*
* CDDL HEADER END
*/
+
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2018 by Delphix. All rights reserved.
* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
- * Copyright (c) 2012 by Delphix. All rights reserved.
+ * Copyright (c) 2013, Joyent, Inc. All rights reserved.
+ * Copyright (c) 2014 Spectra Logic Corporation, 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.
*/
/* 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/sa.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"
/*
* 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 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;
+
+/*
+ * 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 char *upgrade_tag = "upgrade_tag";
+
+static void dmu_objset_find_dp_cb(void *arg);
+
+static void dmu_objset_upgrade(objset_t *os, dmu_objset_upgrade_cb_t cb);
+static void dmu_objset_upgrade_stop(objset_t *os);
+
void
dmu_objset_init(void)
{
}
uint64_t
+dmu_objset_dnodesize(objset_t *os)
+{
+ return (os->os_dnodesize);
+}
+
+zfs_sync_type_t
dmu_objset_syncprop(objset_t *os)
{
return (os->os_sync);
}
-uint64_t
+zfs_logbias_op_t
dmu_objset_logbias(objset_t *os)
{
return (os->os_logbias);
*/
ASSERT(newval != ZIO_COMPRESS_INHERIT);
- os->os_compress = zio_compress_select(newval, ZIO_COMPRESS_ON_VALUE);
+ os->os_compress = zio_compress_select(os->os_spa, newval,
+ ZIO_COMPRESS_ON);
}
static void
zil_set_sync(os->os_zil, newval);
}
+static void
+redundant_metadata_changed_cb(void *arg, uint64_t newval)
+{
+ objset_t *os = arg;
+
+ /*
+ * Inheritance and range checking should have been done by now.
+ */
+ ASSERT(newval == ZFS_REDUNDANT_METADATA_ALL ||
+ newval == ZFS_REDUNDANT_METADATA_MOST);
+
+ os->os_redundant_metadata = newval;
+}
+
+static void
+dnodesize_changed_cb(void *arg, uint64_t newval)
+{
+ objset_t *os = arg;
+
+ switch (newval) {
+ case ZFS_DNSIZE_LEGACY:
+ os->os_dnodesize = DNODE_MIN_SIZE;
+ break;
+ case ZFS_DNSIZE_AUTO:
+ /*
+ * Choose a dnode size that will work well for most
+ * workloads if the user specified "auto". Future code
+ * improvements could dynamically select a dnode size
+ * based on observed workload patterns.
+ */
+ os->os_dnodesize = DNODE_MIN_SIZE * 2;
+ break;
+ case ZFS_DNSIZE_1K:
+ case ZFS_DNSIZE_2K:
+ case ZFS_DNSIZE_4K:
+ case ZFS_DNSIZE_8K:
+ case ZFS_DNSIZE_16K:
+ os->os_dnodesize = newval;
+ break;
+ }
+}
+
+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_OLD_MAXBLOCKSIZE);
+ ASSERT(ISP2(newval));
+
+ os->os_zpl_special_smallblock = newval;
+}
+
static void
logbias_changed_cb(void *arg, uint64_t newval)
{
zil_set_logbias(os->os_zil, newval);
}
+static void
+recordsize_changed_cb(void *arg, uint64_t newval)
+{
+ objset_t *os = arg;
+
+ os->os_recordsize = newval;
+}
+
void
dmu_objset_byteswap(void *buf, size_t size)
{
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);
+}
+
+unsigned int
+dnode_multilist_index_func(multilist_t *ml, void *obj)
+{
+ dnode_t *dn = obj;
+ return (dnode_hash(dn->dn_objset, dn->dn_object) %
+ multilist_get_num_sublists(ml));
+}
+
+/*
+ * 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)
ASSERT(ds == NULL || MUTEX_HELD(&ds->ds_opening_lock));
- os = kmem_zalloc(sizeof (objset_t), KM_PUSHPAGE);
+ /*
+ * 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;
os->os_spa = spa;
os->os_rootbp = bp;
if (!BP_IS_HOLE(os->os_rootbp)) {
- uint32_t aflags = ARC_WAIT;
- zbookmark_t zb;
+ arc_flags_t aflags = ARC_FLAG_WAIT;
+ zbookmark_phys_t zb;
+ int size;
+ enum zio_flag 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))
- aflags |= ARC_L2CACHE;
- if (DMU_OS_IS_L2COMPRESSIBLE(os))
- aflags |= ARC_L2COMPRESS;
+ 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 */
if (err == ECKSUM)
- err = EIO;
+ err = SET_ERROR(EIO);
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)) {
- arc_buf_t *buf = arc_buf_alloc(spa,
- sizeof (objset_phys_t), &os->os_phys_buf,
- ARC_BUFC_METADATA);
- bzero(buf->b_data, 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, size);
+ bzero(buf->b_data, size);
bcopy(os->os_phys_buf->b_data, buf->b_data,
arc_buf_size(os->os_phys_buf));
- (void) arc_buf_remove_ref(os->os_phys_buf,
- &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;
- os->os_phys_buf = arc_buf_alloc(spa, size,
- &os->os_phys_buf, ARC_BUFC_METADATA);
+ 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);
}
+ /*
+ * 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
* default (fletcher2/off). Snapshots don't need to know about
* checksum/compression/copies.
