diff options
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dsl_scan.h')
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dsl_scan.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dsl_scan.h b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dsl_scan.h new file mode 100644 index 0000000..c79666e --- /dev/null +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dsl_scan.h @@ -0,0 +1,108 @@ +/* + * 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) 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#ifndef _SYS_DSL_SCAN_H +#define _SYS_DSL_SCAN_H + +#include <sys/zfs_context.h> +#include <sys/zio.h> +#include <sys/ddt.h> +#include <sys/bplist.h> + +#ifdef __cplusplus +extern "C" { +#endif + +struct objset; +struct dsl_dir; +struct dsl_dataset; +struct dsl_pool; +struct dmu_tx; + +/* + * All members of this structure must be uint64_t, for byteswap + * purposes. + */ +typedef struct dsl_scan_phys { + uint64_t scn_func; /* pool_scan_func_t */ + uint64_t scn_state; /* dsl_scan_state_t */ + uint64_t scn_queue_obj; + uint64_t scn_min_txg; + uint64_t scn_max_txg; + uint64_t scn_cur_min_txg; + uint64_t scn_cur_max_txg; + uint64_t scn_start_time; + uint64_t scn_end_time; + uint64_t scn_to_examine; /* total bytes to be scanned */ + uint64_t scn_examined; /* bytes scanned so far */ + uint64_t scn_to_process; + uint64_t scn_processed; + uint64_t scn_errors; /* scan I/O error count */ + uint64_t scn_ddt_class_max; + ddt_bookmark_t scn_ddt_bookmark; + zbookmark_t scn_bookmark; + uint64_t scn_flags; /* dsl_scan_flags_t */ +} dsl_scan_phys_t; + +#define SCAN_PHYS_NUMINTS (sizeof (dsl_scan_phys_t) / sizeof (uint64_t)) + +typedef enum dsl_scan_flags { + DSF_VISIT_DS_AGAIN = 1<<0, +} dsl_scan_flags_t; + +typedef struct dsl_scan { + struct dsl_pool *scn_dp; + + boolean_t scn_pausing; + uint64_t scn_restart_txg; + uint64_t scn_sync_start_time; + zio_t *scn_zio_root; + + /* for debugging / information */ + uint64_t scn_visited_this_txg; + + dsl_scan_phys_t scn_phys; +} dsl_scan_t; + +int dsl_scan_init(struct dsl_pool *dp, uint64_t txg); +void dsl_scan_fini(struct dsl_pool *dp); +void dsl_scan_sync(struct dsl_pool *, dmu_tx_t *); +int dsl_scan_cancel(struct dsl_pool *); +int dsl_scan(struct dsl_pool *, pool_scan_func_t); +void dsl_resilver_restart(struct dsl_pool *, uint64_t txg); +boolean_t dsl_scan_resilvering(struct dsl_pool *dp); +boolean_t dsl_dataset_unstable(struct dsl_dataset *ds); +void dsl_scan_ddt_entry(dsl_scan_t *scn, enum zio_checksum checksum, + ddt_entry_t *dde, dmu_tx_t *tx); +void dsl_scan_ds_destroyed(struct dsl_dataset *ds, struct dmu_tx *tx); +void dsl_scan_ds_snapshotted(struct dsl_dataset *ds, struct dmu_tx *tx); +void dsl_scan_ds_clone_swapped(struct dsl_dataset *ds1, struct dsl_dataset *ds2, + struct dmu_tx *tx); +boolean_t dsl_scan_active(dsl_scan_t *scn); + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_DSL_SCAN_H */ |