* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
+ * or https://opensource.org/licenses/CDDL-1.0.
* See the License for the specific language governing permissions
* and limitations under the License.
*
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
+ * Copyright (c) 2011, 2019 by Delphix. All rights reserved.
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
* Copyright 2013 Saso Kiselkov. All rights reserved.
* Copyright (c) 2016 Actifio, Inc. All rights reserved.
+ * Copyright (c) 2017, Intel Corporation.
+ * Copyright (c) 2019 Datto Inc.
*/
#ifndef _SYS_SPA_IMPL_H
#define _SYS_SPA_IMPL_H
#include <sys/spa.h>
+#include <sys/spa_checkpoint.h>
+#include <sys/spa_log_spacemap.h>
#include <sys/vdev.h>
+#include <sys/vdev_rebuild.h>
+#include <sys/vdev_removal.h>
+#include <sys/vdev_raidz.h>
#include <sys/metaslab.h>
#include <sys/dmu.h>
#include <sys/dsl_pool.h>
#include <sys/uberblock_impl.h>
#include <sys/zfs_context.h>
#include <sys/avl.h>
-#include <sys/refcount.h>
+#include <sys/zfs_refcount.h>
#include <sys/bplist.h>
#include <sys/bpobj.h>
+#include <sys/dsl_crypt.h>
#include <sys/zfeature.h>
+#include <sys/zthr.h>
+#include <sys/dsl_deadlist.h>
#include <zfeature_common.h>
#ifdef __cplusplus
extern "C" {
#endif
+typedef struct spa_alloc {
+ kmutex_t spaa_lock;
+ avl_tree_t spaa_tree;
+} ____cacheline_aligned spa_alloc_t;
+
typedef struct spa_error_entry {
zbookmark_phys_t se_bookmark;
char *se_name;
avl_node_t se_avl;
+ zbookmark_err_phys_t se_zep; /* not accounted in avl_find */
} spa_error_entry_t;
typedef struct spa_history_phys {
uint64_t sh_records_lost; /* num of records overwritten */
} spa_history_phys_t;
+/*
+ * All members must be uint64_t, for byteswap purposes.
+ */
+typedef struct spa_removing_phys {
+ uint64_t sr_state; /* dsl_scan_state_t */
+
+ /*
+ * The vdev ID that we most recently attempted to remove,
+ * or -1 if no removal has been attempted.
+ */
+ uint64_t sr_removing_vdev;
+
+ /*
+ * The vdev ID that we most recently successfully removed,
+ * or -1 if no devices have been removed.
+ */
+ uint64_t sr_prev_indirect_vdev;
+
+ uint64_t sr_start_time;
+ uint64_t sr_end_time;
+
+ /*
+ * Note that we can not use the space map's or indirect mapping's
+ * accounting as a substitute for these values, because we need to
+ * count frees of not-yet-copied data as though it did the copy.
+ * Otherwise, we could get into a situation where copied > to_copy,
+ * or we complete before copied == to_copy.
+ */
+ uint64_t sr_to_copy; /* bytes that need to be copied */
+ uint64_t sr_copied; /* bytes that have been copied or freed */
+} spa_removing_phys_t;
+
+/*
+ * This struct is stored as an entry in the DMU_POOL_DIRECTORY_OBJECT
+ * (with key DMU_POOL_CONDENSING_INDIRECT). It is present if a condense
+ * of an indirect vdev's mapping object is in progress.
+ */
+typedef struct spa_condensing_indirect_phys {
+ /*
+ * The vdev ID of the indirect vdev whose indirect mapping is
+ * being condensed.
+ */
+ uint64_t scip_vdev;
+
+ /*
+ * The vdev's old obsolete spacemap. This spacemap's contents are
+ * being integrated into the new mapping.
+ */
+ uint64_t scip_prev_obsolete_sm_object;
+
+ /*
+ * The new mapping object that is being created.