*/
- if (ds) {
+ 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 (!dsl_dataset_is_snapshot(ds)) {
+ if (!ds->ds_is_snapshot) {
if (err == 0) {
err = dsl_prop_register(ds,
zfs_prop_to_name(ZFS_PROP_CHECKSUM),
zfs_prop_to_name(ZFS_PROP_SYNC),
sync_changed_cb, os);
}
+ if (err == 0) {
+ err = dsl_prop_register(ds,
+ zfs_prop_to_name(
+ ZFS_PROP_REDUNDANT_METADATA),
+ redundant_metadata_changed_cb, os);
+ }
+ if (err == 0) {
+ err = dsl_prop_register(ds,
+ zfs_prop_to_name(ZFS_PROP_RECORDSIZE),
+ recordsize_changed_cb, os);
+ }
+ 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) {
- VERIFY(arc_buf_remove_ref(os->os_phys_buf,
- &os->os_phys_buf));
+ arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf);
kmem_free(os, sizeof (objset_t));
return (err);
}
- } else if (ds == NULL) {
+ } else {
/* It's the meta-objset. */
os->os_checksum = ZIO_CHECKSUM_FLETCHER_4;
- os->os_compress = ZIO_COMPRESS_LZJB;
+ os->os_compress = ZIO_COMPRESS_ON;
+ os->os_encrypted = B_FALSE;
os->os_copies = spa_max_replication(spa);
os->os_dedup_checksum = ZIO_CHECKSUM_OFF;
- os->os_dedup_verify = 0;
- os->os_logbias = 0;
- os->os_sync = 0;
+ os->os_dedup_verify = B_FALSE;
+ os->os_logbias = ZFS_LOGBIAS_LATENCY;
+ os->os_sync = ZFS_SYNC_STANDARD;
os->os_primary_cache = ZFS_CACHE_ALL;
os->os_secondary_cache = ZFS_CACHE_ALL;
+ os->os_dnodesize = DNODE_MIN_SIZE;
}
- if (ds == NULL || !dsl_dataset_is_snapshot(ds))
+ if (ds == NULL || !ds->ds_is_snapshot)
os->os_zil_header = os->os_phys->os_zil_header;
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]));
+ os->os_dirty_dnodes[i] = multilist_create(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_create(&os->os_downgraded_dbufs, sizeof (dmu_buf_impl_t),
offsetof(dmu_buf_impl_t, db_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);
-
- DMU_META_DNODE(os) = 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)) {
- DMU_USERUSED_DNODE(os) = dnode_special_open(os,
- &os->os_phys->os_userused_dnode, DMU_USERUSED_OBJECT,
- &os->os_userused_dnode);
- DMU_GROUPUSED_DNODE(os) = dnode_special_open(os,
- &os->os_phys->os_groupused_dnode, DMU_GROUPUSED_OBJECT,
- &os->os_groupused_dnode);
+ 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 (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);
}
- /*
- * We should be the only thread trying to do this because we
- * have ds_opening_lock
- */
- if (ds) {
- mutex_enter(&ds->ds_lock);
- ASSERT(ds->ds_objset == NULL);
- ds->ds_objset = os;
- mutex_exit(&ds->ds_lock);
- }
+ mutex_init(&os->os_upgrade_lock, NULL, MUTEX_DEFAULT, NULL);
*osp = os;
return (0);
{
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.
+ */
+ ASSERT(dsl_pool_config_held(ds->ds_dir->dd_pool) ||
+ dsl_dataset_long_held(ds));
+
mutex_enter(&ds->ds_opening_lock);
- *osp = ds->ds_objset;
- if (*osp == NULL) {
+ 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), osp);
+ ds, dsl_dataset_get_blkptr(ds), &os);
+ rrw_exit(&ds->ds_bp_rwlock, FTAG);
+
+ if (err == 0) {
+ mutex_enter(&ds->ds_lock);
+ ASSERT(ds->ds_objset == NULL);
+ ds->ds_objset = os;
+ mutex_exit(&ds->ds_lock);
+ }
}
+ *osp = ds->ds_objset;
mutex_exit(&ds->ds_opening_lock);
return (err);
}
* 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, void *tag,
+ objset_t **osp)
{
dsl_pool_t *dp;
dsl_dataset_t *ds;
int err;
+ ds_hold_flags_t flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0;
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, 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, boolean_t decrypt, void *tag, objset_t **osp)
+{
+ int err;
+
+ err = dmu_objset_from_ds(ds, osp);
+ if (err != 0) {
+ return (err);
+ } else if (type != DMU_OST_ANY && type != (*osp)->os_phys->os_type) {
+ return (SET_ERROR(EINVAL));
+ } else if (!readonly && dsl_dataset_is_snapshot(ds)) {
+ return (SET_ERROR(EROFS));
+ } else if (!readonly && decrypt &&
+ dsl_dir_incompatible_encryption_version(ds->ds_dir)) {
+ return (SET_ERROR(EROFS));
+ }
+
+ /* 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);
+}
+
/*
* dsl_pool must not be held when this is called.
* Upon successful return, there will be a longhold on the dataset,
*/
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, void *tag, objset_t **osp)
{
dsl_pool_t *dp;
dsl_dataset_t *ds;
int err;
+ ds_hold_flags_t flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0;
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, decrypt, tag, osp);
if (err != 0) {
+ dsl_dataset_disown(ds, flags, tag);
dsl_pool_rele(dp, FTAG);
return (err);
}
- err = dmu_objset_from_ds(ds, 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 ((dmu_objset_userobjspace_upgradable(*osp) ||
+ dmu_objset_projectquota_upgradable(*osp)) &&
+ !readonly && !dp->dp_spa->spa_claiming &&
+ (ds->ds_dir->dd_crypto_obj == 0 || decrypt))
+ dmu_objset_id_quota_upgrade(*osp);
+
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, boolean_t decrypt, void *tag, objset_t **osp)
+{
+ dsl_dataset_t *ds;
+ int err;
+ ds_hold_flags_t flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0;
+
+ err = dsl_dataset_own_obj(dp, obj, flags, tag, &ds);
+ if (err != 0)
+ return (err);
+
+ err = dmu_objset_own_impl(ds, type, readonly, decrypt, tag, osp);
if (err != 0) {
- dsl_dataset_disown(ds, tag);
- } else if (type != DMU_OST_ANY && type != (*osp)->os_phys->os_type) {
- dsl_dataset_disown(ds, tag);
- return (EINVAL);
- } else if (!readonly && dsl_dataset_is_snapshot(ds)) {
- dsl_dataset_disown(ds, tag);
- return (EROFS);
+ dsl_dataset_disown(ds, flags, tag);
+ return (err);
}
- return (err);
+
+ return (0);
}
void
-dmu_objset_rele(objset_t *os, void *tag)
+dmu_objset_rele_flags(objset_t *os, boolean_t decrypt, void *tag)
{
+ ds_hold_flags_t flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0;
+
dsl_pool_t *dp = dmu_objset_pool(os);
- dsl_dataset_rele(os->os_dsl_dataset, tag);
+ dsl_dataset_rele_flags(os->os_dsl_dataset, flags, tag);
dsl_pool_rele(dp, tag);
}
void
-dmu_objset_disown(objset_t *os, void *tag)
+dmu_objset_rele(objset_t *os, void *tag)
{
- dsl_dataset_disown(os->os_dsl_dataset, 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
+ * == tag. We will then release and reacquire ownership of the dataset while
+ * holding the pool config_rwlock to avoid intervening namespace or ownership
+ * changes may occur.
