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 /* 22ea8dc4b6Seschrock * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #ifndef _SYS_SPA_IMPL_H 27fa9e4066Sahrens #define _SYS_SPA_IMPL_H 28fa9e4066Sahrens 29fa9e4066Sahrens #pragma ident "%Z%%M% %I% %E% SMI" 30fa9e4066Sahrens 31fa9e4066Sahrens #include <sys/spa.h> 32fa9e4066Sahrens #include <sys/vdev.h> 33fa9e4066Sahrens #include <sys/metaslab.h> 34fa9e4066Sahrens #include <sys/dmu.h> 35fa9e4066Sahrens #include <sys/dsl_pool.h> 36fa9e4066Sahrens #include <sys/uberblock_impl.h> 37fa9e4066Sahrens #include <sys/zfs_context.h> 38fa9e4066Sahrens #include <sys/avl.h> 39fa9e4066Sahrens #include <sys/refcount.h> 40fa9e4066Sahrens #include <sys/bplist.h> 41fa9e4066Sahrens 42fa9e4066Sahrens #ifdef __cplusplus 43fa9e4066Sahrens extern "C" { 44fa9e4066Sahrens #endif 45fa9e4066Sahrens 46fa9e4066Sahrens typedef struct spa_config_lock { 47fa9e4066Sahrens kmutex_t scl_lock; 48ea8dc4b6Seschrock refcount_t scl_count; 49fa9e4066Sahrens kthread_t *scl_writer; 50fa9e4066Sahrens kcondvar_t scl_cv; 51fa9e4066Sahrens } spa_config_lock_t; 52fa9e4066Sahrens 53ea8dc4b6Seschrock typedef struct spa_error_entry { 54ea8dc4b6Seschrock zbookmark_t se_bookmark; 55ea8dc4b6Seschrock char *se_name; 56ea8dc4b6Seschrock avl_node_t se_avl; 57ea8dc4b6Seschrock } spa_error_entry_t; 58ea8dc4b6Seschrock 59fa9e4066Sahrens struct spa { 60fa9e4066Sahrens /* 61fa9e4066Sahrens * Fields protected by spa_namespace_lock. 62fa9e4066Sahrens */ 63*0373e76bSbonwick char *spa_name; /* pool name */ 64*0373e76bSbonwick avl_node_t spa_avl; /* node in spa_namespace_avl */ 65*0373e76bSbonwick nvlist_t *spa_config; /* last synced config */ 66*0373e76bSbonwick nvlist_t *spa_config_syncing; /* currently syncing config */ 67fa9e4066Sahrens uint64_t spa_config_txg; /* txg of last config change */ 68fa9e4066Sahrens spa_config_lock_t spa_config_lock; /* configuration changes */ 69fa9e4066Sahrens kmutex_t spa_config_cache_lock; /* for spa_config RW_READER */ 70fa9e4066Sahrens int spa_sync_pass; /* iterate-to-convergence */ 71fa9e4066Sahrens int spa_state; /* pool state */ 72ea8dc4b6Seschrock int spa_inject_ref; /* injection references */ 73fa9e4066Sahrens uint8_t spa_traverse_wanted; /* traverse lock wanted */ 74ea8dc4b6Seschrock uint8_t spa_sync_on; /* sync threads are running */ 75ea8dc4b6Seschrock spa_load_state_t spa_load_state; /* current load operation */ 76fa9e4066Sahrens taskq_t *spa_zio_issue_taskq[ZIO_TYPES]; 77fa9e4066Sahrens taskq_t *spa_zio_intr_taskq[ZIO_TYPES]; 78fa9e4066Sahrens dsl_pool_t *spa_dsl_pool; 79fa9e4066Sahrens metaslab_class_t *spa_normal_class; /* normal data class */ 80fa9e4066Sahrens uint64_t spa_first_txg; /* first txg after spa_open() */ 81*0373e76bSbonwick uint64_t spa_final_txg; /* txg of export/destroy */ 82fa9e4066Sahrens uint64_t spa_freeze_txg; /* freeze pool at this txg */ 83fa9e4066Sahrens objset_t *spa_meta_objset; /* copy of dp->dp_meta_objset */ 84fa9e4066Sahrens txg_list_t spa_vdev_txg_list; /* per-txg dirty vdev list */ 85fa9e4066Sahrens vdev_t *spa_root_vdev; /* top-level vdev container */ 86fa9e4066Sahrens list_t spa_dirty_list; /* vdevs with dirty labels */ 87fa9e4066Sahrens uint64_t spa_config_object; /* MOS object for pool config */ 88fa9e4066Sahrens uint64_t spa_syncing_txg; /* txg currently syncing */ 89fa9e4066Sahrens uint64_t