diff options
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/bplist.h')
| -rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/bplist.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/bplist.h b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/bplist.h new file mode 100644 index 0000000..b4c8376 --- /dev/null +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/bplist.h @@ -0,0 +1,89 @@ +/* + * 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 2006 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SYS_BPLIST_H +#define _SYS_BPLIST_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/dmu.h> +#include <sys/spa.h> +#include <sys/txg.h> +#include <sys/zfs_context.h> + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct bplist_phys { + /* + * This is the bonus buffer for the dead lists. The object's + * contents is an array of bpl_entries blkptr_t's, representing + * a total of bpl_bytes physical space. + */ + uint64_t bpl_entries; + uint64_t bpl_bytes; + uint64_t bpl_comp; + uint64_t bpl_uncomp; +} bplist_phys_t; + +#define BPLIST_SIZE_V0 (2 * sizeof (uint64_t)) + +typedef struct bplist_q { + blkptr_t bpq_blk; + void *bpq_next; +} bplist_q_t; + +typedef struct bplist { + kmutex_t bpl_lock; + objset_t *bpl_mos; + uint64_t bpl_object; + uint8_t bpl_blockshift; + uint8_t bpl_bpshift; + uint8_t bpl_havecomp; + bplist_q_t *bpl_queue; + bplist_phys_t *bpl_phys; + dmu_buf_t *bpl_dbuf; + dmu_buf_t *bpl_cached_dbuf; +} bplist_t; + +extern uint64_t bplist_create(objset_t *mos, int blocksize, dmu_tx_t *tx); +extern void bplist_destroy(objset_t *mos, uint64_t object, dmu_tx_t *tx); +extern int bplist_open(bplist_t *bpl, objset_t *mos, uint64_t object); +extern void bplist_close(bplist_t *bpl); +extern boolean_t bplist_empty(bplist_t *bpl); +extern int bplist_iterate(bplist_t *bpl, uint64_t *itorp, blkptr_t *bp); +extern int bplist_enqueue(bplist_t *bpl, blkptr_t *bp, dmu_tx_t *tx); +extern void bplist_enqueue_deferred(bplist_t *bpl, blkptr_t *bp); +extern void bplist_sync(bplist_t *bpl, dmu_tx_t *tx); +extern void bplist_vacate(bplist_t *bpl, dmu_tx_t *tx); +extern int bplist_space(bplist_t *bpl, + uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_BPLIST_H */ |
