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-rw-r--r--uts/common/fs/zfs/sys/dsl_pool.h151
1 files changed, 151 insertions, 0 deletions
diff --git a/uts/common/fs/zfs/sys/dsl_pool.h b/uts/common/fs/zfs/sys/dsl_pool.h
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+++ b/uts/common/fs/zfs/sys/dsl_pool.h
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+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * 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.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _SYS_DSL_POOL_H
+#define _SYS_DSL_POOL_H
+
+#include <sys/spa.h>
+#include <sys/txg.h>
+#include <sys/txg_impl.h>
+#include <sys/zfs_context.h>
+#include <sys/zio.h>
+#include <sys/dnode.h>
+#include <sys/ddt.h>
+#include <sys/arc.h>
+#include <sys/bpobj.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct objset;
+struct dsl_dir;
+struct dsl_dataset;
+struct dsl_pool;
+struct dmu_tx;
+struct dsl_scan;
+
+/* These macros are for indexing into the zfs_all_blkstats_t. */
+#define DMU_OT_DEFERRED DMU_OT_NONE
+#define DMU_OT_TOTAL DMU_OT_NUMTYPES
+
+typedef struct zfs_blkstat {
+ uint64_t zb_count;
+ uint64_t zb_asize;
+ uint64_t zb_lsize;
+ uint64_t zb_psize;
+ uint64_t zb_gangs;
+ uint64_t zb_ditto_2_of_2_samevdev;
+ uint64_t zb_ditto_2_of_3_samevdev;
+ uint64_t zb_ditto_3_of_3_samevdev;
+} zfs_blkstat_t;
+
+typedef struct zfs_all_blkstats {
+ zfs_blkstat_t zab_type[DN_MAX_LEVELS + 1][DMU_OT_TOTAL + 1];
+} zfs_all_blkstats_t;
+
+
+typedef struct dsl_pool {
+ /* Immutable */
+ spa_t *dp_spa;
+ struct objset *dp_meta_objset;
+ struct dsl_dir *dp_root_dir;
+ struct dsl_dir *dp_mos_dir;
+ struct dsl_dir *dp_free_dir;
+ struct dsl_dataset *dp_origin_snap;
+ uint64_t dp_root_dir_obj;
+ struct taskq *dp_vnrele_taskq;
+
+ /* No lock needed - sync context only */
+ blkptr_t dp_meta_rootbp;
+ list_t dp_synced_datasets;
+ hrtime_t dp_read_overhead;
+ uint64_t dp_throughput; /* bytes per millisec */
+ uint64_t dp_write_limit;
+ uint64_t dp_tmp_userrefs_obj;
+ bpobj_t dp_free_bpobj;
+
+ struct dsl_scan *dp_scan;
+
+ /* Uses dp_lock */
+ kmutex_t dp_lock;
+ uint64_t dp_space_towrite[TXG_SIZE];
+ uint64_t dp_tempreserved[TXG_SIZE];
+
+ /* Has its own locking */
+ tx_state_t dp_tx;
+ txg_list_t dp_dirty_datasets;
+ txg_list_t dp_dirty_dirs;
+ txg_list_t dp_sync_tasks;
+
+ /*
+ * Protects administrative changes (properties, namespace)
+ * It is only held for write in syncing context. Therefore
+ * syncing context does not need to ever have it for read, since
+ * nobody else could possibly have it for write.
+ */
+ krwlock_t dp_config_rwlock;
+
+ zfs_all_blkstats_t *dp_blkstats;
+} dsl_pool_t;
+
+int dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp);
+void dsl_pool_close(dsl_pool_t *dp);
+dsl_pool_t *dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg);
+void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg);
+void dsl_pool_sync_done(dsl_pool_t *dp, uint64_t txg);
+int dsl_pool_sync_context(dsl_pool_t *dp);
+uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree);
+uint64_t dsl_pool_adjustedfree(dsl_pool_t *dp, boolean_t netfree);
+int dsl_pool_tempreserve_space(dsl_pool_t *dp, uint64_t space, dmu_tx_t *tx);
+void dsl_pool_tempreserve_clear(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
+void dsl_pool_memory_pressure(dsl_pool_t *dp);
+void dsl_pool_willuse_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
+void dsl_free(dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp);
+void dsl_free_sync(zio_t *pio, dsl_pool_t *dp, uint64_t txg,
+ const blkptr_t *bpp);
+int dsl_read(zio_t *pio, spa_t *spa, const blkptr_t *bpp, arc_buf_t *pbuf,
+ arc_done_func_t *done, void *private, int priority, int zio_flags,
+ uint32_t *arc_flags, const zbookmark_t *zb);
+int dsl_read_nolock(zio_t *pio, spa_t *spa, const blkptr_t *bpp,
+ arc_done_func_t *done, void *private, int priority, int zio_flags,
+ uint32_t *arc_flags, const zbookmark_t *zb);
+void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx);
+void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx);
+void dsl_pool_upgrade_dir_clones(dsl_pool_t *dp, dmu_tx_t *tx);
+
+taskq_t *dsl_pool_vnrele_taskq(dsl_pool_t *dp);
+
+extern int dsl_pool_user_hold(dsl_pool_t *dp, uint64_t dsobj,
+ const char *tag, uint64_t *now, dmu_tx_t *tx);
+extern int dsl_pool_user_release(dsl_pool_t *dp, uint64_t dsobj,
+ const char *tag, dmu_tx_t *tx);
+extern void dsl_pool_clean_tmp_userrefs(dsl_pool_t *dp);
+int dsl_pool_open_special_dir(dsl_pool_t *dp, const char *name, dsl_dir_t **);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DSL_POOL_H */