*
* 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, 2017 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.
*/
/* Portions Copyright 2010 Robert Milkowski */
#include <sys/vdev.h>
#include <sys/policy.h>
#include <sys/spa_impl.h>
+#include <sys/dmu_send.h>
/*
* Needed to close a window in dnode_move() that allows the objset to be freed
*/
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);
}
}
+/*
+ * 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));
+}
+
int
dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,
objset_t **osp)
if (!BP_IS_HOLE(os->os_rootbp)) {
arc_flags_t aflags = ARC_FLAG_WAIT;
zbookmark_phys_t zb;
+ 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_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 (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
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);
/* It's the meta-objset. */
os->os_checksum = ZIO_CHECKSUM_FLETCHER_4;
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 = B_FALSE;
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_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);
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, 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, void *tag, objset_t **osp)
+ boolean_t readonly, boolean_t decrypt, void *tag, objset_t **osp)
{
int err;
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));
}
- 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)) {
+ err = arc_untransform((*osp)->os_phys_buf, (*osp)->os_spa,
+ ds->ds_object, 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, 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, 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))
+ /* user accounting requires the dataset to be decrypted */
+ if (dmu_objset_userobjspace_upgradable(*osp) &&
+ (ds->ds_dir->dd_crypto_obj == 0 || decrypt))
dmu_objset_userobjspace_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, 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, tag, &ds);
+ 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, 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_rele(objset_t *os, 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(objset_t *os, boolean_t decrypt, void *tag)
{
dsl_pool_t *dp;
dsl_dataset_t *ds, *newds;
dsl_dataset_name(ds, name);
dp = dmu_objset_pool(os);
dsl_pool_config_enter(dp, FTAG);
- dmu_objset_disown(os, tag);
- VERIFY0(dsl_dataset_own(dp, name, tag, &newds));
+ dmu_objset_disown(os, decrypt, tag);
+ VERIFY0(dsl_dataset_own(dp, name,
+ (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0, tag, &newds));
VERIFY3P(newds, ==, os->os_dsl_dataset);
dsl_pool_config_exit(dp, FTAG);
}
void
-dmu_objset_disown(objset_t *os, void *tag)
+dmu_objset_disown(objset_t *os, boolean_t decrypt, void *tag)
{
/*
* Stop upgrading thread
*/
dmu_objset_upgrade_stop(os);
- dsl_dataset_disown(os->os_dsl_dataset, tag);
+ dsl_dataset_disown(os->os_dsl_dataset,
+ (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0, tag);
}
void
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
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));
}
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
* 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[
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*/
dsl_dir_rele(pdd, FTAG);
return (SET_ERROR(EEXIST));
}
+
+ error = dmu_objset_create_crypt_check(pdd, doca->doca_dcp);
+ 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);
+
dsl_dir_rele(pdd, FTAG);
return (error);
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);
+ 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(dp->dp_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);
+
+ rzio = zio_root(dp->dp_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)
+ 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, "");
zvol_create_minors(dp->dp_spa, doca->doca_name, B_TRUE);
- dsl_dataset_rele(ds, FTAG);
+ 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 inheritence 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, ZFS_SPACE_CHECK_NORMAL));
+ 6, ZFS_SPACE_CHECK_NORMAL));
}
typedef struct dmu_objset_clone_arg {
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));
}
+
+ error = dmu_objset_clone_crypt_check(pdd, origin->ds_dir);
+ if (error != 0) {
+ dsl_dataset_rele(origin, FTAG);
+ dsl_dir_rele(pdd, FTAG);
+ return (error);
+ }
+
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);
return (dsl_sync_task(clone,
dmu_objset_clone_check, dmu_objset_clone_sync, &doca,
- 5, ZFS_SPACE_CHECK_NORMAL));
+ 6, ZFS_SPACE_CHECK_NORMAL));
}
int
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 == TASKQID_INVALID)
+ 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);
}
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);
/*
ASSERT(dn->dn_zio);
ASSERT3U(dn->dn_nlevels, <=, DN_MAX_LEVELS);
- list_remove(list, dn);
+ multilist_sublist_remove(list, dn);
- if (newlist) {
+ 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);
}
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;
ASSERT(!BP_IS_EMBEDDED(bp));
- ASSERT3P(bp, ==, os->os_rootbp);
ASSERT3U(BP_GET_TYPE(bp), ==, DMU_OT_OBJSET);
ASSERT0(BP_GET_LEVEL(bp));
* objects that are stored in the objset_phys_t -- the meta
* dnode and user/group 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 */
(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)
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);
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 (arc_is_unauthenticated(os->os_phys_buf) || os->os_next_write_raw) {
+ ASSERT(os->os_encrypted);
+ os->os_next_write_raw = B_FALSE;
+ 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),
+ 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);
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)
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];
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);
}
}
-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;
userquota_cache_t cache = { { 0 } };
- ASSERT(list_head(list) == NULL || dmu_objset_userused_enabled(os));
+ 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));
- while ((dn = list_head(list))) {
+ 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) {
- 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));
- }
-
flags = dn->dn_id_flags;
ASSERT(flags);
if (flags & DN_ID_OLD_EXIST) {
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));
+}
+
+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 */
+ if (os->os_encrypted && dmu_objset_is_receiving(os))
+ return;
+
+ /* Allocate the user/groupused 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));
+ }
+
+ 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 */
+ }
}
/*
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;
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 (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
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;
sizeof (uint64_t));
ASSERT3U(attr->za_num_integers, ==, 1);
- child_dcp =
+ 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;
return (0);
}
+/*
+ * 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) && defined(HAVE_SPL)
EXPORT_SYMBOL(dmu_objset_zil);
EXPORT_SYMBOL(dmu_objset_pool);
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);
projects / mirror_zfs.git / blobdiff