+ *
+ * This exists solely to accommodate zfs_ioc_userspace_upgrade()'s desire to
+ * release the hold on its dataset and acquire a new one on the dataset of the
+ * same name so that it can be partially torn down and reconstructed.
+ */
void
-dmu_objset_evict_dbufs(objset_t *os)
+dmu_objset_refresh_ownership(dsl_dataset_t *ds, dsl_dataset_t **newds,
+ boolean_t decrypt, void *tag)
{
- dnode_t *dn;
+ dsl_pool_t *dp;
+ char name[ZFS_MAX_DATASET_NAME_LEN];
- mutex_enter(&os->os_lock);
+ VERIFY3P(ds, !=, NULL);
+ VERIFY3P(ds->ds_owner, ==, tag);
+ VERIFY(dsl_dataset_long_held(ds));
- /* process the mdn last, since the other dnodes have holds on it */
- list_remove(&os->os_dnodes, DMU_META_DNODE(os));
- list_insert_tail(&os->os_dnodes, DMU_META_DNODE(os));
+ dsl_dataset_name(ds, name);
+ dp = ds->ds_dir->dd_pool;
+ dsl_pool_config_enter(dp, FTAG);
+ dsl_dataset_disown(ds, decrypt, tag);
+ VERIFY0(dsl_dataset_own(dp, name,
+ (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0, tag, newds));
+ dsl_pool_config_exit(dp, FTAG);
+}
+void
+dmu_objset_disown(objset_t *os, boolean_t decrypt, void *tag)
+{
/*
- * Find the first dnode with holds. We have to do this dance
- * because dnode_add_ref() only works if you already have a
- * hold. If there are no holds then it has no dbufs so OK to
- * skip.
+ * Stop upgrading thread
*/
- for (dn = list_head(&os->os_dnodes);
- dn && !dnode_add_ref(dn, FTAG);
- dn = list_next(&os->os_dnodes, dn))
- continue;
+ dmu_objset_upgrade_stop(os);
+ dsl_dataset_disown(os->os_dsl_dataset,
+ (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0, tag);
+}
- while (dn) {
- dnode_t *next_dn = dn;
+void
+dmu_objset_evict_dbufs(objset_t *os)
+{
+ dnode_t *dn_marker;
+ dnode_t *dn;
- do {
- next_dn = list_next(&os->os_dnodes, next_dn);
- } while (next_dn && !dnode_add_ref(next_dn, FTAG));
+ dn_marker = kmem_alloc(sizeof (dnode_t), KM_SLEEP);
- mutex_exit(&os->os_lock);
- dnode_evict_dbufs(dn);
- dnode_rele(dn, FTAG);
- mutex_enter(&os->os_lock);
- dn = next_dn;
+ mutex_enter(&os->os_lock);
+ dn = list_head(&os->os_dnodes);
+ while (dn != NULL) {
+ /*
+ * Skip dnodes without holds. We have to do this dance
+ * because dnode_add_ref() only works if there is already a
+ * hold. If the dnode has no holds, then it has no dbufs.
+ */
+ if (dnode_add_ref(dn, FTAG)) {
+ list_insert_after(&os->os_dnodes, dn, dn_marker);
+ mutex_exit(&os->os_lock);
+
+ dnode_evict_dbufs(dn);
+ dnode_rele(dn, FTAG);
+
+ mutex_enter(&os->os_lock);
+ dn = list_next(&os->os_dnodes, dn_marker);
+ list_remove(&os->os_dnodes, dn_marker);
+ } else {
+ dn = list_next(&os->os_dnodes, dn);
+ }
}
mutex_exit(&os->os_lock);
+
+ 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));
+ }
+ dnode_evict_dbufs(DMU_META_DNODE(os));
}
+/*
+ * Objset eviction processing is split into into two pieces.
+ * The first marks the objset as evicting, evicts any dbufs that
+ * have a refcount of zero, and then queues up the objset for the
+ * second phase of eviction. Once os->os_dnodes has been cleared by
+ * dnode_buf_pageout()->dnode_destroy(), the second phase is executed.
+ * The second phase closes the special dnodes, dequeues the objset from
+ * the list of those undergoing eviction, and finally frees the objset.
+ *
+ * NOTE: Due to asynchronous eviction processing (invocation of
+ * dnode_buf_pageout()), it is possible for the meta dnode for the
+ * objset to have no holds even though os->os_dnodes is not empty.
+ */
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) {
- if (!dsl_dataset_is_snapshot(ds)) {
- VERIFY0(dsl_prop_unregister(ds,
- zfs_prop_to_name(ZFS_PROP_CHECKSUM),
- checksum_changed_cb, os));
- VERIFY0(dsl_prop_unregister(ds,
- zfs_prop_to_name(ZFS_PROP_COMPRESSION),
- compression_changed_cb, os));
- VERIFY0(dsl_prop_unregister(ds,
- zfs_prop_to_name(ZFS_PROP_COPIES),
- copies_changed_cb, os));
- VERIFY0(dsl_prop_unregister(ds,
- zfs_prop_to_name(ZFS_PROP_DEDUP),
- dedup_changed_cb, os));
- VERIFY0(dsl_prop_unregister(ds,
- zfs_prop_to_name(ZFS_PROP_LOGBIAS),
- logbias_changed_cb, os));
- VERIFY0(dsl_prop_unregister(ds,
- zfs_prop_to_name(ZFS_PROP_SYNC),
- sync_changed_cb, os));
- }
- VERIFY0(dsl_prop_unregister(ds,
- zfs_prop_to_name(ZFS_PROP_PRIMARYCACHE),
- primary_cache_changed_cb, os));
- VERIFY0(dsl_prop_unregister(ds,
- zfs_prop_to_name(ZFS_PROP_SECONDARYCACHE),
- secondary_cache_changed_cb, os));
- }
+ if (ds)
+ dsl_prop_unregister_all(ds, os);
if (os->os_sa)
sa_tear_down(os);
dmu_objset_evict_dbufs(os);
+ mutex_enter(&os->os_lock);
+ spa_evicting_os_register(os->os_spa, os);
+ if (list_is_empty(&os->os_dnodes)) {
+ mutex_exit(&os->os_lock);
+ dmu_objset_evict_done(os);
+ } else {
+ mutex_exit(&os->os_lock);
+ }
+
+
+}
+
+void
+dmu_objset_evict_done(objset_t *os)
+{
+ ASSERT3P(list_head(&os->os_dnodes), ==, NULL);
+
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);
}
zil_free(os->os_zil);
- ASSERT3P(list_head(&os->os_dnodes), ==, NULL);
-
- VERIFY(arc_buf_remove_ref(os->os_phys_buf, &os->os_phys_buf));
+ arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf);
/*
* This is a barrier to prevent the objset from going away in
