU_GROUPUSED_OBJECT,
- group, delta, tx));
+
+ (void) snprintf(name, sizeof (name), "%llx", (longlong_t)user);
+ userquota_update_cache(&cache->uqc_user_deltas, name, delta);
+
+ (void) snprintf(name, sizeof (name), "%llx", (longlong_t)group);
+ userquota_update_cache(&cache->uqc_group_deltas, name, delta);
+
+ if (dmu_objset_projectquota_enabled(os)) {
+ (void) snprintf(name, sizeof (name), "%llx",
+ (longlong_t)project);
+ userquota_update_cache(&cache->uqc_project_deltas,
+ name, delta);
+ }
}
}
static void
-do_userobjquota_update(objset_t *os, uint64_t flags, uint64_t user,
- uint64_t group, boolean_t subtract, dmu_tx_t *tx)
+do_userobjquota_update(objset_t *os, userquota_cache_t *cache, uint64_t flags,
+ uint64_t user, uint64_t group, uint64_t project, boolean_t subtract)
{
if (flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) {
char name[20 + DMU_OBJACCT_PREFIX_LEN];
+ int delta = subtract ? -1 : 1;
(void) snprintf(name, sizeof (name), DMU_OBJACCT_PREFIX "%llx",
(longlong_t)user);
- VERIFY0(zap_increment(os, DMU_USERUSED_OBJECT, name,
- subtract ? -1 : 1, tx));
+ userquota_update_cache(&cache->uqc_user_deltas, name, delta);
(void) snprintf(name, sizeof (name), DMU_OBJACCT_PREFIX "%llx",
(longlong_t)group);
- VERIFY0(zap_increment(os, DMU_GROUPUSED_OBJECT, name,
- subtract ? -1 : 1, tx));
+ userquota_update_cache(&cache->uqc_group_deltas, name, delta);
+
+ if (dmu_objset_projectquota_enabled(os)) {
+ (void) snprintf(name, sizeof (name),
+ DMU_OBJACCT_PREFIX "%llx", (longlong_t)project);
+ userquota_update_cache(&cache->uqc_project_deltas,
+ name, delta);
+ }
}
}
-void
-dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx)
+typedef struct userquota_updates_arg {
+ objset_t *uua_os;
+ int uua_sublist_idx;
+ dmu_tx_t *uua_tx;
+} userquota_updates_arg_t;
+
+static void
+userquota_updates_task(void *arg)
{
+ userquota_updates_arg_t *uua = arg;
+ objset_t *os = uua->uua_os;
+ dmu_tx_t *tx = uua->uua_tx;
dnode_t *dn;
- list_t *list = &os->os_synced_dnodes;
-
- ASSERT(list_head(list) == NULL || dmu_objset_userused_enabled(os));
-
- while ((dn = list_head(list))) {
+ userquota_cache_t cache = { { 0 } };
+
+ multilist_sublist_t *list =
+ multilist_sublist_lock(&os->os_synced_dnodes, uua->uua_sublist_idx);
+
+ ASSERT(multilist_sublist_head(list) == NULL ||
+ dmu_objset_userused_enabled(os));
+ avl_create(&cache.uqc_user_deltas, userquota_compare,
+ sizeof (userquota_node_t), offsetof(userquota_node_t, uqn_node));
+ avl_create(&cache.uqc_group_deltas, userquota_compare,
+ sizeof (userquota_node_t), offsetof(userquota_node_t, uqn_node));
+ if (dmu_objset_projectquota_enabled(os))
+ avl_create(&cache.uqc_project_deltas, userquota_compare,
+ sizeof (userquota_node_t), offsetof(userquota_node_t,
+ uqn_node));
+
+ while ((dn = multilist_sublist_head(list)) != NULL) {
int flags;
ASSERT(!DMU_OBJECT_IS_SPECIAL(dn->dn_object));
ASSERT(dn->dn_phys->dn_type == DMU_OT_NONE ||
dn->dn_phys->dn_flags &
DNODE_FLAG_USERUSED_ACCOUNTED);
- /* Allocate the user/groupused objects if necessary. */
- if (DMU_USERUSED_DNODE(os)->dn_type == DMU_OT_NONE) {
- VERIFY(0 == zap_create_claim(os,
- DMU_USERUSED_OBJECT,
- DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx));
- VERIFY(0 == zap_create_claim(os,
- DMU_GROUPUSED_OBJECT,
- DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx));
- }
-
- /*
- * We intentionally modify the zap object even if the
- * net delta is zero. Otherwise
- * the block of the zap obj could be shared between
- * datasets but need to be different between them after
- * a bprewrite.