spa_sync_bplist_obj; /* object for deferred frees */ 90fa9e4066Sahrens bplist_t spa_sync_bplist; /* deferred-free bplist */ 91fa9e4066Sahrens krwlock_t spa_traverse_lock; /* traverse vs. spa_sync() */ 92fa9e4066Sahrens uberblock_t spa_ubsync; /* last synced uberblock */ 93fa9e4066Sahrens uberblock_t spa_uberblock; /* current uberblock */ 94fa9e4066Sahrens kmutex_t spa_scrub_lock; /* resilver/scrub lock */ 95fa9e4066Sahrens kthread_t *spa_scrub_thread; /* scrub/resilver thread */ 96fa9e4066Sahrens traverse_handle_t *spa_scrub_th; /* scrub traverse handle */ 97fa9e4066Sahrens uint64_t spa_scrub_restart_txg; /* need to restart */ 98ea8dc4b6Seschrock uint64_t spa_scrub_mintxg; /* min txg we'll scrub */ 99fa9e4066Sahrens uint64_t spa_scrub_maxtxg; /* max txg we'll scrub */ 100fa9e4066Sahrens uint64_t spa_scrub_inflight; /* in-flight scrub I/Os */ 101ea8dc4b6Seschrock int64_t spa_scrub_throttled; /* over-throttle scrub I/Os */ 102fa9e4066Sahrens uint64_t spa_scrub_errors; /* scrub I/O error count */ 103ea8dc4b6Seschrock int spa_scrub_suspended; /* tell scrubber to suspend */ 104fa9e4066Sahrens kcondvar_t spa_scrub_cv; /* scrub thread state change */ 105fa9e4066Sahrens kcondvar_t spa_scrub_io_cv; /* scrub I/O completion */ 106fa9e4066Sahrens uint8_t spa_scrub_stop; /* tell scrubber to stop */ 107fa9e4066Sahrens uint8_t spa_scrub_active; /* active or suspended? */ 108fa9e4066Sahrens uint8_t spa_scrub_type; /* type of scrub we're doing */ 109*0373e76bSbonwick uint8_t spa_scrub_finished; /* indicator to rotate logs */ 110ea8dc4b6Seschrock kmutex_t spa_async_lock; /* protect async state */ 111ea8dc4b6Seschrock kthread_t *spa_async_thread; /* thread doing async task */ 112ea8dc4b6Seschrock int spa_async_suspended; /* async tasks suspended */ 113ea8dc4b6Seschrock kcondvar_t spa_async_cv; /* wait for thread_exit() */ 114ea8dc4b6Seschrock uint16_t spa_async_tasks; /* async task mask */ 115fa9e4066Sahrens char *spa_root; /* alternate root directory */ 116fa9e4066Sahrens kmutex_t spa_uberblock_lock; /* vdev_uberblock_load_done() */ 117ea8dc4b6Seschrock uint64_t spa_ena; /* spa-wide ereport ENA */ 118ea8dc4b6Seschrock boolean_t spa_last_open_failed; /* true if last open faled */ 119ea8dc4b6Seschrock kmutex_t spa_errlog_lock; /* error log lock */ 120ea8dc4b6Seschrock uint64_t spa_errlog_last; /* last error log object */ 121ea8dc4b6Seschrock uint64_t spa_errlog_scrub; /* scrub error log object */ 122ea8dc4b6Seschrock kmutex_t spa_errlist_lock; /* error list/ereport lock */ 123ea8dc4b6Seschrock avl_tree_t spa_errlist_last; /* last error list */ 124ea8dc4b6Seschrock avl_tree_t spa_errlist_scrub; /* scrub error list */ 125fa9e4066Sahrens /* 126fa9e4066Sahrens * spa_refcnt must be the last element because it changes size based on 127fa9e4066Sahrens * compilation options. In order for the MDB module to function 128fa9e4066Sahrens * correctly, the other fields must remain in the same location. 129fa9e4066Sahrens */ 130fa9e4066Sahrens refcount_t spa_refcount; /* number of opens */ 131fa9e4066Sahrens }; 132fa9e4066Sahrens 133fa9e4066Sahrens extern const char *spa_config_dir; 134fa9e4066Sahrens extern kmutex_t spa_namespace_lock; 135fa9e4066Sahrens 136fa9e4066Sahrens #ifdef __cplusplus 137fa9e4066Sahrens } 138fa9e4066Sahrens #endif 139fa9e4066Sahrens 140fa9e4066Sahrens #endif /* _SYS_SPA_IMPL_H */ 141