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, 1 << DNODE_BLOCK_SHIFT,
- DN_MAX_INDBLKSHIFT, DMU_OT_NONE, 0, 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
* 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[
+ SPA_FEATURE_USEROBJ_ACCOUNTING] = (void *)B_TRUE;
+ os->os_phys->os_flags |=
+ OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE;
+ }
+ if (dmu_objset_projectquota_enabled(os)) {
+ 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;
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*/
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 (strchr(doca->doca_name, '@') != NULL)
- return (EINVAL);
+ return (SET_ERROR(EINVAL));
+
+ 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);
if (tail == NULL) {
dsl_dir_rele(pdd, FTAG);
- return (EEXIST);
+ 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);
+ 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 (0);
+ return (error);
}
static void
{
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);
}
+ /*
+ * 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));
+
+ dmu_objset_do_userquota_updates(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);
+ }
+
+ 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(ds, FTAG);
+ zvol_create_minors(spa, doca->doca_name, B_TRUE);
+
+ 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_userarg = arg;
doca.doca_type = type;
+ /*
+ * 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;
+
return (dsl_sync_task(name,
- dmu_objset_create_check, dmu_objset_create_sync, &doca, 5));
+ dmu_objset_create_check, dmu_objset_create_sync, &doca,
+ 6, ZFS_SPACE_CHECK_NORMAL));
}
typedef struct dmu_objset_clone_arg {
dsl_pool_t *dp = dmu_tx_pool(tx);
if (strchr(doca->doca_clone, '@') != NULL)
- return (EINVAL);
+ return (SET_ERROR(EINVAL));
+
+ if (strlen(doca->doca_clone) >= ZFS_MAX_DATASET_NAME_LEN)
+ return (SET_ERROR(ENAMETOOLONG));
error = dsl_dir_hold(dp, doca->doca_clone, FTAG, &pdd, &tail);
if (error != 0)
return (error);
if (tail == NULL) {
dsl_dir_rele(pdd, FTAG);
- return (EEXIST);
+ return (SET_ERROR(EEXIST));
}
- /* You can't clone across pools. */
- if (pdd->dd_pool != dp) {
+
+ error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL,
+ doca->doca_cred);
+ if (error != 0) {
dsl_dir_rele(pdd, FTAG);
- return (EXDEV);
+ 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't clone across pools. */
- if (origin->ds_dir->dd_pool != dp) {
+ /* You can only clone snapshots, not the head datasets. */
+ if (!origin->ds_is_snapshot) {
dsl_dataset_rele(origin, FTAG);
- return (EXDEV);
+ dsl_dir_rele(pdd, FTAG);
+ return (SET_ERROR(EINVAL));
}
- /* You can only clone snapshots, not the head datasets. */
- if (!dsl_dataset_is_snapshot(origin)) {
+ error = dmu_objset_clone_crypt_check(pdd, origin->ds_dir);
+ if (error != 0) {
dsl_dataset_rele(origin, FTAG);
- return (EINVAL);
+ dsl_dir_rele(pdd, FTAG);
+ return (error);
}
+
dsl_dataset_rele(origin, FTAG);
+ dsl_dir_rele(pdd, FTAG);
return (0);
}
const char *tail;
dsl_dataset_t *origin, *ds;
uint64_t obj;
- char namebuf[MAXNAMELEN];
+ char namebuf[ZFS_MAX_DATASET_NAME_LEN];
VERIFY0(dsl_dir_hold(dp, doca->doca_clone, FTAG, &pdd, &tail));
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);
dsl_dataset_rele(ds, FTAG);
dsl_dataset_rele(origin, FTAG);
dsl_dir_rele(pdd, FTAG);
doca.doca_cred = CRED();
return (dsl_sync_task(clone,
- dmu_objset_clone_check, dmu_objset_clone_sync, &doca, 5));
+ dmu_objset_clone_check, dmu_objset_clone_sync, &doca,
+ 6, ZFS_SPACE_CHECK_NORMAL));
+}
+
+static int
+dmu_objset_remap_indirects_impl(objset_t *os, uint64_t last_removed_txg)
+{
+ int error = 0;
+ uint64_t object = 0;
+ while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
+ error = dmu_object_remap_indirects(os, object,
+ last_removed_txg);
+ /*
+ * If the ZPL removed the object before we managed to dnode_hold
+ * it, we would get an ENOENT. If the ZPL declares its intent
+ * to remove the object (dnode_free) before we manage to
+ * dnode_hold it, we would get an EEXIST. In either case, we
+ * want to continue remapping the other objects in the objset;
+ * in all other cases, we want to break early.
+ */
+ if (error != 0 && error != ENOENT && error != EEXIST) {
+ break;
+ }
+ }
+ if (error == ESRCH) {
+ error = 0;
+ }
+ return (error);
+}
+
+int
+dmu_objset_remap_indirects(const char *fsname)
+{
+ int error = 0;
+ objset_t *os = NULL;
+ uint64_t last_removed_txg;
+ uint64_t remap_start_txg;
+ dsl_dir_t *dd;
+
+ error = dmu_objset_hold(fsname, FTAG, &os);
+ if (error != 0) {
+ return (error);
+ }
+ dd = dmu_objset_ds(os)->ds_dir;
+
+ if (!spa_feature_is_enabled(dmu_objset_spa(os),
+ SPA_FEATURE_OBSOLETE_COUNTS)) {
+ dmu_objset_rele(os, FTAG);
+ return (SET_ERROR(ENOTSUP));
+ }
+
+ if (dsl_dataset_is_snapshot(dmu_objset_ds(os))) {
+ dmu_objset_rele(os, FTAG);
+ return (SET_ERROR(EINVAL));
+ }
+
+ /*
+ * If there has not been a removal, we're done.
+ */
+ last_removed_txg = spa_get_last_removal_txg(dmu_objset_spa(os));
+ if (last_removed_txg == -1ULL) {
+ dmu_objset_rele(os, FTAG);
+ return (0);
+ }
+
+ /*
+ * If we have remapped since the last removal, we're done.