- */
-
flags = dn->dn_id_flags;
ASSERT(flags);
if (flags & DN_ID_OLD_EXIST) {
- do_userquota_update(os, dn->dn_oldused, dn->dn_oldflags,
- dn->dn_olduid, dn->dn_oldgid, B_TRUE, tx);
- do_userobjquota_update(os, dn->dn_oldflags,
- dn->dn_olduid, dn->dn_oldgid, B_TRUE, tx);
+ do_userquota_update(os, &cache, dn->dn_oldused,
+ dn->dn_oldflags, dn->dn_olduid, dn->dn_oldgid,
+ dn->dn_oldprojid, B_TRUE);
+ do_userobjquota_update(os, &cache, dn->dn_oldflags,
+ dn->dn_olduid, dn->dn_oldgid,
+ dn->dn_oldprojid, B_TRUE);
}
if (flags & DN_ID_NEW_EXIST) {
- do_userquota_update(os, DN_USED_BYTES(dn->dn_phys),
- dn->dn_phys->dn_flags, dn->dn_newuid,
- dn->dn_newgid, B_FALSE, tx);
- do_userobjquota_update(os, dn->dn_phys->dn_flags,
- dn->dn_newuid, dn->dn_newgid, B_FALSE, tx);
+ do_userquota_update(os, &cache,
+ DN_USED_BYTES(dn->dn_phys), dn->dn_phys->dn_flags,
+ dn->dn_newuid, dn->dn_newgid,
+ dn->dn_newprojid, B_FALSE);
+ do_userobjquota_update(os, &cache,
+ dn->dn_phys->dn_flags, dn->dn_newuid, dn->dn_newgid,
+ dn->dn_newprojid, B_FALSE);
}
mutex_enter(&dn->dn_mtx);
if (dn->dn_id_flags & DN_ID_NEW_EXIST) {
dn->dn_olduid = dn->dn_newuid;
dn->dn_oldgid = dn->dn_newgid;
+ dn->dn_oldprojid = dn->dn_newprojid;
dn->dn_id_flags |= DN_ID_OLD_EXIST;
if (dn->dn_bonuslen == 0)
dn->dn_id_flags |= DN_ID_CHKED_SPILL;
dn->dn_id_flags &= ~(DN_ID_NEW_EXIST);
mutex_exit(&dn->dn_mtx);
- list_remove(list, dn);
- dnode_rele(dn, list);
+ multilist_sublist_remove(list, dn);
+ dnode_rele(dn, &os->os_synced_dnodes);
+ }
+ do_userquota_cacheflush(os, &cache, tx);
+ multilist_sublist_unlock(list);
+ kmem_free(uua, sizeof (*uua));
+}
+
+/*
+ * Release dnode holds from dmu_objset_sync_dnodes(). When the dnode is being
+ * synced (i.e. we have issued the zio's for blocks in the dnode), it can't be
+ * evicted because the block containing the dnode can't be evicted until it is
+ * written out. However, this hold is necessary to prevent the dnode_t from
+ * being moved (via dnode_move()) while it's still referenced by
+ * dbuf_dirty_record_t:dr_dnode. And dr_dnode is needed for
+ * dirty_lightweight_leaf-type dirty records.
+ *
+ * If we are doing user-object accounting, the dnode_rele() happens from
+ * userquota_updates_task() instead.
