mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-18 02:20:59 +03:00
753c38392d
3104 eliminate empty bpobjs Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Christopher Siden <chris.siden@delphix.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Approved by: Eric Schrock <eric.schrock@delphix.com> References: illumos/illumos-gate@f174573681 illumos changeset: 13782:8f78aae28a63 https://www.illumos.org/issues/3104 Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
95 lines
2.8 KiB
C
95 lines
2.8 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) 2010, Oracle and/or its affiliates. All rights reserved.
|
|
* Copyright (c) 2012 by Delphix. All rights reserved.
|
|
*/
|
|
|
|
#ifndef _SYS_BPOBJ_H
|
|
#define _SYS_BPOBJ_H
|
|
|
|
#include <sys/dmu.h>
|
|
#include <sys/spa.h>
|
|
#include <sys/txg.h>
|
|
#include <sys/zio.h>
|
|
#include <sys/zfs_context.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef struct bpobj_phys {
|
|
/*
|
|
* This is the bonus buffer for the dead lists. The object's
|
|
* contents is an array of bpo_entries blkptr_t's, representing
|
|
* a total of bpo_bytes physical space.
|
|
*/
|
|
uint64_t bpo_num_blkptrs;
|
|
uint64_t bpo_bytes;
|
|
uint64_t bpo_comp;
|
|
uint64_t bpo_uncomp;
|
|
uint64_t bpo_subobjs;
|
|
uint64_t bpo_num_subobjs;
|
|
} bpobj_phys_t;
|
|
|
|
#define BPOBJ_SIZE_V0 (2 * sizeof (uint64_t))
|
|
#define BPOBJ_SIZE_V1 (4 * sizeof (uint64_t))
|
|
|
|
typedef struct bpobj {
|
|
kmutex_t bpo_lock;
|
|
objset_t *bpo_os;
|
|
uint64_t bpo_object;
|
|
int bpo_epb;
|
|
uint8_t bpo_havecomp;
|
|
uint8_t bpo_havesubobj;
|
|
bpobj_phys_t *bpo_phys;
|
|
dmu_buf_t *bpo_dbuf;
|
|
dmu_buf_t *bpo_cached_dbuf;
|
|
} bpobj_t;
|
|
|
|
typedef int bpobj_itor_t(void *arg, const blkptr_t *bp, dmu_tx_t *tx);
|
|
|
|
uint64_t bpobj_alloc(objset_t *mos, int blocksize, dmu_tx_t *tx);
|
|
uint64_t bpobj_alloc_empty(objset_t *os, int blocksize, dmu_tx_t *tx);
|
|
void bpobj_free(objset_t *os, uint64_t obj, dmu_tx_t *tx);
|
|
void bpobj_decr_empty(objset_t *os, dmu_tx_t *tx);
|
|
|
|
int bpobj_open(bpobj_t *bpo, objset_t *mos, uint64_t object);
|
|
void bpobj_close(bpobj_t *bpo);
|
|
|
|
int bpobj_iterate(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx);
|
|
int bpobj_iterate_nofree(bpobj_t *bpo, bpobj_itor_t func, void *, dmu_tx_t *);
|
|
int bpobj_iterate_dbg(bpobj_t *bpo, uint64_t *itorp, blkptr_t *bp);
|
|
|
|
void bpobj_enqueue_subobj(bpobj_t *bpo, uint64_t subobj, dmu_tx_t *tx);
|
|
void bpobj_enqueue(bpobj_t *bpo, const blkptr_t *bp, dmu_tx_t *tx);
|
|
|
|
int bpobj_space(bpobj_t *bpo,
|
|
uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
|
|
int bpobj_space_range(bpobj_t *bpo, uint64_t mintxg, uint64_t maxtxg,
|
|
uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _SYS_BPOBJ_H */
|