+ */
+ if (dsl_dir_is_zapified(dd)) {
+ uint64_t last_remap_txg;
+ if (zap_lookup(spa_meta_objset(dmu_objset_spa(os)),
+ dd->dd_object, DD_FIELD_LAST_REMAP_TXG,
+ sizeof (last_remap_txg), 1, &last_remap_txg) == 0 &&
+ last_remap_txg > last_removed_txg) {
+ dmu_objset_rele(os, FTAG);
+ return (0);
+ }
+ }
+
+ dsl_dataset_long_hold(dmu_objset_ds(os), FTAG);
+ dsl_pool_rele(dmu_objset_pool(os), FTAG);
+
+ remap_start_txg = spa_last_synced_txg(dmu_objset_spa(os));
+ error = dmu_objset_remap_indirects_impl(os, last_removed_txg);
+ if (error == 0) {
+ /*
+ * We update the last_remap_txg to be the start txg so that
+ * we can guarantee that every block older than last_remap_txg
+ * that can be remapped has been remapped.
+ */
+ error = dsl_dir_update_last_remap_txg(dd, remap_start_txg);
+ }
+
+ dsl_dataset_long_rele(dmu_objset_ds(os), FTAG);
+ dsl_dataset_rele(dmu_objset_ds(os), FTAG);
+
+ return (error);
}
int
}
static void
-dmu_objset_sync_dnodes(list_t *list, list_t *newlist, dmu_tx_t *tx)
+dmu_objset_upgrade_task_cb(void *data)
+{
+ objset_t *os = data;
+
+ mutex_enter(&os->os_upgrade_lock);
+ os->os_upgrade_status = EINTR;
+ if (!os->os_upgrade_exit) {
+ mutex_exit(&os->os_upgrade_lock);
+
+ os->os_upgrade_status = os->os_upgrade_cb(os);
+ mutex_enter(&os->os_upgrade_lock);
+ }
+ 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
+dmu_objset_upgrade(objset_t *os, dmu_objset_upgrade_cb_t cb)
+{
+ 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_cb = cb;
+ 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 == TASKQID_INVALID) {
+ dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag);
+ os->os_upgrade_status = ENOMEM;
+ }
+ }
+ mutex_exit(&os->os_upgrade_lock);
+}
+
+static void
+dmu_objset_upgrade_stop(objset_t *os)
+{
+ mutex_enter(&os->os_upgrade_lock);
+ os->os_upgrade_exit = B_TRUE;
+ if (os->os_upgrade_id != 0) {
+ taskqid_t id = os->os_upgrade_id;
+
+ os->os_upgrade_id = 0;
+ mutex_exit(&os->os_upgrade_lock);
+
+ 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(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);
/*
ASSERT(dn->dn_zio);
ASSERT3U(dn->dn_nlevels, <=, DN_MAX_LEVELS);
- list_remove(list, dn);
+ multilist_sublist_remove(list, dn);
- if (newlist) {
+ /*
+ * If we are not doing useraccounting (os_synced_dnodes == NULL)
+ * we are done with this dnode for this txg. Unset dn_dirty_txg
+ * if later txgs aren't dirtying it so that future holders do
+ * not get a stale value. Otherwise, we will do this in
+ * userquota_updates_task() when processing has completely
+ * finished for this txg.
+ */
+ multilist_t *newlist = dn->dn_objset->os_synced_dnodes;
+ if (newlist != NULL) {
(void) dnode_add_ref(dn, newlist);
- list_insert_tail(newlist, dn);
+ multilist_insert(newlist, dn);
+ } else {
+ mutex_enter(&dn->dn_mtx);
+ if (dn->dn_dirty_txg == tx->tx_txg)
+ dn->dn_dirty_txg = 0;
+ mutex_exit(&dn->dn_mtx);
}
dnode_sync(dn, tx);
static void
dmu_objset_write_ready(zio_t *zio, arc_buf_t *abuf, void *arg)
{
- int i;
-
blkptr_t *bp = zio->io_bp;
objset_t *os = arg;
dnode_phys_t *dnp = &os->os_phys->os_meta_dnode;
+ uint64_t fill = 0;
- ASSERT3P(bp, ==, os->os_rootbp);
+ ASSERT(!BP_IS_EMBEDDED(bp));
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 += dnp->dn_blkptr[i].blk_fill;
+ 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 */
(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_dnodes_arg {
+ multilist_t *sda_list;
+ int sda_sublist_idx;
+ multilist_t *sda_newlist;
+ dmu_tx_t *sda_tx;
+} sync_dnodes_arg_t;
+
+static void
+sync_dnodes_task(void *arg)
+{
+ sync_dnodes_arg_t *sda = arg;
+
+ multilist_sublist_t *ms =
+ multilist_sublist_lock(sda->sda_list, sda->sda_sublist_idx);
+
+ dmu_objset_sync_dnodes(ms, sda->sda_tx);
+
+ multilist_sublist_unlock(ms);
+
+ kmem_free(sda, sizeof (*sda));
+}
+
+
/* called from dsl */
void
dmu_objset_sync(objset_t *os, zio_t *pio, dmu_tx_t *tx)
{
int txgoff;
- zbookmark_t zb;
+ zbookmark_phys_t zb;
zio_prop_t zp;
zio_t *zio;
list_t *list;
- list_t *newlist = NULL;
dbuf_dirty_record_t *dr;
+ 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);
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),
- DMU_OS_IS_L2COMPRESSIBLE(os), &zp, dmu_objset_write_ready,
- dmu_objset_write_done, os, ZIO_PRIORITY_ASYNC_WRITE,
- ZIO_FLAG_MUSTSUCCEED, &zb);
+ blkptr_copy, os->os_phys_buf, DMU_OS_IS_L2CACHEABLE(os),
+ &zp, dmu_objset_write_ready, NULL, NULL, dmu_objset_write_done,
+ os, ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb);
/*
* Sync special dnodes - the parent IO for the sync is the root block
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;
+ if (dmu_objset_userused_enabled(os) &&
+ (!os->os_encrypted || !dmu_objset_is_receiving(os))) {
/*
* We must create the list here because it uses the
- * dn_dirty_link[] of this txg.
+ * dn_dirty_link[] of this txg. But it may already
+ * exist because we call dsl_dataset_sync() twice per txg.