+ */
+static void
+dnode_rele_task(void *arg)
+{
+ userquota_updates_arg_t *uua = arg;
+ objset_t *os = uua->uua_os;
+
+ multilist_sublist_t *list =
+ multilist_sublist_lock(&os->os_synced_dnodes, uua->uua_sublist_idx);
+
+ dnode_t *dn;
+ while ((dn = multilist_sublist_head(list)) != NULL) {
+ multilist_sublist_remove(list, dn);
+ dnode_rele(dn, &os->os_synced_dnodes);
+ }
+ multilist_sublist_unlock(list);
+ kmem_free(uua, sizeof (*uua));
+}
+
+/*
+ * Return TRUE if userquota updates are needed.
+ */
+static boolean_t
+dmu_objset_do_userquota_updates_prep(objset_t *os, dmu_tx_t *tx)
+{
+ if (!dmu_objset_userused_enabled(os))
+ return (B_FALSE);
+
+ /*
+ * If this is a raw receive just return and handle accounting
+ * later when we have the keys loaded. We also don't do user
+ * accounting during claiming since the datasets are not owned
+ * for the duration of claiming and this txg should only be
+ * used for recovery.
+ */
+ if (os->os_encrypted && dmu_objset_is_receiving(os))
+ return (B_FALSE);
+
+ if (tx->tx_txg <= os->os_spa->spa_claim_max_txg)
+ return (B_FALSE);
+
+ /* Allocate the user/group/project used objects if necessary. */
+ if (DMU_USERUSED_DNODE(os)->dn_type == DMU_OT_NONE) {
+ VERIFY0(zap_create_claim(os,
+ DMU_USERUSED_OBJECT,
+ DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx));
+ VERIFY0(zap_create_claim(os,
+ DMU_GROUPUSED_OBJECT,
+ DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx));
}
+
+ if (dmu_objset_projectquota_enabled(os) &&
+ DMU_PROJECTUSED_DNODE(os)->dn_type == DMU_OT_NONE) {
+ VERIFY0(zap_create_claim(os, DMU_PROJECTUSED_OBJECT,
+ DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx));
+ }
+ return (B_TRUE);
}
+/*
+ * Dispatch taskq tasks to dp_sync_taskq to update the user accounting, and
+ * also release the holds on the dnodes from dmu_objset_sync_dnodes().
+ * The caller must taskq_wait(dp_sync_taskq).
+ */
+void
+dmu_objset_sync_done(objset_t *os, dmu_tx_t *tx)
+{
+ boolean_t need_userquota = dmu_objset_do_userquota_updates_prep(os, tx);
+
+ int num_sublists = multilist_get_num_sublists(&os->os_synced_dnodes);
+ for (int i = 0; i < num_sublists; i++) {
+ userquota_updates_arg_t *uua =
+ kmem_alloc(sizeof (*uua), KM_SLEEP);
+ uua->uua_os = os;
+ uua->uua_sublist_idx = i;
+ uua->uua_tx = tx;
+
+ /*
+ * If we don't need to update userquotas, use
+ * dnode_rele_task() to call dnode_rele()
+ */
+ (void) taskq_dispatch(dmu_objset_pool(os)->dp_sync_taskq,
+ need_userquota ? userquota_updates_task : dnode_rele_task,
+ uua, 0);
+ /* callback frees uua */
+ }
+}
+
+
/*
* Returns a pointer to data to find uid/gid from
*
static void *
dmu_objset_userquota_find_data(dmu_buf_impl_t *db, dmu_tx_t *tx)
{
- dbuf_dirty_record_t *dr, **drp;
+ dbuf_dirty_record_t *dr;
void *data;
if (db->db_dirtycnt == 0)
return (db->db.db_data); /* Nothing is changing */
- for (drp = &db->db_last_dirty; (dr = *drp) != NULL; drp = &dr->dr_next)
- if (dr->dr_txg == tx->tx_txg)
- break;
+ dr = dbuf_find_dirty_eq(db, tx->tx_txg);
if (dr == NULL) {
data = NULL;
} else {
- dnode_t *dn;
-
- DB_DNODE_ENTER(dr->dr_dbuf);
- dn = DB_DNODE(dr->dr_dbuf);
-
- if (dn->dn_bonuslen == 0 &&