+ */
+ uint64_t scip_next_mapping_object;
+} spa_condensing_indirect_phys_t;
+
struct spa_aux_vdev {
uint64_t sav_object; /* MOS object for device list */
nvlist_t *sav_config; /* cached device config */
kmutex_t scl_lock;
kthread_t *scl_writer;
int scl_write_wanted;
+ int scl_count;
kcondvar_t scl_cv;
- refcount_t scl_count;
-} spa_config_lock_t;
+} ____cacheline_aligned spa_config_lock_t;
typedef struct spa_config_dirent {
list_node_t scd_link;
taskq_t **stqs_taskq;
} spa_taskqs_t;
+/* one for each thread in the spa sync taskq */
+typedef struct spa_syncthread_info {
+ kthread_t *sti_thread;
+ taskq_t *sti_wr_iss_tq; /* assigned wr_iss taskq */
+} spa_syncthread_info_t;
+
typedef enum spa_all_vdev_zap_action {
AVZ_ACTION_NONE = 0,
AVZ_ACTION_DESTROY, /* Destroy all per-vdev ZAPs and the AVZ. */
- AVZ_ACTION_REBUILD /* Populate the new AVZ, see spa_avz_rebuild */
+ AVZ_ACTION_REBUILD, /* Populate the new AVZ, see spa_avz_rebuild */
+ AVZ_ACTION_INITIALIZE
} spa_avz_action_t;
+typedef enum spa_config_source {
+ SPA_CONFIG_SRC_NONE = 0,
+ SPA_CONFIG_SRC_SCAN, /* scan of path (default: /dev/dsk) */
+ SPA_CONFIG_SRC_CACHEFILE, /* any cachefile */
+ SPA_CONFIG_SRC_TRYIMPORT, /* returned from call to tryimport */
+ SPA_CONFIG_SRC_SPLIT, /* new pool in a pool split */
+ SPA_CONFIG_SRC_MOS /* MOS, but not always from right txg */
+} spa_config_source_t;
+
struct spa {
/*
* Fields protected by spa_namespace_lock.
nvlist_t *spa_config_splitting; /* config for splitting */
nvlist_t *spa_load_info; /* info and errors from load */
uint64_t spa_config_txg; /* txg of last config change */
- int spa_sync_pass; /* iterate-to-convergence */
+ uint32_t spa_sync_pass; /* iterate-to-convergence */
pool_state_t spa_state; /* pool state */
int spa_inject_ref; /* injection references */
uint8_t spa_sync_on; /* sync threads are running */
spa_load_state_t spa_load_state; /* current load operation */
+ boolean_t spa_indirect_vdevs_loaded; /* mappings loaded? */
+ boolean_t spa_trust_config; /* do we trust vdev tree? */
+ boolean_t spa_is_splitting; /* in the middle of a split? */
+ spa_config_source_t spa_config_source; /* where config comes from? */
uint64_t spa_import_flags; /* import specific flags */
spa_taskqs_t spa_zio_taskq[ZIO_TYPES][ZIO_TASKQ_TYPES];
dsl_pool_t *spa_dsl_pool;
boolean_t spa_is_initializing; /* true while opening pool */
+ boolean_t spa_is_exporting; /* true while exporting pool */
metaslab_class_t *spa_normal_class; /* normal data class */
metaslab_class_t *spa_log_class; /* intent log data class */
+ metaslab_class_t *spa_embedded_log_class; /* log on normal vdevs */
+ metaslab_class_t *spa_special_class; /* special allocation class */
+ metaslab_class_t *spa_dedup_class; /* dedup allocation class */
uint64_t spa_first_txg; /* first txg after spa_open() */
uint64_t spa_final_txg; /* txg of export/destroy */
uint64_t spa_freeze_txg; /* freeze pool at this txg */
uint64_t spa_load_max_txg; /* best initial ub_txg */
uint64_t spa_claim_max_txg; /* highest claimed birth txg */
- timespec_t spa_loaded_ts; /* 1st successful open time */
+ inode_timespec_t spa_loaded_ts; /* 1st successful open time */
objset_t *spa_meta_objset; /* copy of dp->dp_meta_objset */
kmutex_t spa_evicting_os_lock; /* Evicting objset list lock */
list_t spa_evicting_os_list; /* Objsets being evicted. */
kcondvar_t spa_evicting_os_cv; /* Objset Eviction Completion */
txg_list_t spa_vdev_txg_list; /* per-txg dirty vdev list */
vdev_t *spa_root_vdev; /* top-level vdev container */
- int spa_min_ashift; /* of vdevs in normal class */
- int spa_max_ashift; /* of vdevs in normal class */
+ uint64_t spa_min_ashift; /* of vdevs in normal class */
+ uint64_t spa_max_ashift; /* of vdevs in normal class */
+ uint64_t spa_min_alloc; /* of vdevs in normal class */
+ uint64_t spa_gcd_alloc; /* of vdevs in normal class */
uint64_t spa_config_guid; /* config pool guid */
uint64_t spa_load_guid; /* spa_load initialized guid */
uint64_t spa_last_synced_guid; /* last synced guid */
list_t spa_config_dirty_list; /* vdevs with dirty config */
list_t spa_state_dirty_list; /* vdevs with dirty state */
- kmutex_t spa_alloc_lock;
- avl_tree_t spa_alloc_tree;
+ /*
+ * spa_allocs is an array, whose lengths is stored in spa_alloc_count.
