diff options
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h')
| -rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h new file mode 100644 index 000000000000..285cee006778 --- /dev/null +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h @@ -0,0 +1,124 @@ +/* + * 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. + * Copyright (c) 2011, 2018 by Delphix. All rights reserved. + * Copyright (c) 2017, Intel Corporation. + */ + +#ifndef _SYS_METASLAB_H +#define _SYS_METASLAB_H + +#include <sys/spa.h> +#include <sys/space_map.h> +#include <sys/txg.h> +#include <sys/zio.h> +#include <sys/avl.h> + +#ifdef __cplusplus +extern "C" { +#endif + + +typedef struct metaslab_ops { + uint64_t (*msop_alloc)(metaslab_t *, uint64_t); +} metaslab_ops_t; + + +extern metaslab_ops_t *zfs_metaslab_ops; + +int metaslab_init(metaslab_group_t *, uint64_t, uint64_t, uint64_t, + metaslab_t **); +void metaslab_fini(metaslab_t *); + +int metaslab_load(metaslab_t *); +void metaslab_unload(metaslab_t *); + +void metaslab_sync(metaslab_t *, uint64_t); +void metaslab_sync_done(metaslab_t *, uint64_t); +void metaslab_sync_reassess(metaslab_group_t *); +uint64_t metaslab_block_maxsize(metaslab_t *); + +/* + * metaslab alloc flags + */ +#define METASLAB_HINTBP_FAVOR 0x0 +#define METASLAB_HINTBP_AVOID 0x1 +#define METASLAB_GANG_HEADER 0x2 +#define METASLAB_GANG_CHILD 0x4 +#define METASLAB_ASYNC_ALLOC 0x8 +#define METASLAB_DONT_THROTTLE 0x10 +#define METASLAB_MUST_RESERVE 0x20 +#define METASLAB_FASTWRITE 0x40 + +int metaslab_alloc(spa_t *, metaslab_class_t *, uint64_t, + blkptr_t *, int, uint64_t, blkptr_t *, int, zio_alloc_list_t *, zio_t *, + int); +int metaslab_alloc_dva(spa_t *, metaslab_class_t *, uint64_t, + dva_t *, int, dva_t *, uint64_t, int, zio_alloc_list_t *, int); +void metaslab_free(spa_t *, const blkptr_t *, uint64_t, boolean_t); +void metaslab_free_concrete(vdev_t *, uint64_t, uint64_t, boolean_t); +void metaslab_free_dva(spa_t *, const dva_t *, boolean_t); +void metaslab_free_impl_cb(uint64_t, vdev_t *, uint64_t, uint64_t, void *); +void metaslab_unalloc_dva(spa_t *, const dva_t *, uint64_t); +int metaslab_claim(spa_t *, const blkptr_t *, uint64_t); +int metaslab_claim_impl(vdev_t *, uint64_t, uint64_t, uint64_t); +void metaslab_check_free(spa_t *, const blkptr_t *); + +void metaslab_alloc_trace_init(void); +void metaslab_alloc_trace_fini(void); +void metaslab_trace_init(zio_alloc_list_t *); +void metaslab_trace_fini(zio_alloc_list_t *); + +metaslab_class_t *metaslab_class_create(spa_t *, metaslab_ops_t *); +void metaslab_class_destroy(metaslab_class_t *); +int metaslab_class_validate(metaslab_class_t *); +void metaslab_class_histogram_verify(metaslab_class_t *); +uint64_t metaslab_class_fragmentation(metaslab_class_t *); +uint64_t metaslab_class_expandable_space(metaslab_class_t *); +boolean_t metaslab_class_throttle_reserve(metaslab_class_t *, int, int, + zio_t *, int); +void metaslab_class_throttle_unreserve(metaslab_class_t *, int, int, zio_t *); + +uint64_t metaslab_class_get_alloc(metaslab_class_t *); +uint64_t metaslab_class_get_space(metaslab_class_t *); +uint64_t metaslab_class_get_dspace(metaslab_class_t *); +uint64_t metaslab_class_get_deferred(metaslab_class_t *); +uint64_t metaslab_class_get_minblocksize(metaslab_class_t *mc); + +metaslab_group_t *metaslab_group_create(metaslab_class_t *, vdev_t *, int); +void metaslab_group_destroy(metaslab_group_t *); +void metaslab_group_activate(metaslab_group_t *); +void metaslab_group_passivate(metaslab_group_t *); +boolean_t metaslab_group_initialized(metaslab_group_t *); +uint64_t metaslab_group_get_space(metaslab_group_t *); +void metaslab_group_histogram_verify(metaslab_group_t *); +uint64_t metaslab_group_fragmentation(metaslab_group_t *); +void metaslab_group_histogram_remove(metaslab_group_t *, metaslab_t *); +void metaslab_group_alloc_decrement(spa_t *, uint64_t, void *, int, int, + boolean_t); +void metaslab_group_alloc_verify(spa_t *, const blkptr_t *, void *, int); + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_METASLAB_H */ |