1234285Sdim/* 2234285Sdim * CDDL HEADER START 3234285Sdim * 4234285Sdim * The contents of this file are subject to the terms of the 5234285Sdim * Common Development and Distribution License (the "License"). 6234285Sdim * You may not use this file except in compliance with the License. 7234285Sdim * 8234285Sdim * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9234285Sdim * or http://www.opensolaris.org/os/licensing. 10234285Sdim * See the License for the specific language governing permissions 11234285Sdim * and limitations under the License. 12234285Sdim * 13234285Sdim * When distributing Covered Code, include this CDDL HEADER in each 14234285Sdim * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15234285Sdim * If applicable, add the following below this CDDL HEADER, with the 16234285Sdim * fields enclosed by brackets "[]" replaced with your own identifying 17234285Sdim * information: Portions Copyright [yyyy] [name of copyright owner] 18249423Sdim * 19234285Sdim * CDDL HEADER END 20234285Sdim */ 21234285Sdim/* 22234285Sdim * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23234285Sdim * Use is subject to license terms. 24234285Sdim */ 25234285Sdim 26234285Sdim#ifndef _SYS_BPLIST_H 27234285Sdim#define _SYS_BPLIST_H 28234285Sdim 29234285Sdim#include <sys/dmu.h> 30234285Sdim#include <sys/spa.h> 31234285Sdim#include <sys/txg.h> 32234285Sdim#include <sys/zio.h> 33234285Sdim#include <sys/zfs_context.h> 34234285Sdim 35234285Sdim#ifdef __cplusplus 36234285Sdimextern "C" { 37234285Sdim#endif 38234285Sdim 39234285Sdimtypedef struct bplist_phys { 40234285Sdim /* 41234285Sdim * This is the bonus buffer for the dead lists. The object's 42234285Sdim * contents is an array of bpl_entries blkptr_t's, representing 43234285Sdim * a total of bpl_bytes physical space. 44234285Sdim */ 45234285Sdim uint64_t bpl_entries; 46234285Sdim uint64_t bpl_bytes; 47234285Sdim uint64_t bpl_comp; 48234285Sdim uint64_t bpl_uncomp; 49234285Sdim} bplist_phys_t; 50234285Sdim 51234285Sdim#define BPLIST_SIZE_V0 (2 * sizeof (uint64_t)) 52234285Sdim 53234285Sdimtypedef struct bplist_q { 54234285Sdim blkptr_t bpq_blk; 55234285Sdim void *bpq_next; 56234285Sdim} bplist_q_t; 57234285Sdim 58234285Sdimtypedef struct bplist { 59234285Sdim kmutex_t bpl_lock; 60234285Sdim objset_t *bpl_mos; 61234285Sdim uint64_t bpl_object; 62234285Sdim uint8_t bpl_blockshift; 63234285Sdim uint8_t bpl_bpshift; 64234285Sdim uint8_t bpl_havecomp; 65234285Sdim bplist_q_t *bpl_queue; 66234285Sdim bplist_phys_t *bpl_phys; 67 dmu_buf_t *bpl_dbuf; 68 dmu_buf_t *bpl_cached_dbuf; 69} bplist_t; 70 71typedef void bplist_sync_cb_t(void *arg, const blkptr_t *bp, dmu_tx_t *tx); 72 73extern void bplist_init(bplist_t *bpl); 74extern void bplist_fini(bplist_t *bpl); 75extern uint64_t bplist_create(objset_t *mos, int blocksize, dmu_tx_t *tx); 76extern void bplist_destroy(objset_t *mos, uint64_t object, dmu_tx_t *tx); 77extern int bplist_open(bplist_t *bpl, objset_t *mos, uint64_t object); 78extern void bplist_close(bplist_t *bpl); 79extern boolean_t bplist_empty(bplist_t *bpl); 80extern int bplist_iterate(bplist_t *bpl, uint64_t *itorp, blkptr_t *bp); 81extern int bplist_enqueue(bplist_t *bpl, const blkptr_t *bp, dmu_tx_t *tx); 82extern void bplist_enqueue_cb(void *bpl, const blkptr_t *bp, dmu_tx_t *tx); 83extern void bplist_enqueue_deferred(bplist_t *bpl, const blkptr_t *bp); 84extern void bplist_sync(bplist_t *bpl, bplist_sync_cb_t *func, 85 void *arg, dmu_tx_t *tx); 86extern void bplist_vacate(bplist_t *bpl, dmu_tx_t *tx); 87extern int bplist_space(bplist_t *bpl, 88 uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); 89extern int bplist_space_birthrange(bplist_t *bpl, 90 uint64_t mintxg, uint64_t maxtxg, uint64_t *dsizep); 91 92#ifdef __cplusplus 93} 94#endif 95 96#endif /* _SYS_BPLIST_H */ 97