xref: /illumos-gate/usr/src/uts/common/fs/zfs/sys/spa_impl.h (revision dd50e0cc)
1fa9e4066Sahrens /*
2fa9e4066Sahrens  * CDDL HEADER START
3fa9e4066Sahrens  *
4fa9e4066Sahrens  * The contents of this file are subject to the terms of the
5ea8dc4b6Seschrock  * Common Development and Distribution License (the "License").
6ea8dc4b6Seschrock  * You may not use this file except in compliance with the License.
7fa9e4066Sahrens  *
8fa9e4066Sahrens  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9fa9e4066Sahrens  * or http://www.opensolaris.org/os/licensing.
10fa9e4066Sahrens  * See the License for the specific language governing permissions
11fa9e4066Sahrens  * and limitations under the License.
12fa9e4066Sahrens  *
13fa9e4066Sahrens  * When distributing Covered Code, include this CDDL HEADER in each
14fa9e4066Sahrens  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15fa9e4066Sahrens  * If applicable, add the following below this CDDL HEADER, with the
16fa9e4066Sahrens  * fields enclosed by brackets "[]" replaced with your own identifying
17fa9e4066Sahrens  * information: Portions Copyright [yyyy] [name of copyright owner]
18fa9e4066Sahrens  *
19fa9e4066Sahrens  * CDDL HEADER END
20fa9e4066Sahrens  */
21fa9e4066Sahrens /*
223f9d6ad7SLin Ling  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23814dcd43SSerapheim Dimitropoulos  * Copyright (c) 2011, 2019 by Delphix. All rights reserved.
24e9103aaeSGarrett D'Amore  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
25bc9014e6SJustin Gibbs  * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
2645818ee1SMatthew Ahrens  * Copyright 2013 Saso Kiselkov. All rights reserved.
271702cce7SAlek Pinchuk  * Copyright (c) 2017 Datto Inc.
28663207adSDon Brady  * Copyright (c) 2017, Intel Corporation.
29e830fb12SKody A Kantor  * Copyright 2019 Joyent, Inc.
30fa9e4066Sahrens  */
31fa9e4066Sahrens 
32fa9e4066Sahrens #ifndef _SYS_SPA_IMPL_H
33fa9e4066Sahrens #define	_SYS_SPA_IMPL_H
34fa9e4066Sahrens 
35fa9e4066Sahrens #include <sys/spa.h>
3686714001SSerapheim Dimitropoulos #include <sys/spa_checkpoint.h>
37814dcd43SSerapheim Dimitropoulos #include <sys/spa_log_spacemap.h>
38fa9e4066Sahrens #include <sys/vdev.h>
395cabbc6bSPrashanth Sreenivasa #include <sys/vdev_removal.h>
40fa9e4066Sahrens #include <sys/metaslab.h>
41fa9e4066Sahrens #include <sys/dmu.h>
42fa9e4066Sahrens #include <sys/dsl_pool.h>
43fa9e4066Sahrens #include <sys/uberblock_impl.h>
44fa9e4066Sahrens #include <sys/zfs_context.h>
45fa9e4066Sahrens #include <sys/avl.h>
46fa9e4066Sahrens #include <sys/refcount.h>
47fa9e4066Sahrens #include <sys/bplist.h>
48cde58dbcSMatthew Ahrens #include <sys/bpobj.h>
49eb633035STom Caputi #include <sys/dsl_crypt.h>
505d7b4d43SMatthew Ahrens #include <sys/zfeature.h>
51667ec66fSSerapheim Dimitropoulos #include <sys/zthr.h>
5243466aaeSMax Grossman #include <zfeature_common.h>
53fa9e4066Sahrens 
54fa9e4066Sahrens #ifdef	__cplusplus
55fa9e4066Sahrens extern "C" {
56fa9e4066Sahrens #endif
57fa9e4066Sahrens 
58ea8dc4b6Seschrock typedef struct spa_error_entry {
597802d7bfSMatthew Ahrens 	zbookmark_phys_t	se_bookmark;
607802d7bfSMatthew Ahrens 	char			*se_name;
617802d7bfSMatthew Ahrens 	avl_node_t		se_avl;
62ea8dc4b6Seschrock } spa_error_entry_t;
63ea8dc4b6Seschrock 
6406eeb2adSek typedef struct spa_history_phys {
6506eeb2adSek 	uint64_t sh_pool_create_len;	/* ending offset of zpool create */
6606eeb2adSek 	uint64_t sh_phys_max_off;	/* physical EOF */
6706eeb2adSek 	uint64_t sh_bof;		/* logical BOF */
6806eeb2adSek 	uint64_t sh_eof;		/* logical EOF */
6906eeb2adSek 	uint64_t sh_records_lost;	/* num of records overwritten */
7006eeb2adSek } spa_history_phys_t;
7106eeb2adSek 
725cabbc6bSPrashanth Sreenivasa /*
735cabbc6bSPrashanth Sreenivasa  * All members must be uint64_t, for byteswap purposes.