+ if (dr->dr_dnode->dn_bonuslen == 0 &&
dr->dr_dbuf->db_blkid == DMU_SPILL_BLKID)
data = dr->dt.dl.dr_data->b_data;
else
data = dr->dt.dl.dr_data;
-
- DB_DNODE_EXIT(dr->dr_dbuf);
}
return (data);
objset_t *os = dn->dn_objset;
void *data = NULL;
dmu_buf_impl_t *db = NULL;
- uint64_t *user = NULL;
- uint64_t *group = NULL;
int flags = dn->dn_id_flags;
int error;
boolean_t have_spill = B_FALSE;
if (!dmu_objset_userused_enabled(dn->dn_objset))
return;
+ /*
+ * Raw receives introduce a problem with user accounting. Raw
+ * receives cannot update the user accounting info because the
+ * user ids and the sizes are encrypted. To guarantee that we
+ * never end up with bad user accounting, we simply disable it
+ * during raw receives. We also disable this for normal receives
+ * so that an incremental raw receive may be done on top of an
+ * existing non-raw receive.
+ */
+ if (os->os_encrypted && dmu_objset_is_receiving(os))
+ return;
+
if (before && (flags & (DN_ID_CHKED_BONUS|DN_ID_OLD_EXIST|
DN_ID_CHKED_SPILL)))
return;
return;
}
- if (before) {
- ASSERT(data);
- user = &dn->dn_olduid;
- group = &dn->dn_oldgid;
- } else if (data) {
- user = &dn->dn_newuid;
- group = &dn->dn_newgid;
- }
-
/*
* Must always call the callback in case the object
* type has changed and that type isn't an object type to track
*/
- error = used_cbs[os->os_phys->os_type](dn->dn_bonustype, data,
- user, group);
+ zfs_file_info_t zfi;
+ error = file_cbs[os->os_phys->os_type](dn->dn_bonustype, data, &zfi);
+
+ if (before) {
+ ASSERT(data);
+ dn->dn_olduid = zfi.zfi_user;
+ dn->dn_oldgid = zfi.zfi_group;
+ dn->dn_oldprojid = zfi.zfi_project;
+ } else if (data) {
+ dn->dn_newuid = zfi.zfi_user;
+ dn->dn_newgid = zfi.zfi_group;
+ dn->dn_newprojid = zfi.zfi_project;
+ }
/*
* Preserve existing uid/gid when the callback can't determine
if (flags & DN_ID_OLD_EXIST) {
dn->dn_newuid = dn->dn_olduid;
dn->dn_newgid = dn->dn_oldgid;
+ dn->dn_newprojid = dn->dn_oldprojid;
} else {
dn->dn_newuid = 0;
dn->dn_newgid = 0;
+ dn->dn_newprojid = ZFS_DEFAULT_PROJID;
}
error = 0;
}
OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE);
}
+boolean_t
+dmu_objset_projectquota_present(objset_t *os)
+{
+ return (os->os_phys->os_flags &
+ OBJSET_FLAG_PROJECTQUOTA_COMPLETE);
+}
+
static int
dmu_objset_space_upgrade(objset_t *os)
{
dmu_tx_hold_bonus(tx, obj);
objerr = dmu_tx_assign(tx, TXG_WAIT);
if (objerr != 0) {
+ dmu_buf_rele(db, FTAG);
dmu_tx_abort(tx);
continue;
}
return (0);
}
-int
-dmu_objset_userspace_upgrade(objset_t *os)
+static int
+dmu_objset_userspace_upgrade_cb(objset_t *os)
{
int err = 0;
return (0);
}
+void
+dmu_objset_userspace_upgrade(objset_t *os)
+{
+ dmu_objset_upgrade(os, dmu_objset_userspace_upgrade_cb);
+}
+
static int
-dmu_objset_userobjspace_upgrade_cb(objset_t *os)
+dmu_objset_id_quota_upgrade_cb(objset_t *os)
{
int err = 0;
- if (dmu_objset_userobjspace_present(os))
+ if (dmu_objset_userobjspace_present(os) &&
+ dmu_objset_projectquota_present(os))
return (0);
if (dmu_objset_is_snapshot(os))
return (SET_ERROR(EINVAL));
- if (!dmu_objset_userobjused_enabled(os))
+ if (!dmu_objset_userused_enabled(os))
+ return (SET_ERROR(ENOTSUP));
