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6283f55ea1
One of the neat tricks an autoconf style project is capable of is allow configurion/building in a directory other than the source directory. The major advantage to this is that you can build the project various different ways while making changes in a single source tree. For example, this project is designed to work on various different Linux distributions each of which work slightly differently. This means that changes need to verified on each of those supported distributions perferably before the change is committed to the public git repo. Using nfs and custom build directories makes this much easier. I now have a single source tree in nfs mounted on several different systems each running a supported distribution. When I make a change to the source base I suspect may break things I can concurrently build from the same source on all the systems each in their own subdirectory. wget -c http://github.com/downloads/behlendorf/zfs/zfs-x.y.z.tar.gz tar -xzf zfs-x.y.z.tar.gz cd zfs-x-y-z ------------------------- run concurrently ---------------------- <ubuntu system> <fedora system> <debian system> <rhel6 system> mkdir ubuntu mkdir fedora mkdir debian mkdir rhel6 cd ubuntu cd fedora cd debian cd rhel6 ../configure ../configure ../configure ../configure make make make make make check make check make check make check This change also moves many of the include headers from individual incude/sys directories under the modules directory in to a single top level include directory. This has the advantage of making the build rules cleaner and logically it makes a bit more sense.
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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*/
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#ifndef _SYS_BPOBJ_H
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#define _SYS_BPOBJ_H
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#include <sys/dmu.h>
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#include <sys/spa.h>
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#include <sys/txg.h>
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#include <sys/zio.h>
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#include <sys/zfs_context.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct bpobj_phys {
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/*
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* This is the bonus buffer for the dead lists. The object's
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* contents is an array of bpo_entries blkptr_t's, representing
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* a total of bpo_bytes physical space.
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*/
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uint64_t bpo_num_blkptrs;
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uint64_t bpo_bytes;
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uint64_t bpo_comp;
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uint64_t bpo_uncomp;
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uint64_t bpo_subobjs;
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uint64_t bpo_num_subobjs;
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} bpobj_phys_t;
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#define BPOBJ_SIZE_V0 (2 * sizeof (uint64_t))
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#define BPOBJ_SIZE_V1 (4 * sizeof (uint64_t))
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typedef struct bpobj {
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kmutex_t bpo_lock;
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objset_t *bpo_os;
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uint64_t bpo_object;
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int bpo_epb;
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uint8_t bpo_havecomp;
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uint8_t bpo_havesubobj;
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bpobj_phys_t *bpo_phys;
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dmu_buf_t *bpo_dbuf;
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dmu_buf_t *bpo_cached_dbuf;
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} bpobj_t;
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typedef int bpobj_itor_t(void *arg, const blkptr_t *bp, dmu_tx_t *tx);
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uint64_t bpobj_alloc(objset_t *mos, int blocksize, dmu_tx_t *tx);
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void bpobj_free(objset_t *os, uint64_t obj, dmu_tx_t *tx);
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int bpobj_open(bpobj_t *bpo, objset_t *mos, uint64_t object);
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void bpobj_close(bpobj_t *bpo);
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int bpobj_iterate(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx);
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int bpobj_iterate_nofree(bpobj_t *bpo, bpobj_itor_t func, void *, dmu_tx_t *);
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int bpobj_iterate_dbg(bpobj_t *bpo, uint64_t *itorp, blkptr_t *bp);
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void bpobj_enqueue_subobj(bpobj_t *bpo, uint64_t subobj, dmu_tx_t *tx);
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void bpobj_enqueue(bpobj_t *bpo, const blkptr_t *bp, dmu_tx_t *tx);
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int bpobj_space(bpobj_t *bpo,
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uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
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int bpobj_space_range(bpobj_t *bpo, uint64_t mintxg, uint64_t maxtxg,
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uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_BPOBJ_H */
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