745cabbc6bSPrashanth Sreenivasa  */
755cabbc6bSPrashanth Sreenivasa typedef struct spa_removing_phys {
765cabbc6bSPrashanth Sreenivasa 	uint64_t sr_state; /* dsl_scan_state_t */
775cabbc6bSPrashanth Sreenivasa 
785cabbc6bSPrashanth Sreenivasa 	/*
795cabbc6bSPrashanth Sreenivasa 	 * The vdev ID that we most recently attempted to remove,
805cabbc6bSPrashanth Sreenivasa 	 * or -1 if no removal has been attempted.
815cabbc6bSPrashanth Sreenivasa 	 */
825cabbc6bSPrashanth Sreenivasa 	uint64_t sr_removing_vdev;
835cabbc6bSPrashanth Sreenivasa 
845cabbc6bSPrashanth Sreenivasa 	/*
855cabbc6bSPrashanth Sreenivasa 	 * The vdev ID that we most recently successfully removed,
865cabbc6bSPrashanth Sreenivasa 	 * or -1 if no devices have been removed.
875cabbc6bSPrashanth Sreenivasa 	 */
885cabbc6bSPrashanth Sreenivasa 	uint64_t sr_prev_indirect_vdev;
895cabbc6bSPrashanth Sreenivasa 
905cabbc6bSPrashanth Sreenivasa 	uint64_t sr_start_time;
915cabbc6bSPrashanth Sreenivasa 	uint64_t sr_end_time;
925cabbc6bSPrashanth Sreenivasa 
935cabbc6bSPrashanth Sreenivasa 	/*
945cabbc6bSPrashanth Sreenivasa 	 * Note that we can not use the space map's or indirect mapping's
955cabbc6bSPrashanth Sreenivasa 	 * accounting as a substitute for these values, because we need to
965cabbc6bSPrashanth Sreenivasa 	 * count frees of not-yet-copied data as though it did the copy.
975cabbc6bSPrashanth Sreenivasa 	 * Otherwise, we could get into a situation where copied > to_copy,
985cabbc6bSPrashanth Sreenivasa 	 * or we complete before copied == to_copy.
995cabbc6bSPrashanth Sreenivasa 	 */
1005cabbc6bSPrashanth Sreenivasa 	uint64_t sr_to_copy; /* bytes that need to be copied */
1015cabbc6bSPrashanth Sreenivasa 	uint64_t sr_copied; /* bytes that have been copied or freed */
1025cabbc6bSPrashanth Sreenivasa } spa_removing_phys_t;
1035cabbc6bSPrashanth Sreenivasa 
1045cabbc6bSPrashanth Sreenivasa /*
1055cabbc6bSPrashanth Sreenivasa  * This struct is stored as an entry in the DMU_POOL_DIRECTORY_OBJECT
1065cabbc6bSPrashanth Sreenivasa  * (with key DMU_POOL_CONDENSING_INDIRECT).  It is present if a condense
1075cabbc6bSPrashanth Sreenivasa  * of an indirect vdev's mapping object is in progress.
1085cabbc6bSPrashanth Sreenivasa  */
1095cabbc6bSPrashanth Sreenivasa typedef struct spa_condensing_indirect_phys {
1105cabbc6bSPrashanth Sreenivasa 	/*
1115cabbc6bSPrashanth Sreenivasa 	 * The vdev ID of the indirect vdev whose indirect mapping is
1125cabbc6bSPrashanth Sreenivasa 	 * being condensed.
1135cabbc6bSPrashanth Sreenivasa 	 */
1145cabbc6bSPrashanth Sreenivasa 	uint64_t	scip_vdev;
1155cabbc6bSPrashanth Sreenivasa 
1165cabbc6bSPrashanth Sreenivasa 	/*
1175cabbc6bSPrashanth Sreenivasa 	 * The vdev's old obsolete spacemap.  This spacemap's contents are
1185cabbc6bSPrashanth Sreenivasa 	 * being integrated into the new mapping.
1195cabbc6bSPrashanth Sreenivasa 	 */
1205cabbc6bSPrashanth Sreenivasa 	uint64_t	scip_prev_obsolete_sm_object;
1215cabbc6bSPrashanth Sreenivasa 
1225cabbc6bSPrashanth Sreenivasa 	/*
1235cabbc6bSPrashanth Sreenivasa 	 * The new mapping object that is being created.
