1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_BPLIST_H 27 #define _SYS_BPLIST_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <sys/dmu.h> 32 #include <sys/spa.h> 33 #include <sys/txg.h> 34 #include <sys/zfs_context.h> 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 typedef struct bplist_phys { 41 /* 42 * This is the bonus buffer for the dead lists. The object's 43 * contents is an array of bpl_entries blkptr_t's, representing 44 * a total of bpl_bytes physical space. 45 */ 46 uint64_t bpl_entries; 47 uint64_t bpl_bytes; 48 } bplist_phys_t; 49 50 typedef struct bplist_q { 51 blkptr_t bpq_blk; 52 void *bpq_next; 53 } bplist_q_t; 54 55 typedef struct bplist { 56 kmutex_t bpl_lock; 57 objset_t *bpl_mos; 58 uint64_t bpl_object; 59 int bpl_blockshift; 60 int bpl_bpshift; 61 bplist_q_t *bpl_queue; 62 bplist_phys_t *bpl_phys; 63 dmu_buf_t *bpl_dbuf; 64 dmu_buf_t *bpl_cached_dbuf; 65 } bplist_t; 66 67 extern uint64_t bplist_create(objset_t *mos, int blocksize, dmu_tx_t *tx); 68 extern void bplist_destroy(objset_t *mos, uint64_t object, dmu_tx_t *tx); 69 extern int bplist_open(bplist_t *bpl, objset_t *mos, uint64_t object); 70 extern void bplist_close(bplist_t *bpl); 71 extern boolean_t bplist_empty(bplist_t *bpl); 72 extern int bplist_iterate(bplist_t *bpl, uint64_t *itorp, blkptr_t *bp); 73 extern int bplist_enqueue(bplist_t *bpl, blkptr_t *bp, dmu_tx_t *tx); 74 extern void bplist_enqueue_deferred(bplist_t *bpl, blkptr_t *bp); 75 extern void bplist_sync(bplist_t *bpl, dmu_tx_t *tx); 76 extern void bplist_vacate(bplist_t *bpl, dmu_tx_t *tx); 77 78 #ifdef __cplusplus 79 } 80 #endif 81 82 #endif /* _SYS_BPLIST_H */ 83