cc99f275a2
Allocation Classes add the ability to have allocation classes in a pool that are dedicated to serving specific block categories, such as DDT data, metadata, and small file blocks. A pool can opt-in to this feature by adding a 'special' or 'dedup' top-level VDEV. Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com> Reviewed-by: Richard Laager <rlaager@wiktel.com> Reviewed-by: Alek Pinchuk <apinchuk@datto.com> Reviewed-by: Håkan Johansson <f96hajo@chalmers.se> Reviewed-by: Andreas Dilger <andreas.dilger@chamcloud.com> Reviewed-by: DHE <git@dehacked.net> Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed-by: Gregor Kopka <gregor@kopka.net> Reviewed-by: Kash Pande <kash@tripleback.net> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Don Brady <don.brady@delphix.com> Closes #5182
127 lines
4.5 KiB
C
127 lines
4.5 KiB
C
/*
|
|
* 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 *);
|
|
|
|
void metaslab_load_wait(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_fastwrite_mark(spa_t *, const blkptr_t *);
|
|
void metaslab_fastwrite_unmark(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 *);
|
|
|
|
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 */
|