*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012 by Delphix. All rights reserved.
+ * Copyright (c) 2011, 2018 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 Datto Inc.
+ * Copyright (c) 2017, Intel Corporation.
*/
#ifndef _SYS_SPA_IMPL_H
#define _SYS_SPA_IMPL_H
#include <sys/spa.h>
+#include <sys/spa_checkpoint.h>
#include <sys/vdev.h>
+#include <sys/vdev_removal.h>
#include <sys/metaslab.h>
#include <sys/dmu.h>
#include <sys/dsl_pool.h>
#include <sys/refcount.h>
#include <sys/bplist.h>
#include <sys/bpobj.h>
+#include <sys/dsl_crypt.h>
+#include <sys/zfeature.h>
+#include <sys/zthr.h>
+#include <zfeature_common.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct spa_error_entry {
- zbookmark_t se_bookmark;
- char *se_name;
- avl_node_t se_avl;
+ zbookmark_phys_t se_bookmark;
+ char *se_name;
+ avl_node_t se_avl;
} 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 */
kthread_t *scl_writer;
int scl_write_wanted;
kcondvar_t scl_cv;
- refcount_t scl_count;
+ zfs_refcount_t scl_count;
} spa_config_lock_t;
typedef struct spa_config_dirent {
taskq_t **stqs_taskq;
} spa_taskqs_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_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.
*/
- char spa_name[MAXNAMELEN]; /* pool name */
+ char spa_name[ZFS_MAX_DATASET_NAME_LEN]; /* pool name */
char *spa_comment; /* comment */
avl_node_t spa_avl; /* node in spa_namespace_avl */
nvlist_t *spa_config; /* last synced config */
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? */
+ 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 */
metaslab_class_t *spa_normal_class; /* normal data class */
metaslab_class_t *spa_log_class; /* intent log data class */
+ 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_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 */
+ /*
+ * spa_alloc_locks and spa_alloc_trees are arrays, whose lengths are
+ * stored in spa_alloc_count. There is one tree and one lock for each
+ * allocator, to help improve allocation performance in write-heavy
+ * workloads.
+ */
+ kmutex_t *spa_alloc_locks;
+ avl_tree_t *spa_alloc_trees;
+ int spa_alloc_count;
+
spa_aux_vdev_t spa_spares; /* hot spares */
spa_aux_vdev_t spa_l2cache; /* L2ARC cache devices */
nvlist_t *spa_label_features; /* Features for reading MOS */
uint64_t spa_syncing_txg; /* txg currently syncing */
bpobj_t spa_deferred_bpobj; /* deferred-free bplist */
bplist_t spa_free_bplist[TXG_SIZE]; /* bplist of stuff to free */
+ zio_cksum_salt_t spa_cksum_salt; /* secret salt for cksum */
+ /* checksum context templates */
+ kmutex_t spa_cksum_tmpls_lock;
+ void *spa_cksum_tmpls[ZIO_CHECKSUM_FUNCTIONS];
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 */
+ uint64_t spa_load_verify_ios; /* in-flight verification IOs */
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 */
+
+ /*
+ * 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? */
+
+ 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. */
+
+ 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;
+
char *spa_root; /* alternate root directory */
uint64_t spa_ena; /* spa-wide ereport ENA */
int spa_last_open_failed; /* error if last open failed */
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) */
- zio_t *spa_async_zio_root; /* root of all async I/O */
+ /* 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 */
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 */
uint64_t spa_feat_for_write_obj; /* required to write to pool */
uint64_t spa_feat_for_read_obj; /* required to read from pool */
uint64_t spa_feat_desc_obj; /* Feature descriptions */
+ uint64_t spa_feat_enabled_txg_obj; /* Feature enabled txg */
+ kmutex_t spa_feat_stats_lock; /* protects spa_feat_stats */
+ nvlist_t *spa_feat_stats; /* Cache of enabled features */
+ /* cache feature refcounts */
+ uint64_t spa_feat_refcount_cache[SPA_FEATURES];
taskqid_t spa_deadman_tqid; /* Task id */
uint64_t spa_deadman_calls; /* number of deadman calls */
- uint64_t spa_sync_starttime; /* starting time fo spa_sync */
- uint64_t spa_deadman_synctime; /* deadman expiration timer */
+ hrtime_t spa_sync_starttime; /* starting time of spa_sync */
+ 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_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_prefetch_taskq; /* Taskq for prefetch threads */
+ uint64_t spa_multihost; /* multihost aware (mmp) */
+ mmp_thread_t spa_mmp; /* multihost mmp thread */
+
/*
- * spa_refcnt & spa_config_lock must be the last elements
- * because refcount_t changes size based on compilation options.
+ * spa_refcount & spa_config_lock must be the last elements
+ * 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 */
+ zfs_refcount_t spa_refcount; /* number of opens */
+
+ taskq_t *spa_upgrade_taskq; /* taskq for upgrade jobs */
};
extern char *spa_config_path;
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);
+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);
+
#ifdef __cplusplus
}
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