1245cabbc6bSPrashanth Sreenivasa 	 */
1255cabbc6bSPrashanth Sreenivasa 	uint64_t	scip_next_mapping_object;
1265cabbc6bSPrashanth Sreenivasa } spa_condensing_indirect_phys_t;
1275cabbc6bSPrashanth Sreenivasa 
128fa94a07fSbrendan struct spa_aux_vdev {
129fa94a07fSbrendan 	uint64_t	sav_object;		/* MOS object for device list */
130fa94a07fSbrendan 	nvlist_t	*sav_config;		/* cached device config */
131fa94a07fSbrendan 	vdev_t		**sav_vdevs;		/* devices */
132fa94a07fSbrendan 	int		sav_count;		/* number devices */
133fa94a07fSbrendan 	boolean_t	sav_sync;		/* sync the device list */
134fa94a07fSbrendan 	nvlist_t	**sav_pending;		/* pending device additions */
135fa94a07fSbrendan 	uint_t		sav_npending;		/* # pending devices */
136fa94a07fSbrendan };
137fa94a07fSbrendan 
138e05725b1Sbonwick typedef struct spa_config_lock {
139e05725b1Sbonwick 	kmutex_t	scl_lock;
140e05725b1Sbonwick 	kthread_t	*scl_writer;
141e14bb325SJeff Bonwick 	int		scl_write_wanted;
142e05725b1Sbonwick 	kcondvar_t	scl_cv;
143e914ace2STim Schumacher 	zfs_refcount_t	scl_count;
144e05725b1Sbonwick } spa_config_lock_t;
145e05725b1Sbonwick 
146c5904d13Seschrock typedef struct spa_config_dirent {
147c5904d13Seschrock 	list_node_t	scd_link;
148c5904d13Seschrock 	char		*scd_path;
149c5904d13Seschrock } spa_config_dirent_t;
150c5904d13Seschrock 
151ec94d322SAdam Leventhal typedef enum zio_taskq_type {
152e14bb325SJeff Bonwick 	ZIO_TASKQ_ISSUE = 0,
15380eb36f2SGeorge Wilson 	ZIO_TASKQ_ISSUE_HIGH,
154e14bb325SJeff Bonwick 	ZIO_TASKQ_INTERRUPT,
15580eb36f2SGeorge Wilson 	ZIO_TASKQ_INTERRUPT_HIGH,
156e14bb325SJeff Bonwick 	ZIO_TASKQ_TYPES
157ec94d322SAdam Leventhal } zio_taskq_type_t;
158e14bb325SJeff Bonwick 
15935a5a358SJonathan Adams /*
160ec94d322SAdam Leventhal  * State machine for the zpool-poolname process.  The states transitions
16135a5a358SJonathan Adams  * are done as follows:
16235a5a358SJonathan Adams  *
16335a5a358SJonathan Adams  *	From		   To			Routine
16435a5a358SJonathan Adams  *	PROC_NONE	-> PROC_CREATED		spa_activate()
16535a5a358SJonathan Adams  *	PROC_CREATED	-> PROC_ACTIVE		spa_thread()
16635a5a358SJonathan Adams  *	PROC_ACTIVE	-> PROC_DEACTIVATE	spa_deactivate()
16735a5a358SJonathan Adams  *	PROC_DEACTIVATE	-> PROC_GONE		spa_thread()
16835a5a358SJonathan Adams  *	PROC_GONE	-> PROC_NONE		spa_deactivate()
16935a5a358SJonathan Adams  */
17035a5a358SJonathan Adams typedef enum spa_proc_state {
17135a5a358SJonathan Adams 	SPA_PROC_NONE,		/* spa_proc = &p0, no process created */
17235a5a358SJonathan Adams 	SPA_PROC_CREATED,	/* spa_activate() has proc, is waiting */
17335a5a358SJonathan Adams 	SPA_PROC_ACTIVE,	/* taskqs created, spa_proc set */
17435a5a358SJonathan Adams 	SPA_PROC_DEACTIVATE,	/* spa_deactivate() requests process exit */
17535a5a358SJonathan Adams 	SPA_PROC_GONE		/* spa_thread() is exiting, spa_proc = &p0 */
17635a5a358SJonathan Adams } spa_proc_state_t;
17735a5a358SJonathan Adams 
178ec94d322SAdam Leventhal typedef struct spa_taskqs {
179ec94d322SAdam Leventhal 	uint_t stqs_count;
180ec94d322SAdam Leventhal 	taskq_t **stqs_taskq;
181ec94d322SAdam Leventhal } spa_taskqs_t;
182ec94d322SAdam Leventhal 
183215198a6SJoe Stein typedef enum spa_all_vdev_zap_action {
184215198a6SJoe Stein 	AVZ_ACTION_NONE = 0,
185215198a6SJoe Stein 	AVZ_ACTION_DESTROY,	/* Destroy all per-vdev ZAPs and the AVZ. */
186555da511SPaul Dagnelie 	AVZ_ACTION_REBUILD,	/* Populate the new AVZ, see spa_avz_rebuild */
187555da511SPaul Dagnelie 	AVZ_ACTION_INITIALIZE
188215198a6SJoe Stein } spa_avz_action_t;
189215198a6SJoe Stein 
1906f793812SPavel Zakharov typedef enum spa_config_source {
1916f793812SPavel Zakharov 	SPA_CONFIG_SRC_NONE = 0,
1926f793812SPavel Zakharov 	SPA_CONFIG_SRC_SCAN,		/* scan of path (default: /dev/dsk) */
1936f793812SPavel Zakharov 	SPA_CONFIG_SRC_CACHEFILE,	/* any cachefile */
1946f793812SPavel Zakharov 	SPA_CONFIG_SRC_TRYIMPORT,	/* returned from call to tryimport */
1956f793812SPavel Zakharov 	SPA_CONFIG_SRC_SPLIT,		/* new pool in a pool split */
1966f793812SPavel Zakharov 	SPA_CONFIG_SRC_MOS		/* MOS, but not always from right txg */
1976f793812SPavel Zakharov } spa_config_source_t;
1986f793812SPavel Zakharov 
199fa9e4066Sahrens struct spa {
200fa9e4066Sahrens 	/*
201fa9e4066Sahrens 	 * Fields protected by spa_namespace_lock.