+ * There is one tree and one lock for each allocator, to help improve
+ * allocation performance in write-heavy workloads.
+ */
+ spa_alloc_t *spa_allocs;
+ int spa_alloc_count;
+ int spa_active_allocator; /* selectable allocator */
+
+ /* per-allocator sync thread taskqs */
+ taskq_t *spa_sync_tq;
+ spa_syncthread_info_t *spa_syncthreads;
+
spa_aux_vdev_t spa_spares; /* hot spares */
spa_aux_vdev_t spa_l2cache; /* L2ARC cache devices */
+ boolean_t spa_aux_sync_uber; /* need to sync aux uber */
nvlist_t *spa_label_features; /* Features for reading MOS */
uint64_t spa_config_object; /* MOS object for pool config */
uint64_t spa_config_generation; /* config generation number */
uberblock_t spa_ubsync; /* last synced uberblock */
uberblock_t spa_uberblock; /* current uberblock */
boolean_t spa_extreme_rewind; /* rewind past deferred frees */
- uint64_t spa_last_io; /* lbolt of last non-scan I/O */
kmutex_t spa_scrub_lock; /* resilver/scrub lock */
- uint64_t spa_scrub_inflight; /* in-flight scrub I/Os */
+ uint64_t spa_scrub_inflight; /* in-flight scrub bytes */
+
+ /* in-flight verification bytes */
+ uint64_t spa_load_verify_bytes;
kcondvar_t spa_scrub_io_cv; /* scrub I/O completion */
uint8_t spa_scrub_active; /* active or suspended? */
uint8_t spa_scrub_type; /* type of scrub we're doing */
uint8_t spa_scrub_started; /* started since last boot */
uint8_t spa_scrub_reopen; /* scrub doing vdev_reopen */
uint64_t spa_scan_pass_start; /* start time per pass/reboot */
+ uint64_t spa_scan_pass_scrub_pause; /* scrub pause time */
+ uint64_t spa_scan_pass_scrub_spent_paused; /* total paused */
uint64_t spa_scan_pass_exam; /* examined bytes per pass */
+ uint64_t spa_scan_pass_issued; /* issued bytes per pass */
+
+ /* error scrub pause time in milliseconds */
+ uint64_t spa_scan_pass_errorscrub_pause;
+ /* total error scrub paused time in milliseconds */
+ uint64_t spa_scan_pass_errorscrub_spent_paused;
+ /*
+ * We are in the middle of a resilver, and another resilver
+ * is needed once this one completes. This is set iff any
+ * vdev_resilver_deferred is set.
