1219089Spjd/* 2219089Spjd * CDDL HEADER START 3219089Spjd * 4219089Spjd * The contents of this file are subject to the terms of the 5219089Spjd * Common Development and Distribution License (the "License"). 6219089Spjd * You may not use this file except in compliance with the License. 7219089Spjd * 8219089Spjd * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9219089Spjd * or http://www.opensolaris.org/os/licensing. 10219089Spjd * See the License for the specific language governing permissions 11219089Spjd * and limitations under the License. 12219089Spjd * 13219089Spjd * When distributing Covered Code, include this CDDL HEADER in each 14219089Spjd * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15219089Spjd * If applicable, add the following below this CDDL HEADER, with the 16219089Spjd * fields enclosed by brackets "[]" replaced with your own identifying 17219089Spjd * information: Portions Copyright [yyyy] [name of copyright owner] 18219089Spjd * 19219089Spjd * CDDL HEADER END 20219089Spjd */ 21219089Spjd/* 22219089Spjd * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 23332525Smav * Copyright (c) 2012, 2015 by Delphix. All rights reserved. 24219089Spjd */ 25219089Spjd 26219089Spjd#ifndef _SYS_BPOBJ_H 27219089Spjd#define _SYS_BPOBJ_H 28219089Spjd 29219089Spjd#include <sys/dmu.h> 30219089Spjd#include <sys/spa.h> 31219089Spjd#include <sys/txg.h> 32219089Spjd#include <sys/zio.h> 33219089Spjd#include <sys/zfs_context.h> 34219089Spjd 35219089Spjd#ifdef __cplusplus 36219089Spjdextern "C" { 37219089Spjd#endif 38219089Spjd 39219089Spjdtypedef struct bpobj_phys { 40219089Spjd /* 41219089Spjd * This is the bonus buffer for the dead lists. The object's 42219089Spjd * contents is an array of bpo_entries blkptr_t's, representing 43219089Spjd * a total of bpo_bytes physical space. 44219089Spjd */ 45219089Spjd uint64_t bpo_num_blkptrs; 46219089Spjd uint64_t bpo_bytes; 47219089Spjd uint64_t bpo_comp; 48219089Spjd uint64_t bpo_uncomp; 49219089Spjd uint64_t bpo_subobjs; 50219089Spjd uint64_t bpo_num_subobjs; 51219089Spjd} bpobj_phys_t; 52219089Spjd 53219089Spjd#define BPOBJ_SIZE_V0 (2 * sizeof (uint64_t)) 54219089Spjd#define BPOBJ_SIZE_V1 (4 * sizeof (uint64_t)) 55219089Spjd 56219089Spjdtypedef struct bpobj { 57219089Spjd kmutex_t bpo_lock; 58219089Spjd objset_t *bpo_os; 59219089Spjd uint64_t bpo_object; 60219089Spjd int bpo_epb; 61219089Spjd uint8_t bpo_havecomp; 62219089Spjd uint8_t bpo_havesubobj; 63219089Spjd bpobj_phys_t *bpo_phys; 64219089Spjd dmu_buf_t *bpo_dbuf; 65219089Spjd dmu_buf_t *bpo_cached_dbuf; 66219089Spjd} bpobj_t; 67219089Spjd 68219089Spjdtypedef int bpobj_itor_t(void *arg, const blkptr_t *bp, dmu_tx_t *tx); 69219089Spjd 70219089Spjduint64_t bpobj_alloc(objset_t *mos, int blocksize, dmu_tx_t *tx); 71239774Smmuint64_t bpobj_alloc_empty(objset_t *os, int blocksize, dmu_tx_t *tx); 72219089Spjdvoid bpobj_free(objset_t *os, uint64_t obj, dmu_tx_t *tx); 73239774Smmvoid bpobj_decr_empty(objset_t *os, dmu_tx_t *tx); 74219089Spjd 75219089Spjdint bpobj_open(bpobj_t *bpo, objset_t *mos, uint64_t object); 76219089Spjdvoid bpobj_close(bpobj_t *bpo); 77332525Smavboolean_t bpobj_is_open(const bpobj_t *bpo); 78219089Spjd 79219089Spjdint bpobj_iterate(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx); 80219089Spjdint bpobj_iterate_nofree(bpobj_t *bpo, bpobj_itor_t func, void *, dmu_tx_t *); 81219089Spjd 82219089Spjdvoid bpobj_enqueue_subobj(bpobj_t *bpo, uint64_t subobj, dmu_tx_t *tx); 83219089Spjdvoid bpobj_enqueue(bpobj_t *bpo, const blkptr_t *bp, dmu_tx_t *tx); 84219089Spjd 85219089Spjdint bpobj_space(bpobj_t *bpo, 86219089Spjd uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); 87219089Spjdint bpobj_space_range(bpobj_t *bpo, uint64_t mintxg, uint64_t maxtxg, 88219089Spjd uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); 89332525Smavboolean_t bpobj_is_empty(bpobj_t *bpo); 90219089Spjd 91219089Spjd#ifdef __cplusplus 92219089Spjd} 93219089Spjd#endif 94219089Spjd 95219089Spjd#endif /* _SYS_BPOBJ_H */ 96