202fa9e4066Sahrens 	 */
2039adfa60dSMatthew Ahrens 	char		spa_name[ZFS_MAX_DATASET_NAME_LEN];	/* pool name */
2048704186eSDan McDonald 	char		*spa_comment;		/* comment */
2050373e76bSbonwick 	avl_node_t	spa_avl;		/* node in spa_namespace_avl */
2060373e76bSbonwick 	nvlist_t	*spa_config;		/* last synced config */
2070373e76bSbonwick 	nvlist_t	*spa_config_syncing;	/* currently syncing config */
2081195e687SMark J Musante 	nvlist_t	*spa_config_splitting;	/* config for splitting */
2094b964adaSGeorge Wilson 	nvlist_t	*spa_load_info;		/* info and errors from load */
210fa9e4066Sahrens 	uint64_t	spa_config_txg;		/* txg of last config change */
211fa9e4066Sahrens 	int		spa_sync_pass;		/* iterate-to-convergence */
21288b7b0f2SMatthew Ahrens 	pool_state_t	spa_state;		/* pool state */
213ea8dc4b6Seschrock 	int		spa_inject_ref;		/* injection references */
214ea8dc4b6Seschrock 	uint8_t		spa_sync_on;		/* sync threads are running */
215ea8dc4b6Seschrock 	spa_load_state_t spa_load_state;	/* current load operation */
2165cabbc6bSPrashanth Sreenivasa 	boolean_t	spa_indirect_vdevs_loaded; /* mappings loaded? */
2176f793812SPavel Zakharov 	boolean_t	spa_trust_config;	/* do we trust vdev tree? */
2186f793812SPavel Zakharov 	spa_config_source_t spa_config_source;	/* where config comes from? */
2194b964adaSGeorge Wilson 	uint64_t	spa_import_flags;	/* import specific flags */
220ec94d322SAdam Leventhal 	spa_taskqs_t	spa_zio_taskq[ZIO_TYPES][ZIO_TASKQ_TYPES];
221fa9e4066Sahrens 	dsl_pool_t	*spa_dsl_pool;
222ad135b5dSChristopher Siden 	boolean_t	spa_is_initializing;	/* true while opening pool */
223fa9e4066Sahrens 	metaslab_class_t *spa_normal_class;	/* normal data class */
2248654d025Sperrin 	metaslab_class_t *spa_log_class;	/* intent log data class */
225663207adSDon Brady 	metaslab_class_t *spa_special_class;	/* special allocation class */
226663207adSDon Brady 	metaslab_class_t *spa_dedup_class;	/* dedup allocation class */
227fa9e4066Sahrens 	uint64_t	spa_first_txg;		/* first txg after spa_open() */
2280373e76bSbonwick 	uint64_t	spa_final_txg;		/* txg of export/destroy */
229fa9e4066Sahrens 	uint64_t	spa_freeze_txg;		/* freeze pool at this txg */
230468c413aSTim Haley 	uint64_t	spa_load_max_txg;	/* best initial ub_txg */
231b24ab676SJeff Bonwick 	uint64_t	spa_claim_max_txg;	/* highest claimed birth txg */
23211027bc7STim Haley 	timespec_t	spa_loaded_ts;		/* 1st successful open time */
233fa9e4066Sahrens 	objset_t	*spa_meta_objset;	/* copy of dp->dp_meta_objset */
234bc9014e6SJustin Gibbs 	kmutex_t	spa_evicting_os_lock;	/* Evicting objset list lock */
235bc9014e6SJustin Gibbs 	list_t		spa_evicting_os_list;	/* Objsets being evicted. */
236bc9014e6SJustin Gibbs 	kcondvar_t	spa_evicting_os_cv;	/* Objset Eviction Completion */
237fa9e4066Sahrens 	txg_list_t	spa_vdev_txg_list;	/* per-txg dirty vdev list */
238fa9e4066Sahrens 	vdev_t		*spa_root_vdev;		/* top-level vdev container */
23981cd5c55SMatthew Ahrens 	int		spa_min_ashift;		/* of vdevs in normal class */
24081cd5c55SMatthew Ahrens 	int		spa_max_ashift;		/* of vdevs in normal class */
241e9103aaeSGarrett D'Amore 	uint64_t	spa_config_guid;	/* config pool guid */
242e9103aaeSGarrett D'Amore 	uint64_t	spa_load_guid;		/* spa_load initialized guid */
243dfbb9432SGeorge Wilson 	uint64_t	spa_last_synced_guid;	/* last synced guid */
244e14bb325SJeff Bonwick 	list_t		spa_config_dirty_list;	/* vdevs with dirty config */
245e14bb325SJeff Bonwick 	list_t		spa_state_dirty_list;	/* vdevs with dirty state */
246f78cdc34SPaul Dagnelie 	/*
247f78cdc34SPaul Dagnelie 	 * spa_alloc_locks and spa_alloc_trees are arrays, whose lengths are
248f78cdc34SPaul Dagnelie 	 * stored in spa_alloc_count. There is one tree and one lock for each
249f78cdc34SPaul Dagnelie 	 * allocator, to help improve allocation performance in write-heavy
250f78cdc34SPaul Dagnelie 	 * workloads.