+ */
+ boolean_t spa_resilver_deferred;
kmutex_t spa_async_lock; /* protect async state */
kthread_t *spa_async_thread; /* thread doing async task */
int spa_async_suspended; /* async tasks suspended */
kcondvar_t spa_async_cv; /* wait for thread_exit() */
uint16_t spa_async_tasks; /* async task mask */
+ uint64_t spa_missing_tvds; /* unopenable tvds on load */
+ uint64_t spa_missing_tvds_allowed; /* allow loading spa? */
+
+ uint64_t spa_nonallocating_dspace;
+ spa_removing_phys_t spa_removing_phys;
+ spa_vdev_removal_t *spa_vdev_removal;
+
+ spa_condensing_indirect_phys_t spa_condensing_indirect_phys;
+ spa_condensing_indirect_t *spa_condensing_indirect;
+ zthr_t *spa_condense_zthr; /* zthr doing condense. */
+
+ vdev_raidz_expand_t *spa_raidz_expand;
+ zthr_t *spa_raidz_expand_zthr;
+
+ uint64_t spa_checkpoint_txg; /* the txg of the checkpoint */
+ spa_checkpoint_info_t spa_checkpoint_info; /* checkpoint accounting */
+ zthr_t *spa_checkpoint_discard_zthr;
+
+ space_map_t *spa_syncing_log_sm; /* current log space map */
+ avl_tree_t spa_sm_logs_by_txg;
+ kmutex_t spa_flushed_ms_lock; /* for metaslabs_by_flushed */
+ avl_tree_t spa_metaslabs_by_flushed;
+ spa_unflushed_stats_t spa_unflushed_stats;
+ list_t spa_log_summary;
+ uint64_t spa_log_flushall_txg;
+
+ zthr_t *spa_livelist_delete_zthr; /* deleting livelists */
+ zthr_t *spa_livelist_condense_zthr; /* condensing livelists */
+ uint64_t spa_livelists_to_delete; /* set of livelists to free */
+ livelist_condense_entry_t spa_to_condense; /* next to condense */
+
char *spa_root; /* alternate root directory */
uint64_t spa_ena; /* spa-wide ereport ENA */
int spa_last_open_failed; /* error if last open failed */
kmutex_t spa_errlist_lock; /* error list/ereport lock */
avl_tree_t spa_errlist_last; /* last error list */
avl_tree_t spa_errlist_scrub; /* scrub error list */
+ avl_tree_t spa_errlist_healed; /* list of healed blocks */
uint64_t spa_deflate; /* should we deflate? */
uint64_t spa_history; /* history object */
kmutex_t spa_history_lock; /* history lock */
uint64_t spa_pool_props_object; /* object for properties */
uint64_t spa_bootfs; /* default boot filesystem */
uint64_t spa_failmode; /* failure mode for the pool */
+ uint64_t spa_deadman_failmode; /* failure mode for deadman */
uint64_t spa_delegation; /* delegation on/off */
list_t spa_config_list; /* previous cache file(s) */
/* per-CPU array of root of async I/O: */
zio_t **spa_async_zio_root;
zio_t *spa_suspend_zio_root; /* root of all suspended I/O */
+ zio_t *spa_txg_zio[TXG_SIZE]; /* spa_sync() waits for this */
kmutex_t spa_suspend_lock; /* protects suspend_zio_root */
kcondvar_t spa_suspend_cv; /* notification of resume */
- uint8_t spa_suspended; /* pool is suspended */
+ zio_suspend_reason_t spa_suspended; /* pool is suspended */
uint8_t spa_claiming; /* pool is doing zil_claim() */
- boolean_t spa_debug; /* debug enabled? */
boolean_t spa_is_root; /* pool is root */
int spa_minref; /* num refs when first opened */
- int spa_mode; /* FREAD | FWRITE */
+ spa_mode_t spa_mode; /* SPA_MODE_{READ|WRITE} */
+ boolean_t spa_read_spacemaps; /* spacemaps available if ro */
spa_log_state_t spa_log_state; /* log state */
uint64_t spa_autoexpand; /* lun expansion on/off */
ddt_t *spa_ddt[ZIO_CHECKSUM_FUNCTIONS]; /* in-core DDTs */
uint64_t spa_ddt_stat_object; /* DDT statistics */
uint64_t spa_dedup_dspace; /* Cache get_dedup_dspace() */
- uint64_t spa_dedup_ditto; /* dedup ditto threshold */
uint64_t spa_dedup_checksum; /* default dedup checksum */
uint64_t spa_dspace; /* dspace in normal class */
+ struct brt *spa_brt; /* in-core BRT */
kmutex_t spa_vdev_top_lock; /* dueling offline/remove */
kmutex_t spa_proc_lock; /* protects spa_proc* */
kcondvar_t spa_proc_cv; /* spa_proc_state transitions */