*/
- list_create(newlist, sizeof (dnode_t),
- offsetof(dnode_t, dn_dirty_link[txgoff]));
+ if (os->os_synced_dnodes == NULL) {
+ os->os_synced_dnodes =
+ multilist_create(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);
+ for (int i = 0;
+ i < multilist_get_num_sublists(os->os_dirty_dnodes[txgoff]); i++) {
+ sync_dnodes_arg_t *sda = kmem_alloc(sizeof (*sda), KM_SLEEP);
+ sda->sda_list = os->os_dirty_dnodes[txgoff];
+ sda->sda_sublist_idx = i;
+ sda->sda_tx = tx;
+ (void) taskq_dispatch(dmu_objset_pool(os)->dp_sync_taskq,
+ sync_dnodes_task, sda, 0);
+ /* callback frees sda */
+ }
+ taskq_wait(dmu_objset_pool(os)->dp_sync_taskq);
list = &DMU_META_DNODE(os)->dn_dirty_records[txgoff];
- while ((dr = list_head(list))) {
+ while ((dr = list_head(list)) != NULL) {
ASSERT0(dr->dr_dbuf->db_level);
list_remove(list, dr);
if (dr->dr_zio)
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.
*/
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];
DMU_USERUSED_DNODE(os) != NULL);
}
+boolean_t
+dmu_objset_userobjused_enabled(objset_t *os)
+{
+ return (dmu_objset_userused_enabled(os) &&
+ spa_feature_is_enabled(os->os_spa, SPA_FEATURE_USEROBJ_ACCOUNTING));
+}
+
+boolean_t
+dmu_objset_projectquota_enabled(objset_t *os)
+{
+ return (used_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 (AVL_ISIGN(rv));
+}
+
+static void
+do_userquota_cacheflush(objset_t *os, userquota_cache_t *cache, dmu_tx_t *tx)
+{
+ 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, uint64_t used, uint64_t flags,
- uint64_t user, uint64_t group, boolean_t subtract, dmu_tx_t *tx)
+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_SIZE + used;
+ 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) sprintf(name, "%llx", (longlong_t)user);
+ userquota_update_cache(&cache->uqc_user_deltas, name, delta);
+
+ (void) sprintf(name, "%llx", (longlong_t)group);
+ userquota_update_cache(&cache->uqc_group_deltas, name, delta);
+
+ if (dmu_objset_projectquota_enabled(os)) {
+ (void) sprintf(name, "%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)
-{
- dnode_t *dn;
- list_t *list = &os->os_synced_dnodes;
+static void
+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);
+ userquota_update_cache(&cache->uqc_user_deltas, name, delta);
+
+ (void) snprintf(name, sizeof (name), DMU_OBJACCT_PREFIX "%llx",
+ (longlong_t)group);
+ 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);
+ }
+ }
+}
- ASSERT(list_head(list) == NULL || dmu_objset_userused_enabled(os));
+typedef struct userquota_updates_arg {
+ objset_t *uua_os;
+ int uua_sublist_idx;
+ dmu_tx_t *uua_tx;
+} userquota_updates_arg_t;
- while ((dn = list_head(list))) {
+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;
+ 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_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_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_CHKED_BONUS;
}
dn->dn_id_flags &= ~(DN_ID_NEW_EXIST);
+ if (dn->dn_dirty_txg == spa_syncing_txg(os->os_spa))
+ dn->dn_dirty_txg = 0;
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));
+}
+
+void
+dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx)
+{
+ if (!dmu_objset_userused_enabled(os))
+ return;
+
+ /*
+ * 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;
+
+ if (tx->tx_txg <= os->os_spa->spa_claim_max_txg)
+ return;
+
+ /* 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));
+ }
+
+ for (int i = 0;
+ i < multilist_get_num_sublists(os->os_synced_dnodes); 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;
+ /* note: caller does taskq_wait() */
+ (void) taskq_dispatch(dmu_objset_pool(os)->dp_sync_taskq,
+ userquota_updates_task, uua, 0);
+ /* callback frees uua */
}
}
objset_t *os = dn->dn_objset;
void *data = NULL;
dmu_buf_impl_t *db = NULL;
- uint64_t *user = NULL, *group = NULL;
+ uint64_t *user = NULL;
+ uint64_t *group = NULL;
+ uint64_t *project = 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;
ASSERT(data);
user = &dn->dn_olduid;
group = &dn->dn_oldgid;
+ project = &dn->dn_oldprojid;
} else if (data) {
user = &dn->dn_newuid;
group = &dn->dn_newgid;
+ project = &dn->dn_newprojid;
}
/*
* 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);
+ user, group, 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_USERACCOUNTING_COMPLETE);
}
-int
-dmu_objset_userspace_upgrade(objset_t *os)
+boolean_t
+dmu_objset_userobjspace_present(objset_t *os)
+{
+ return (os->os_phys->os_flags &
+ 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)
{
uint64_t obj;
int err = 0;
- if (dmu_objset_userspace_present(os))
- return (0);
- if (!dmu_objset_userused_enabled(os))
- return (ENOTSUP);
- if (dmu_objset_is_snapshot(os))
- return (EINVAL);
-
/*
* We simply need to mark every object dirty, so that it will be
* synced out and now accounted. If this is called
dmu_buf_t *db;
int objerr;
+ mutex_enter(&os->os_upgrade_lock);
+ if (os->os_upgrade_exit)
+ err = SET_ERROR(EINTR);
+ mutex_exit(&os->os_upgrade_lock);
+ if (err != 0)
+ return (err);
+
if (issig(JUSTLOOKING) && issig(FORREAL))
- return (EINTR);
+ return (SET_ERROR(EINTR));
objerr = dmu_bonus_hold(os, obj, FTAG, &db);
if (objerr != 0)
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;