251f78cdc34SPaul Dagnelie 	 */
252f78cdc34SPaul Dagnelie 	kmutex_t	*spa_alloc_locks;
253f78cdc34SPaul Dagnelie 	avl_tree_t	*spa_alloc_trees;
254f78cdc34SPaul Dagnelie 	int		spa_alloc_count;
255f78cdc34SPaul Dagnelie 
256fa94a07fSbrendan 	spa_aux_vdev_t	spa_spares;		/* hot spares */
257fa94a07fSbrendan 	spa_aux_vdev_t	spa_l2cache;		/* L2ARC cache devices */
258e830fb12SKody A Kantor 	hrtime_t	spa_spares_last_polled;	/* time spares last polled */
259ad135b5dSChristopher Siden 	nvlist_t	*spa_label_features;	/* Features for reading MOS */
260fa9e4066Sahrens 	uint64_t	spa_config_object;	/* MOS object for pool config */
2618f18d1faSGeorge Wilson 	uint64_t	spa_config_generation;	/* config generation number */
262fa9e4066Sahrens 	uint64_t	spa_syncing_txg;	/* txg currently syncing */
263cde58dbcSMatthew Ahrens 	bpobj_t		spa_deferred_bpobj;	/* deferred-free bplist */
264b24ab676SJeff Bonwick 	bplist_t	spa_free_bplist[TXG_SIZE]; /* bplist of stuff to free */
26545818ee1SMatthew Ahrens 	zio_cksum_salt_t spa_cksum_salt;	/* secret salt for cksum */
26645818ee1SMatthew Ahrens 	/* checksum context templates */
26745818ee1SMatthew Ahrens 	kmutex_t	spa_cksum_tmpls_lock;
26845818ee1SMatthew Ahrens 	void		*spa_cksum_tmpls[ZIO_CHECKSUM_FUNCTIONS];
269fa9e4066Sahrens 	uberblock_t	spa_ubsync;		/* last synced uberblock */
270fa9e4066Sahrens 	uberblock_t	spa_uberblock;		/* current uberblock */
271468c413aSTim Haley 	boolean_t	spa_extreme_rewind;	/* rewind past deferred frees */
272fa9e4066Sahrens 	kmutex_t	spa_scrub_lock;		/* resilver/scrub lock */
273a3874b8bSToomas Soome 	uint64_t	spa_scrub_inflight;	/* in-flight scrub bytes */
274a3874b8bSToomas Soome 	uint64_t	spa_load_verify_ios;	/* in-flight verification IOs */
275fa9e4066Sahrens 	kcondvar_t	spa_scrub_io_cv;	/* scrub I/O completion */
276fa9e4066Sahrens 	uint8_t		spa_scrub_active;	/* active or suspended? */
277fa9e4066Sahrens 	uint8_t		spa_scrub_type;		/* type of scrub we're doing */
2780373e76bSbonwick 	uint8_t		spa_scrub_finished;	/* indicator to rotate logs */
279088f3894Sahrens 	uint8_t		spa_scrub_started;	/* started since last boot */
280088f3894Sahrens 	uint8_t		spa_scrub_reopen;	/* scrub doing vdev_reopen */
2813f9d6ad7SLin Ling 	uint64_t	spa_scan_pass_start;	/* start time per pass/reboot */
2821702cce7SAlek Pinchuk 	uint64_t	spa_scan_pass_scrub_pause; /* scrub pause time */
2831702cce7SAlek Pinchuk 	uint64_t	spa_scan_pass_scrub_spent_paused; /* total paused */
2843f9d6ad7SLin Ling 	uint64_t	spa_scan_pass_exam;	/* examined bytes per pass */
285a3874b8bSToomas Soome 	uint64_t	spa_scan_pass_issued;	/* issued bytes per pass */
286e4c795beSTom Caputi 
287e4c795beSTom Caputi 	/*
288e4c795beSTom Caputi 	 * We are in the middle of a resilver, and another resilver
289e4c795beSTom Caputi 	 * is needed once this one completes. This is set iff any
290e4c795beSTom Caputi 	 * vdev_resilver_deferred is set.