spa_proc_state_t spa_proc_state; /* see definition */
proc_t *spa_proc; /* "zpool-poolname" process */
- uint64_t spa_did; /* if procp != p0, did of t1 */
+ uintptr_t spa_did; /* if procp != p0, did of t1 */
boolean_t spa_autoreplace; /* autoreplace set in open */
int spa_vdev_locks; /* locks grabbed */
uint64_t spa_creation_version; /* version at pool creation */
taskqid_t spa_deadman_tqid; /* Task id */
uint64_t spa_deadman_calls; /* number of deadman calls */
hrtime_t spa_sync_starttime; /* starting time of spa_sync */
- uint64_t spa_deadman_synctime; /* deadman expiration timer */
+ uint64_t spa_deadman_synctime; /* deadman sync expiration */
+ uint64_t spa_deadman_ziotime; /* deadman zio expiration */
uint64_t spa_all_vdev_zaps; /* ZAP of per-vd ZAP obj #s */
spa_avz_action_t spa_avz_action; /* destroy/rebuild AVZ? */
+ uint64_t spa_autotrim; /* automatic background trim? */
uint64_t spa_errata; /* errata issues detected */
spa_stats_t spa_stats; /* assorted spa statistics */
+ spa_keystore_t spa_keystore; /* loaded crypto keys */
+
+ /* arc_memory_throttle() parameters during low memory condition */
+ uint64_t spa_lowmem_page_load; /* memory load during txg */
+ uint64_t spa_lowmem_last_txg; /* txg window start */
+
hrtime_t spa_ccw_fail_time; /* Conf cache write fail time */
taskq_t *spa_zvol_taskq; /* Taskq for minor management */
+ taskq_t *spa_metaslab_taskq; /* Taskq for metaslab preload */
+ taskq_t *spa_prefetch_taskq; /* Taskq for prefetch threads */
+ taskq_t *spa_upgrade_taskq; /* Taskq for upgrade jobs */
+ uint64_t spa_multihost; /* multihost aware (mmp) */
+ mmp_thread_t spa_mmp; /* multihost mmp thread */
+ list_t spa_leaf_list; /* list of leaf vdevs */
+ uint64_t spa_leaf_list_gen; /* track leaf_list changes */
+ uint32_t spa_hostid; /* cached system hostid */
+
+ /* synchronization for threads in spa_wait */
+ kmutex_t spa_activities_lock;
+ kcondvar_t spa_activities_cv;
+ kcondvar_t spa_waiters_cv;
+ int spa_waiters; /* number of waiting threads */
+ boolean_t spa_waiters_cancel; /* waiters should return */
+
+ char *spa_compatibility; /* compatibility file(s) */
/*
* spa_refcount & spa_config_lock must be the last elements
- * because refcount_t changes size based on compilation options.
+ * because zfs_refcount_t changes size based on compilation options.
* In order for the MDB module to function correctly, the other
* fields must remain in the same location.
*/
spa_config_lock_t spa_config_lock[SCL_LOCKS]; /* config changes */
- refcount_t spa_refcount; /* number of opens */
-
- taskq_t *spa_upgrade_taskq; /* taskq for upgrade jobs */
+ zfs_refcount_t spa_refcount; /* number of opens */
};
extern char *spa_config_path;
-
+extern const char *zfs_deadman_failmode;
+extern uint_t spa_slop_shift;
extern void spa_taskq_dispatch_ent(spa_t *spa, zio_type_t t, zio_taskq_type_t q,
- task_func_t *func, void *arg, uint_t flags, taskq_ent_t *ent);
+ task_func_t *func, void *arg, uint_t flags, taskq_ent_t *ent, zio_t *zio);
extern void spa_taskq_dispatch_sync(spa_t *, zio_type_t t, zio_taskq_type_t q,
task_func_t *func, void *arg, uint_t flags);
-
+extern void spa_load_spares(spa_t *spa);
+extern void spa_load_l2cache(spa_t *spa);
+extern sysevent_t *spa_event_create(spa_t *spa, vdev_t *vd, nvlist_t *hist_nvl,
+ const char *name);
+extern void spa_event_post(sysevent_t *ev);
+extern int param_set_deadman_failmode_common(const char *val);
+extern void spa_set_deadman_synctime(hrtime_t ns);
+extern void spa_set_deadman_ziotime(hrtime_t ns);
+extern const char *spa_history_zone(void);
+extern const char *zfs_active_allocator;
+extern int param_set_active_allocator_common(const char *val);
#ifdef __cplusplus
}
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