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154 lines
4.5 KiB
C
154 lines
4.5 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#ifndef _SYS_DSL_POOL_H
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#define _SYS_DSL_POOL_H
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#include <sys/spa.h>
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#include <sys/txg.h>
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#include <sys/txg_impl.h>
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#include <sys/zfs_context.h>
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#include <sys/zio.h>
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#include <sys/dnode.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct objset;
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struct dsl_dir;
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struct dsl_dataset;
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struct dsl_pool;
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struct dmu_tx;
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enum scrub_func {
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SCRUB_FUNC_NONE,
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SCRUB_FUNC_CLEAN,
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SCRUB_FUNC_NUMFUNCS
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};
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/* These macros are for indexing into the zfs_all_blkstats_t. */
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#define DMU_OT_DEFERRED DMU_OT_NONE
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#define DMU_OT_TOTAL DMU_OT_NUMTYPES
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typedef struct zfs_blkstat {
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uint64_t zb_count;
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uint64_t zb_asize;
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uint64_t zb_lsize;
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uint64_t zb_psize;
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uint64_t zb_gangs;
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uint64_t zb_ditto_2_of_2_samevdev;
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uint64_t zb_ditto_2_of_3_samevdev;
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uint64_t zb_ditto_3_of_3_samevdev;
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} zfs_blkstat_t;
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typedef struct zfs_all_blkstats {
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zfs_blkstat_t zab_type[DN_MAX_LEVELS + 1][DMU_OT_TOTAL + 1];
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} zfs_all_blkstats_t;
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typedef struct dsl_pool {
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/* Immutable */
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spa_t *dp_spa;
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struct objset *dp_meta_objset;
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struct dsl_dir *dp_root_dir;
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struct dsl_dir *dp_mos_dir;
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struct dsl_dataset *dp_origin_snap;
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uint64_t dp_root_dir_obj;
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struct taskq *dp_vnrele_taskq;
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/* No lock needed - sync context only */
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blkptr_t dp_meta_rootbp;
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list_t dp_synced_datasets;
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hrtime_t dp_read_overhead;
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uint64_t dp_throughput;
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uint64_t dp_write_limit;
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/* Uses dp_lock */
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kmutex_t dp_lock;
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uint64_t dp_space_towrite[TXG_SIZE];
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uint64_t dp_tempreserved[TXG_SIZE];
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enum scrub_func dp_scrub_func;
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uint64_t dp_scrub_queue_obj;
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uint64_t dp_scrub_min_txg;
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uint64_t dp_scrub_max_txg;
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zbookmark_t dp_scrub_bookmark;
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boolean_t dp_scrub_pausing;
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boolean_t dp_scrub_isresilver;
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uint64_t dp_scrub_start_time;
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kmutex_t dp_scrub_cancel_lock; /* protects dp_scrub_restart */
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boolean_t dp_scrub_restart;
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/* Has its own locking */
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tx_state_t dp_tx;
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txg_list_t dp_dirty_datasets;
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txg_list_t dp_dirty_dirs;
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txg_list_t dp_sync_tasks;
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/*
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* Protects administrative changes (properties, namespace)
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* It is only held for write in syncing context. Therefore
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* syncing context does not need to ever have it for read, since
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* nobody else could possibly have it for write.
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*/
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krwlock_t dp_config_rwlock;
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zfs_all_blkstats_t *dp_blkstats;
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} dsl_pool_t;
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int dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp);
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void dsl_pool_close(dsl_pool_t *dp);
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dsl_pool_t *dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg);
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void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg);
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void dsl_pool_zil_clean(dsl_pool_t *dp);
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int dsl_pool_sync_context(dsl_pool_t *dp);
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uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree);
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int dsl_pool_tempreserve_space(dsl_pool_t *dp, uint64_t space, dmu_tx_t *tx);
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void dsl_pool_tempreserve_clear(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
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void dsl_pool_memory_pressure(dsl_pool_t *dp);
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void dsl_pool_willuse_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
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int dsl_free(zio_t *pio, dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp,
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zio_done_func_t *done, void *private, uint32_t arc_flags);
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void dsl_pool_ds_destroyed(struct dsl_dataset *ds, struct dmu_tx *tx);
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void dsl_pool_ds_snapshotted(struct dsl_dataset *ds, struct dmu_tx *tx);
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void dsl_pool_ds_clone_swapped(struct dsl_dataset *ds1, struct dsl_dataset *ds2,
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struct dmu_tx *tx);
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void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx);
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void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx);
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int dsl_pool_scrub_cancel(dsl_pool_t *dp);
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int dsl_pool_scrub_clean(dsl_pool_t *dp);
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void dsl_pool_scrub_sync(dsl_pool_t *dp, dmu_tx_t *tx);
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void dsl_pool_scrub_restart(dsl_pool_t *dp);
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taskq_t *dsl_pool_vnrele_taskq(dsl_pool_t *dp);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_DSL_POOL_H */
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