291e4c795beSTom Caputi 	 */
292e4c795beSTom Caputi 	boolean_t	spa_resilver_deferred;
293ea8dc4b6Seschrock 	kmutex_t	spa_async_lock;		/* protect async state */
294ea8dc4b6Seschrock 	kthread_t	*spa_async_thread;	/* thread doing async task */
295ea8dc4b6Seschrock 	int		spa_async_suspended;	/* async tasks suspended */
296ea8dc4b6Seschrock 	kcondvar_t	spa_async_cv;		/* wait for thread_exit() */
297ea8dc4b6Seschrock 	uint16_t	spa_async_tasks;	/* async task mask */
2986f793812SPavel Zakharov 	uint64_t	spa_missing_tvds;	/* unopenable tvds on load */
2996f793812SPavel Zakharov 	uint64_t	spa_missing_tvds_allowed; /* allow loading spa? */
3005cabbc6bSPrashanth Sreenivasa 
3015cabbc6bSPrashanth Sreenivasa 	spa_removing_phys_t spa_removing_phys;
3025cabbc6bSPrashanth Sreenivasa 	spa_vdev_removal_t *spa_vdev_removal;
3035cabbc6bSPrashanth Sreenivasa 
3045cabbc6bSPrashanth Sreenivasa 	spa_condensing_indirect_phys_t	spa_condensing_indirect_phys;
3055cabbc6bSPrashanth Sreenivasa 	spa_condensing_indirect_t	*spa_condensing_indirect;
306667ec66fSSerapheim Dimitropoulos 	zthr_t		*spa_condense_zthr;	/* zthr doing condense. */
3075cabbc6bSPrashanth Sreenivasa 
30886714001SSerapheim Dimitropoulos 	uint64_t	spa_checkpoint_txg;	/* the txg of the checkpoint */
30986714001SSerapheim Dimitropoulos 	spa_checkpoint_info_t spa_checkpoint_info; /* checkpoint accounting */
31086714001SSerapheim Dimitropoulos 	zthr_t		*spa_checkpoint_discard_zthr;
31186714001SSerapheim Dimitropoulos 
312814dcd43SSerapheim Dimitropoulos 	space_map_t	*spa_syncing_log_sm;	/* current log space map */
313814dcd43SSerapheim Dimitropoulos 	avl_tree_t	spa_sm_logs_by_txg;
314814dcd43SSerapheim Dimitropoulos 	kmutex_t	spa_flushed_ms_lock;	/* for metaslabs_by_flushed */
315814dcd43SSerapheim Dimitropoulos 	avl_tree_t	spa_metaslabs_by_flushed;
316814dcd43SSerapheim Dimitropoulos 	spa_unflushed_stats_t	spa_unflushed_stats;
317814dcd43SSerapheim Dimitropoulos 	list_t		spa_log_summary;
318814dcd43SSerapheim Dimitropoulos 	uint64_t	spa_log_flushall_txg;
319814dcd43SSerapheim Dimitropoulos 
320fa9e4066Sahrens 	char		*spa_root;		/* alternate root directory */
321ea8dc4b6Seschrock 	uint64_t	spa_ena;		/* spa-wide ereport ENA */
322468c413aSTim Haley 	int		spa_last_open_failed;	/* error if last open failed */
323468c413aSTim Haley 	uint64_t	spa_last_ubsync_txg;	/* "best" uberblock txg */
324468c413aSTim Haley 	uint64_t	spa_last_ubsync_txg_ts;	/* timestamp from that ub */
325468c413aSTim Haley 	uint64_t	spa_load_txg;		/* ub txg that loaded */
326468c413aSTim Haley 	uint64_t	spa_load_txg_ts;	/* timestamp from that ub */
327468c413aSTim Haley 	uint64_t	spa_load_meta_errors;	/* verify metadata err count */
328468c413aSTim Haley 	uint64_t	spa_load_data_errors;	/* verify data err count */
329468c413aSTim Haley 	uint64_t	spa_verify_min_txg;	/* start txg of verify scrub */
330ea8dc4b6Seschrock 	kmutex_t	spa_errlog_lock;	/* error log lock */
331ea8dc4b6Seschrock 	uint64_t	spa_errlog_last;	/* last error log object */
332ea8dc4b6Seschrock 	uint64_t	spa_errlog_scrub;	/* scrub error log object */
333ea8dc4b6Seschrock 	kmutex_t	spa_errlist_lock;	/* error list/ereport lock */
334ea8dc4b6Seschrock 	avl_tree_t	spa_errlist_last;	/* last error list */
335ea8dc4b6Seschrock 	avl_tree_t	spa_errlist_scrub;	/* scrub error list */
33699653d4eSeschrock 	uint64_t	spa_deflate;		/* should we deflate? */
33706eeb2adSek 	uint64_t	spa_history;		/* history object */
33806eeb2adSek 	kmutex_t	spa_history_lock;	/* history lock */
33939c23413Seschrock 	vdev_t		*spa_pending_vdev;	/* pending vdev additions */
340b1b8ab34Slling 	kmutex_t	spa_props_lock;		/* property lock */
341b1b8ab34Slling 	uint64_t	spa_pool_props_object;	/* object for properties */
342b1b8ab34Slling 	uint64_t	spa_bootfs;		/* default boot filesystem */
343e14bb325SJeff Bonwick 	uint64_t	spa_failmode;		/* failure mode for the pool */
