freebsd-dev/include/sys/dsl_deadlist.h
Brian Behlendorf 6283f55ea1 Support custom build directories and move includes
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.
2010-09-08 12:38:56 -07:00

88 lines
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C

/*
* 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_DSL_DEADLIST_H
#define _SYS_DSL_DEADLIST_H
#include <sys/bpobj.h>
#include <sys/zfs_context.h>
#ifdef __cplusplus
extern "C" {
#endif
struct dmu_buf;
struct dsl_dataset;
typedef struct dsl_deadlist_phys {
uint64_t dl_used;
uint64_t dl_comp;
uint64_t dl_uncomp;
uint64_t dl_pad[37]; /* pad out to 320b for future expansion */
} dsl_deadlist_phys_t;
typedef struct dsl_deadlist {
objset_t *dl_os;
uint64_t dl_object;
avl_tree_t dl_tree;
boolean_t dl_havetree;
struct dmu_buf *dl_dbuf;
dsl_deadlist_phys_t *dl_phys;
kmutex_t dl_lock;
/* if it's the old on-disk format: */
bpobj_t dl_bpobj;
boolean_t dl_oldfmt;
} dsl_deadlist_t;
typedef struct dsl_deadlist_entry {
avl_node_t dle_node;
uint64_t dle_mintxg;
bpobj_t dle_bpobj;
} dsl_deadlist_entry_t;
void dsl_deadlist_open(dsl_deadlist_t *dl, objset_t *os, uint64_t object);
void dsl_deadlist_close(dsl_deadlist_t *dl);
uint64_t dsl_deadlist_alloc(objset_t *os, dmu_tx_t *tx);
void dsl_deadlist_free(objset_t *os, uint64_t dlobj, dmu_tx_t *tx);
void dsl_deadlist_insert(dsl_deadlist_t *dl, const blkptr_t *bp, dmu_tx_t *tx);
void dsl_deadlist_add_key(dsl_deadlist_t *dl, uint64_t mintxg, dmu_tx_t *tx);
void dsl_deadlist_remove_key(dsl_deadlist_t *dl, uint64_t mintxg, dmu_tx_t *tx);
uint64_t dsl_deadlist_clone(dsl_deadlist_t *dl, uint64_t maxtxg,
uint64_t mrs_obj, dmu_tx_t *tx);
void dsl_deadlist_space(dsl_deadlist_t *dl,
uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
void dsl_deadlist_space_range(dsl_deadlist_t *dl,
uint64_t mintxg, uint64_t maxtxg,
uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
void dsl_deadlist_merge(dsl_deadlist_t *dl, uint64_t obj, dmu_tx_t *tx);
void dsl_deadlist_move_bpobj(dsl_deadlist_t *dl, bpobj_t *bpo, uint64_t mintxg,
dmu_tx_t *tx);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_DSL_DEADLIST_H */