}
dmu_buf_rele(db, FTAG);
dmu_tx_commit(tx);
}
+ return (0);
+}
+
+int
+dmu_objset_userspace_upgrade(objset_t *os)
+{
+ int err = 0;
+
+ if (dmu_objset_userspace_present(os))
+ return (0);
+ if (dmu_objset_is_snapshot(os))
+ return (SET_ERROR(EINVAL));
+ if (!dmu_objset_userused_enabled(os))
+ return (SET_ERROR(ENOTSUP));
+
+ err = dmu_objset_space_upgrade(os);
+ if (err)
+ return (err);
os->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE;
txg_wait_synced(dmu_objset_pool(os), 0);
return (0);
}
+static int
+dmu_objset_id_quota_upgrade_cb(objset_t *os)
+{
+ int err = 0;
+
+ 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))
+ 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[
+ 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;
+ 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_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)
+{
+ 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
dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp,
uint64_t *usedobjsp, uint64_t *availobjsp)
dmu_objset_is_snapshot(objset_t *os)
{
if (os->os_dsl_dataset != NULL)
- return (dsl_dataset_is_snapshot(os->os_dsl_dataset));
+ return (os->os_dsl_dataset->ds_is_snapshot);
else
return (B_FALSE);
}
dsl_dataset_t *ds = os->os_dsl_dataset;
uint64_t ignored;
- if (ds->ds_phys->ds_snapnames_zapobj == 0)
- return (ENOENT);
+ if (dsl_dataset_phys(ds)->ds_snapnames_zapobj == 0)
+ return (SET_ERROR(ENOENT));
return (zap_lookup_norm(ds->ds_dir->dd_pool->dp_meta_objset,
- ds->ds_phys->ds_snapnames_zapobj, name, 8, 1, &ignored, MT_FIRST,
- real, maxlen, conflict));
+ dsl_dataset_phys(ds)->ds_snapnames_zapobj, name, 8, 1, &ignored,
+ MT_NORMALIZE, real, maxlen, conflict));
}
int
ASSERT(dsl_pool_config_held(dmu_objset_pool(os)));
- if (ds->ds_phys->ds_snapnames_zapobj == 0)
- return (ENOENT);
+ if (dsl_dataset_phys(ds)->ds_snapnames_zapobj == 0)
+ return (SET_ERROR(ENOENT));
zap_cursor_init_serialized(&cursor,
ds->ds_dir->dd_pool->dp_meta_objset,
- ds->ds_phys->ds_snapnames_zapobj, *offp);
+ dsl_dataset_phys(ds)->ds_snapnames_zapobj, *offp);
if (zap_cursor_retrieve(&cursor, &attr) != 0) {
zap_cursor_fini(&cursor);
- return (ENOENT);
+ return (SET_ERROR(ENOENT));
}
if (strlen(attr.za_name) + 1 > namelen) {
zap_cursor_fini(&cursor);
- return (ENAMETOOLONG);
+ return (SET_ERROR(ENAMETOOLONG));
}
(void) strcpy(name, attr.za_name);
int
dmu_snapshot_lookup(objset_t *os, const char *name, uint64_t *value)
{
- return dsl_dataset_snap_lookup(os->os_dsl_dataset, name, value);
+ return (dsl_dataset_snap_lookup(os->os_dsl_dataset, name, value));
}
int
/* there is no next dir on a snapshot! */
if (os->os_dsl_dataset->ds_object !=
- dd->dd_phys->dd_head_dataset_obj)
- return (ENOENT);
+ dsl_dir_phys(dd)->dd_head_dataset_obj)
+ return (SET_ERROR(ENOENT));
zap_cursor_init_serialized(&cursor,
dd->dd_pool->dp_meta_objset,
- dd->dd_phys->dd_child_dir_zapobj, *offp);
+ dsl_dir_phys(dd)->dd_child_dir_zapobj, *offp);
if (zap_cursor_retrieve(&cursor, &attr) != 0) {
zap_cursor_fini(&cursor);
- return (ENOENT);
+ return (SET_ERROR(ENOENT));
}
if (strlen(attr.za_name) + 1 > namelen) {
zap_cursor_fini(&cursor);
- return (ENAMETOOLONG);
+ return (SET_ERROR(ENAMETOOLONG));
}
(void) strcpy(name, attr.za_name);
return (0);
}
-/*
- * Find objsets under and including ddobj, call func(ds) on each.
- */
-int
-dmu_objset_find_dp(dsl_pool_t *dp, uint64_t ddobj,
- int func(dsl_pool_t *, dsl_dataset_t *, void *), void *arg, int flags)
+typedef struct dmu_objset_find_ctx {
+ 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;
+ kmutex_t *dc_error_lock;
+ int *dc_error;
+} dmu_objset_find_ctx_t;
+
+static void
+dmu_objset_find_dp_impl(dmu_objset_find_ctx_t *dcp)
{
+ dsl_pool_t *dp = dcp->dc_dp;
dsl_dir_t *dd;
dsl_dataset_t *ds;
zap_cursor_t zc;
zap_attribute_t *attr;
uint64_t thisobj;
- int err;
+ int err = 0;
- ASSERT(dsl_pool_config_held(dp));
+ /* don't process if there already was an error */
+ if (*dcp->dc_error != 0)
+ goto out;
- err = dsl_dir_hold_obj(dp, 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)
- return (err);
+ goto out;
/* Don't visit hidden ($MOS & $ORIGIN) objsets. */
if (dd->dd_myname[0] == '$') {
dsl_dir_rele(dd, FTAG);
- return (0);
+ goto out;
}
- thisobj = dd->dd_phys->dd_head_dataset_obj;
+ thisobj = dsl_dir_phys(dd)->dd_head_dataset_obj;
attr = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP);
/*
* Iterate over all children.
*/
- if (flags & DS_FIND_CHILDREN) {
+ if (dcp->dc_flags & DS_FIND_CHILDREN) {
for (zap_cursor_init(&zc, dp->dp_meta_objset,
- dd->dd_phys->dd_child_dir_zapobj);
+ dsl_dir_phys(dd)->dd_child_dir_zapobj);
zap_cursor_retrieve(&zc, attr) == 0;
(void) zap_cursor_advance(&zc)) {
ASSERT3U(attr->za_integer_length, ==,
sizeof (uint64_t));
ASSERT3U(attr->za_num_integers, ==, 1);
- err = dmu_objset_find_dp(dp, attr->za_first_integer,
- func, arg, flags);
- if (err != 0)
- break;
+ 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);
+ else
+ dmu_objset_find_dp_impl(child_dcp);
}
zap_cursor_fini(&zc);
-
- if (err != 0) {
- dsl_dir_rele(dd, FTAG);
- kmem_free(attr, sizeof (zap_attribute_t));
- return (err);
- }
}
/*
* Iterate over all snapshots.