344e14bb325SJeff Bonwick 	uint64_t	spa_delegation;		/* delegation on/off */
345c5904d13Seschrock 	list_t		spa_config_list;	/* previous cache file(s) */
3466f834bc1SMatthew Ahrens 	/* per-CPU array of root of async I/O: */
3476f834bc1SMatthew Ahrens 	zio_t		**spa_async_zio_root;
348e14bb325SJeff Bonwick 	zio_t		*spa_suspend_zio_root;	/* root of all suspended I/O */
3495cabbc6bSPrashanth Sreenivasa 	zio_t		*spa_txg_zio[TXG_SIZE]; /* spa_sync() waits for this */
350e14bb325SJeff Bonwick 	kmutex_t	spa_suspend_lock;	/* protects suspend_zio_root */
351e14bb325SJeff Bonwick 	kcondvar_t	spa_suspend_cv;		/* notification of resume */
352e0f1c0afSOlaf Faaland 	zio_suspend_reason_t	spa_suspended;	/* pool is suspended */
353b24ab676SJeff Bonwick 	uint8_t		spa_claiming;		/* pool is doing zil_claim() */
354bf82a41bSeschrock 	boolean_t	spa_is_root;		/* pool is root */
355088f3894Sahrens 	int		spa_minref;		/* num refs when first opened */
3568ad4d6ddSJeff Bonwick 	int		spa_mode;		/* FREAD | FWRITE */
357b87f3af3Sperrin 	spa_log_state_t spa_log_state;		/* log state */
358573ca77eSGeorge Wilson 	uint64_t	spa_autoexpand;		/* lun expansion on/off */
3597855d95bSToomas Soome 	uint64_t	spa_bootsize;		/* efi system partition size */
360b24ab676SJeff Bonwick 	ddt_t		*spa_ddt[ZIO_CHECKSUM_FUNCTIONS]; /* in-core DDTs */
361b24ab676SJeff Bonwick 	uint64_t	spa_ddt_stat_object;	/* DDT statistics */
362b24ab676SJeff Bonwick 	uint64_t	spa_dedup_ditto;	/* dedup ditto threshold */
363b24ab676SJeff Bonwick 	uint64_t	spa_dedup_checksum;	/* default dedup checksum */
364485bbbf5SGeorge Wilson 	uint64_t	spa_dspace;		/* dspace in normal class */
365a1521560SJeff Bonwick 	kmutex_t	spa_vdev_top_lock;	/* dueling offline/remove */
36635a5a358SJonathan Adams 	kmutex_t	spa_proc_lock;		/* protects spa_proc* */
36735a5a358SJonathan Adams 	kcondvar_t	spa_proc_cv;		/* spa_proc_state transitions */
36835a5a358SJonathan Adams 	spa_proc_state_t spa_proc_state;	/* see definition */
36935a5a358SJonathan Adams 	struct proc	*spa_proc;		/* "zpool-poolname" process */
37035a5a358SJonathan Adams 	uint64_t	spa_did;		/* if procp != p0, did of t1 */
371b693757aSEric Schrock 	boolean_t	spa_autoreplace;	/* autoreplace set in open */
3728f18d1faSGeorge Wilson 	int		spa_vdev_locks;		/* locks grabbed */
3733f9d6ad7SLin Ling 	uint64_t	spa_creation_version;	/* version at pool creation */
374ad135b5dSChristopher Siden 	uint64_t	spa_prev_software_version; /* See ub_software_version */
375ad135b5dSChristopher Siden 	uint64_t	spa_feat_for_write_obj;	/* required to write to pool */
376ad135b5dSChristopher Siden 	uint64_t	spa_feat_for_read_obj;	/* required to read from pool */
377ad135b5dSChristopher Siden 	uint64_t	spa_feat_desc_obj;	/* Feature descriptions */
37843466aaeSMax Grossman 	uint64_t	spa_feat_enabled_txg_obj; /* Feature enabled txg */
37943466aaeSMax Grossman 	/* cache feature refcounts */
38043466aaeSMax Grossman 	uint64_t	spa_feat_refcount_cache[SPA_FEATURES];
381283b8460SGeorge.Wilson 	cyclic_id_t	spa_deadman_cycid;	/* cyclic id */
382283b8460SGeorge.Wilson 	uint64_t	spa_deadman_calls;	/* number of deadman calls */
38369962b56SMatthew Ahrens 	hrtime_t	spa_sync_starttime;	/* starting time fo spa_sync */
384283b8460SGeorge.Wilson 	uint64_t	spa_deadman_synctime;	/* deadman expiration timer */
385215198a6SJoe Stein 	uint64_t	spa_all_vdev_zaps;	/* ZAP of per-vd ZAP obj #s */
386215198a6SJoe Stein 	spa_avz_action_t	spa_avz_action;	/* destroy/rebuild AVZ? */
387084fd14fSBrian Behlendorf 	uint64_t	spa_autotrim;		/* automatic background trim? */
388eb633035STom Caputi 	spa_keystore_t	spa_keystore;	/* loaded crypto keys */
389eb633035STom Caputi 	uint64_t	spa_errata;	/* errata issues detected */
39069962b56SMatthew Ahrens 
39169962b56SMatthew Ahrens 	/*
39269962b56SMatthew Ahrens 	 * spa_iokstat_lock protects spa_iokstat and
39369962b56SMatthew Ahrens 	 * spa_queue_stats[].
