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/* * 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. */ #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); void bpobj_free(objset_t *os, uint64_t obj, 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 */