+ if (!dmu_objset_projectquota_enabled(os) &&
+ dmu_objset_userobjspace_present(os))
return (SET_ERROR(ENOTSUP));
- dmu_objset_ds(os)->ds_feature_activation_needed[
- SPA_FEATURE_USEROBJ_ACCOUNTING] = B_TRUE;
+ if (dmu_objset_userobjused_enabled(os))
+ dmu_objset_ds(os)->ds_feature_activation[
+ SPA_FEATURE_USEROBJ_ACCOUNTING] = (void *)B_TRUE;
+ if (dmu_objset_projectquota_enabled(os))
+ dmu_objset_ds(os)->ds_feature_activation[
+ SPA_FEATURE_PROJECT_QUOTA] = (void *)B_TRUE;
err = dmu_objset_space_upgrade(os);
if (err)
return (err);
- os->os_flags |= OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE;
+ os->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE;
+ if (dmu_objset_userobjused_enabled(os))
+ os->os_flags |= OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE;
+ if (dmu_objset_projectquota_enabled(os))
+ os->os_flags |= OBJSET_FLAG_PROJECTQUOTA_COMPLETE;
+
txg_wait_synced(dmu_objset_pool(os), 0);
return (0);
}
void
-dmu_objset_userobjspace_upgrade(objset_t *os)
+dmu_objset_id_quota_upgrade(objset_t *os)
+{
+ dmu_objset_upgrade(os, dmu_objset_id_quota_upgrade_cb);
+}
+
+boolean_t
+dmu_objset_userobjspace_upgradable(objset_t *os)
{
- dmu_objset_upgrade(os, dmu_objset_userobjspace_upgrade_cb);
+ return (dmu_objset_type(os) == DMU_OST_ZFS &&
+ !dmu_objset_is_snapshot(os) &&
+ dmu_objset_userobjused_enabled(os) &&
+ !dmu_objset_userobjspace_present(os) &&
+ spa_writeable(dmu_objset_spa(os)));
+}
+
+boolean_t
+dmu_objset_projectquota_upgradable(objset_t *os)
+{
+ return (dmu_objset_type(os) == DMU_OST_ZFS &&
+ !dmu_objset_is_snapshot(os) &&
+ dmu_objset_projectquota_enabled(os) &&
+ !dmu_objset_projectquota_present(os) &&
+ spa_writeable(dmu_objset_spa(os)));
}
void
}
int
-dmu_snapshot_realname(objset_t *os, char *name, char *real, int maxlen,
+dmu_snapshot_realname(objset_t *os, const char *name, char *real, int maxlen,
boolean_t *conflict)
{
dsl_dataset_t *ds = os->os_dsl_dataset;
return (zap_lookup_norm(ds->ds_dir->dd_pool->dp_meta_objset,
dsl_dataset_phys(ds)->ds_snapnames_zapobj, name, 8, 1, &ignored,
- MT_FIRST, real, maxlen, conflict));
+ MT_NORMALIZE, real, maxlen, conflict));
}
int
return (SET_ERROR(ENAMETOOLONG));
}
- (void) strcpy(name, attr.za_name);
+ (void) strlcpy(name, attr.za_name, namelen);
if (idp)
*idp = attr.za_first_integer;
if (case_conflict)
return (SET_ERROR(ENAMETOOLONG));
}
- (void) strcpy(name, attr.za_name);
+ (void) strlcpy(name, attr.za_name, namelen);
if (idp)
*idp = attr.za_first_integer;
zap_cursor_advance(&cursor);
taskq_t *dc_tq;
dsl_pool_t *dc_dp;
uint64_t dc_ddobj;
+ char *dc_ddname; /* last component of ddobj's name */
int (*dc_func)(dsl_pool_t *, dsl_dataset_t *, void *);
void *dc_arg;
int dc_flags;
dmu_objset_find_dp_impl(dmu_objset_find_ctx_t *dcp)
{
dsl_pool_t *dp = dcp->dc_dp;
- dmu_objset_find_ctx_t *child_dcp;
dsl_dir_t *dd;
dsl_dataset_t *ds;
zap_cursor_t zc;
if (*dcp->dc_error != 0)
goto out;
- err = dsl_dir_hold_obj(dp, dcp->dc_ddobj, NULL, FTAG, &dd);
+ /*
+ * Note: passing the name (dc_ddname) here is optional, but it
+ * improves performance because we don't need to call
+ * zap_value_search() to determine the name.