*/
- if (flags & DS_FIND_SNAPSHOTS) {
+ if (dcp->dc_flags & DS_FIND_SNAPSHOTS) {
dsl_dataset_t *ds;
err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds);
if (err == 0) {
- uint64_t snapobj = ds->ds_phys->ds_snapnames_zapobj;
+ uint64_t snapobj;
+
+ snapobj = dsl_dataset_phys(ds)->ds_snapnames_zapobj;
dsl_dataset_rele(ds, FTAG);
for (zap_cursor_init(&zc, dp->dp_meta_objset, snapobj);
attr->za_first_integer, FTAG, &ds);
if (err != 0)
break;
- err = func(dp, ds, arg);
+ err = dcp->dc_func(dp, ds, dcp->dc_arg);
dsl_dataset_rele(ds, FTAG);
if (err != 0)
break;
}
}
- dsl_dir_rele(dd, FTAG);
kmem_free(attr, sizeof (zap_attribute_t));
- if (err != 0)
- return (err);
+ 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)
- return (err);
- err = func(dp, ds, arg);
+ goto out;
+ err = dcp->dc_func(dp, ds, dcp->dc_arg);
dsl_dataset_rele(ds, FTAG);
- return (err);
+
+out:
+ if (err != 0) {
+ mutex_enter(dcp->dc_error_lock);
+ /* only keep first error */
+ if (*dcp->dc_error == 0)
+ *dcp->dc_error = err;
+ mutex_exit(dcp->dc_error_lock);
+ }
+
+ if (dcp->dc_ddname != NULL)
+ spa_strfree(dcp->dc_ddname);
+ kmem_free(dcp, sizeof (*dcp));
+}
+
+static void
+dmu_objset_find_dp_cb(void *arg)
+{
+ dmu_objset_find_ctx_t *dcp = arg;
+ dsl_pool_t *dp = dcp->dc_dp;
+
+ /*
+ * We need to get a pool_config_lock here, as there are several
+ * asssert(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.
+ * The _prio interface gives us priority over a pending writer.
+ */
+ dsl_pool_config_enter_prio(dp, FTAG);
+
+ dmu_objset_find_dp_impl(dcp);
+
+ dsl_pool_config_exit(dp, FTAG);
+}
+
+/*
+ * Find objsets under and including ddobj, call func(ds) on each.
+ * The order for the enumeration is completely undefined.
+ * func is called with dsl_pool_config held.
+ */
+int
+dmu_objset_find_dp(dsl_pool_t *dp, uint64_t ddobj,
+ int func(dsl_pool_t *, dsl_dataset_t *, void *), void *arg, int flags)
+{
+ int error = 0;
+ taskq_t *tq = NULL;
+ int ntasks;
+ dmu_objset_find_ctx_t *dcp;
+ kmutex_t err_lock;
+
+ mutex_init(&err_lock, NULL, MUTEX_DEFAULT, NULL);
+ dcp = kmem_alloc(sizeof (*dcp), KM_SLEEP);
+ 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;
+ dcp->dc_error_lock = &err_lock;
+ dcp->dc_error = &error;
+
+ if ((flags & DS_FIND_SERIALIZE) || dsl_pool_config_held_writer(dp)) {
+ /*
+ * In case a write lock is held we can't make use of
+ * parallelism, as down the stack of the worker threads
+ * the lock is asserted via dsl_pool_config_held.
+ * In case of a read lock this is solved by getting a read
+ * lock in each worker thread, which isn't possible in case
+ * of a writer lock. So we fall back to the synchronous path
+ * here.
+ * In the future it might be possible to get some magic into
+ * dsl_pool_config_held in a way that it returns true for
+ * the worker threads so that a single lock held from this
+ * thread suffices. For now, stay single threaded.
+ */
+ dmu_objset_find_dp_impl(dcp);
+ mutex_destroy(&err_lock);
+
+ return (error);
+ }
+
+ ntasks = dmu_find_threads;
+ if (ntasks == 0)
+ ntasks = vdev_count_leaves(dp->dp_spa) * 4;
+ tq = taskq_create("dmu_objset_find", ntasks, maxclsyspri, ntasks,
+ INT_MAX, 0);
+ if (tq == NULL) {
+ kmem_free(dcp, sizeof (*dcp));
+ mutex_destroy(&err_lock);
+
+ return (SET_ERROR(ENOMEM));
+ }
+ dcp->dc_tq = tq;
+
+ /* dcp will be freed by task */
+ (void) taskq_dispatch(tq, dmu_objset_find_dp_cb, dcp, TQ_SLEEP);
+
+ /*
+ * PORTING: this code relies on the property of taskq_wait to wait
+ * until no more tasks are queued and no more tasks are active. As
+ * we always queue new tasks from within other tasks, task_wait
+ * reliably waits for the full recursion to finish, even though we
+ * enqueue new tasks after taskq_wait has been called.
+ * On platforms other than illumos, taskq_wait may not have this
+ * property.
+ */
+ taskq_wait(tq);
+ taskq_destroy(tq);
+ mutex_destroy(&err_lock);
+
+ return (error);
}
/*
return (0);
}
- thisobj = dd->dd_phys->dd_head_dataset_obj;
- attr = kmem_alloc(sizeof (zap_attribute_t), KM_PUSHPAGE);
+ thisobj = dsl_dir_phys(dd)->dd_head_dataset_obj;
+ attr = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP);
/*
* Iterate over all children.
*/
if (flags & DS_FIND_CHILDREN) {
for (zap_cursor_init(&zc, dp->dp_meta_objset,
- dd->dd_phys->dd_child_dir_zapobj);
+ dsl_dir_phys(dd)->dd_child_dir_zapobj);
zap_cursor_retrieve(&zc, attr) == 0;
(void) zap_cursor_advance(&zc)) {
ASSERT3U(attr->za_integer_length, ==,
err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds);
if (err == 0) {
- uint64_t snapobj = ds->ds_phys->ds_snapnames_zapobj;
+ uint64_t snapobj;
+
+ snapobj = dsl_dataset_phys(ds)->ds_snapnames_zapobj;
dsl_dataset_rele(ds, FTAG);
for (zap_cursor_init(&zc, dp->dp_meta_objset, snapobj);
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)
{
/*
* Determine name of filesystem, given name of snapshot.
- * buf must be at least MAXNAMELEN bytes
+ * buf must be at least ZFS_MAX_DATASET_NAME_LEN bytes
*/
int
dmu_fsname(const char *snapname, char *buf)
{
char *atp = strchr(snapname, '@');
if (atp == NULL)
- return (EINVAL);
- if (atp - snapname >= MAXNAMELEN)
- return (ENAMETOOLONG);
+ return (SET_ERROR(EINVAL));
+ if (atp - snapname >= ZFS_MAX_DATASET_NAME_LEN)
+ return (SET_ERROR(ENAMETOOLONG));
(void) strlcpy(buf, snapname, atp - snapname + 1);
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.
+ */
+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_byteswap);
EXPORT_SYMBOL(dmu_objset_evict_dbufs);
EXPORT_SYMBOL(dmu_objset_snap_cmtime);
+EXPORT_SYMBOL(dmu_objset_dnodesize);
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_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_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