39469962b56SMatthew Ahrens 	 */
39569962b56SMatthew Ahrens 	kmutex_t	spa_iokstat_lock;
396c3a66015SMatthew Ahrens 	struct kstat	*spa_iokstat;		/* kstat of io to this pool */
39769962b56SMatthew Ahrens 	struct {
39869962b56SMatthew Ahrens 		int spa_active;
39969962b56SMatthew Ahrens 		int spa_queued;
40069962b56SMatthew Ahrens 	} spa_queue_stats[ZIO_PRIORITY_NUM_QUEUEABLE];
40169962b56SMatthew Ahrens 
402*dd50e0ccSTony Hutter 	/*
403*dd50e0ccSTony Hutter 	 * The following two members diverge from OpenZFS. Upstream import
404*dd50e0ccSTony Hutter 	 * status is built around the Linux /proc fs. On illumos we use a kstat
405*dd50e0ccSTony Hutter 	 * to track import status. spa_imp_kstat_lock protects spa_imp_kstat.
406*dd50e0ccSTony Hutter 	 */
407*dd50e0ccSTony Hutter 	kmutex_t	spa_imp_kstat_lock;
408*dd50e0ccSTony Hutter 	struct kstat	*spa_imp_kstat;		/* kstat for import status */
409*dd50e0ccSTony Hutter 
410abe1fd01SDon Brady 	/* arc_memory_throttle() parameters during low memory condition */
411abe1fd01SDon Brady 	uint64_t	spa_lowmem_page_load;	/* memory load during txg */
412abe1fd01SDon Brady 	uint64_t	spa_lowmem_last_txg;	/* txg window start */
413abe1fd01SDon Brady 
4143cb69f73SWill Andrews 	hrtime_t	spa_ccw_fail_time;	/* Conf cache write fail time */
41569962b56SMatthew Ahrens 
416e0f1c0afSOlaf Faaland 	uint64_t	spa_multihost;		/* multihost aware (mmp) */
417e0f1c0afSOlaf Faaland 	mmp_thread_t	spa_mmp;		/* multihost mmp thread */
418e0f1c0afSOlaf Faaland 	list_t		spa_leaf_list;		/* list of leaf vdevs */
419e0f1c0afSOlaf Faaland 	uint64_t	spa_leaf_list_gen;	/* track leaf_list changes */
420e0f1c0afSOlaf Faaland 
421fa9e4066Sahrens 	/*
422f7170741SWill Andrews 	 * spa_refcount & spa_config_lock must be the last elements
42391ebeef5Sahrens 	 * because refcount_t changes size based on compilation options.
424e914ace2STim Schumacher 	 * because zfs_refcount_t changes size based on compilation options.
42591ebeef5Sahrens 	 * In order for the MDB module to function correctly, the other
42691ebeef5Sahrens 	 * fields must remain in the same location.
427fa9e4066Sahrens 	 */
428e14bb325SJeff Bonwick 	spa_config_lock_t spa_config_lock[SCL_LOCKS]; /* config changes */
429e914ace2STim Schumacher 	zfs_refcount_t	spa_refcount;		/* number of opens */
430f67950b2SNasf-Fan 
431f67950b2SNasf-Fan 	taskq_t		*spa_upgrade_taskq;	/* taskq for upgrade jobs */
432fa9e4066Sahrens };
433fa9e4066Sahrens 
434c5904d13Seschrock extern const char *spa_config_path;
435fa9e4066Sahrens 
436ec94d322SAdam Leventhal extern void spa_taskq_dispatch_ent(spa_t *spa, zio_type_t t, zio_taskq_type_t q,
437ec94d322SAdam Leventhal     task_func_t *func, void *arg, uint_t flags, taskq_ent_t *ent);
4385cabbc6bSPrashanth Sreenivasa extern void spa_load_spares(spa_t *spa);
4395cabbc6bSPrashanth Sreenivasa extern void spa_load_l2cache(spa_t *spa);
440ec94d322SAdam Leventhal 
441fa9e4066Sahrens #ifdef	__cplusplus
442fa9e4066Sahrens }
443fa9e4066Sahrens #endif
444fa9e4066Sahrens 
445fa9e4066Sahrens #endif	/* _SYS_SPA_IMPL_H */
446