+ */
+ err = dsl_dir_hold_obj(dp, dcp->dc_ddobj, dcp->dc_ddname, FTAG, &dd);
if (err != 0)
goto out;
sizeof (uint64_t));
ASSERT3U(attr->za_num_integers, ==, 1);
- child_dcp = kmem_alloc(sizeof (*child_dcp), KM_SLEEP);
+ dmu_objset_find_ctx_t *child_dcp =
+ kmem_alloc(sizeof (*child_dcp), KM_SLEEP);
*child_dcp = *dcp;
child_dcp->dc_ddobj = attr->za_first_integer;
+ child_dcp->dc_ddname = spa_strdup(attr->za_name);
if (dcp->dc_tq != NULL)
(void) taskq_dispatch(dcp->dc_tq,
dmu_objset_find_dp_cb, child_dcp, TQ_SLEEP);
}
}
- dsl_dir_rele(dd, FTAG);
kmem_free(attr, sizeof (zap_attribute_t));
- if (err != 0)
+ if (err != 0) {
+ dsl_dir_rele(dd, FTAG);
goto out;
+ }
/*
* Apply to self.
*/
err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds);
+
+ /*
+ * Note: we hold the dir while calling dsl_dataset_hold_obj() so
+ * that the dir will remain cached, and we won't have to re-instantiate
+ * it (which could be expensive due to finding its name via
+ * zap_value_search()).
+ */
+ dsl_dir_rele(dd, FTAG);
if (err != 0)
goto out;
err = dcp->dc_func(dp, ds, dcp->dc_arg);
mutex_exit(dcp->dc_error_lock);
}
+ if (dcp->dc_ddname != NULL)
+ spa_strfree(dcp->dc_ddname);
kmem_free(dcp, sizeof (*dcp));
}
/*
* We need to get a pool_config_lock here, as there are several
- * asssert(pool_config_held) down the stack. Getting a lock via
+ * assert(pool_config_held) down the stack. Getting a lock via
* dsl_pool_config_enter is risky, as it might be stalled by a
* pending writer. This would deadlock, as the write lock can
* only be granted when our parent thread gives up the lock.
dcp->dc_tq = NULL;
dcp->dc_dp = dp;
dcp->dc_ddobj = ddobj;
+ dcp->dc_ddname = NULL;
dcp->dc_func = func;
dcp->dc_arg = arg;
dcp->dc_flags = flags;
err = dmu_objset_find_impl(spa, child,
func, arg, flags);
dsl_pool_config_enter(dp, FTAG);
- strfree(child);
+ kmem_strfree(child);
if (err != 0)
break;
}
dsl_pool_config_exit(dp, FTAG);
err = func(child, arg);
dsl_pool_config_enter(dp, FTAG);
- strfree(child);
+ kmem_strfree(child);
if (err != 0)
break;
}
* See comment above dmu_objset_find_impl().
*/
int
-dmu_objset_find(char *name, int func(const char *, void *), void *arg,
+dmu_objset_find(const char *name, int func(const char *, void *), void *arg,
int flags)
{
spa_t *spa;
return (error);
}
+boolean_t
+dmu_objset_incompatible_encryption_version(objset_t *os)
+{
+ return (dsl_dir_incompatible_encryption_version(
+ os->os_dsl_dataset->ds_dir));
+}
+
void
dmu_objset_set_user(objset_t *os, void *user_ptr)
{
return (0);
}
-#if defined(_KERNEL) && defined(HAVE_SPL)
+/*
+ * Call when we think we're going to write/free space in open context
+ * to track the amount of dirty data in the open txg, which is also the
+ * amount of memory that can not be evicted until this txg syncs.
+ *
+ * Note that there are two conditions where this can be called from
+ * syncing context:
+ *
+ * [1] When we just created the dataset, in which case we go on with
+ * updating any accounting of dirty data as usual.
+ * [2] When we are dirtying MOS data, in which case we only update the
+ * pool's accounting of dirty data.
+ */
+void
+dmu_objset_willuse_space(objset_t *os, int64_t space, dmu_tx_t *tx)
+{
+ dsl_dataset_t *ds = os->os_dsl_dataset;
+ int64_t aspace = spa_get_worst_case_asize(os->os_spa, space);
+
+ if (ds != NULL) {
+ dsl_dir_willuse_space(ds->ds_dir, aspace, tx);
+ }
+
+ dsl_pool_dirty_space(dmu_tx_pool(tx), space, tx);
+}
+
+#if defined(_KERNEL)
EXPORT_SYMBOL(dmu_objset_zil);
EXPORT_SYMBOL(dmu_objset_pool);
EXPORT_SYMBOL(dmu_objset_ds);
EXPORT_SYMBOL(dmu_objset_type);
EXPORT_SYMBOL(dmu_objset_name);
EXPORT_SYMBOL(dmu_objset_hold);
+EXPORT_SYMBOL(dmu_objset_hold_flags);
EXPORT_SYMBOL(dmu_objset_own);
EXPORT_SYMBOL(dmu_objset_rele);
+EXPORT_SYMBOL(dmu_objset_rele_flags);
EXPORT_SYMBOL(dmu_objset_disown);
EXPORT_SYMBOL(dmu_objset_from_ds);
EXPORT_SYMBOL(dmu_objset_create);
EXPORT_SYMBOL(dmu_objset_sync);
EXPORT_SYMBOL(dmu_objset_is_dirty);
+EXPORT_SYMBOL(dmu_objset_create_impl_dnstats);
EXPORT_SYMBOL(dmu_objset_create_impl);
EXPORT_SYMBOL(dmu_objset_open_impl);
EXPORT_SYMBOL(dmu_objset_evict);
EXPORT_SYMBOL(dmu_objset_register_type);
-EXPORT_SYMBOL(dmu_objset_do_userquota_updates);
+EXPORT_SYMBOL(dmu_objset_sync_done);
EXPORT_SYMBOL(dmu_objset_userquota_get_ids);
EXPORT_SYMBOL(dmu_objset_userused_enabled);
EXPORT_SYMBOL(dmu_objset_userspace_upgrade);
EXPORT_SYMBOL(dmu_objset_userspace_present);
EXPORT_SYMBOL(dmu_objset_userobjused_enabled);
-EXPORT_SYMBOL(dmu_objset_userobjspace_upgrade);
+EXPORT_SYMBOL(dmu_objset_userobjspace_upgradable);
EXPORT_SYMBOL(dmu_objset_userobjspace_present);
+EXPORT_SYMBOL(dmu_objset_projectquota_enabled);
+EXPORT_SYMBOL(dmu_objset_projectquota_present);
+EXPORT_SYMBOL(dmu_objset_projectquota_upgradable);
+EXPORT_SYMBOL(dmu_objset_id_quota_upgrade);
#endif
projects / mirror_zfs.git / blobdiff