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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.
81 lines
2.8 KiB
C
81 lines
2.8 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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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*/
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#ifndef _SYS_METASLAB_H
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#define _SYS_METASLAB_H
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#include <sys/spa.h>
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#include <sys/space_map.h>
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#include <sys/txg.h>
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#include <sys/zio.h>
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#include <sys/avl.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern space_map_ops_t *zfs_metaslab_ops;
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extern metaslab_t *metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo,
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uint64_t start, uint64_t size, uint64_t txg);
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extern void metaslab_fini(metaslab_t *msp);
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extern void metaslab_sync(metaslab_t *msp, uint64_t txg);
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extern void metaslab_sync_done(metaslab_t *msp, uint64_t txg);
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extern void metaslab_sync_reassess(metaslab_group_t *mg);
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#define METASLAB_HINTBP_FAVOR 0x0
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#define METASLAB_HINTBP_AVOID 0x1
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#define METASLAB_GANG_HEADER 0x2
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extern int metaslab_alloc(spa_t *spa, metaslab_class_t *mc, uint64_t psize,
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blkptr_t *bp, int ncopies, uint64_t txg, blkptr_t *hintbp, int flags);
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extern void metaslab_free(spa_t *spa, const blkptr_t *bp, uint64_t txg,
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boolean_t now);
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extern int metaslab_claim(spa_t *spa, const blkptr_t *bp, uint64_t txg);
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extern metaslab_class_t *metaslab_class_create(spa_t *spa,
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space_map_ops_t *ops);
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extern void metaslab_class_destroy(metaslab_class_t *mc);
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extern int metaslab_class_validate(metaslab_class_t *mc);
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extern void metaslab_class_space_update(metaslab_class_t *mc,
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int64_t alloc_delta, int64_t defer_delta,
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int64_t space_delta, int64_t dspace_delta);
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extern uint64_t metaslab_class_get_alloc(metaslab_class_t *mc);
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extern uint64_t metaslab_class_get_space(metaslab_class_t *mc);
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extern uint64_t metaslab_class_get_dspace(metaslab_class_t *mc);
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extern uint64_t metaslab_class_get_deferred(metaslab_class_t *mc);
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extern metaslab_group_t *metaslab_group_create(metaslab_class_t *mc,
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vdev_t *vd);
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extern void metaslab_group_destroy(metaslab_group_t *mg);
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extern void metaslab_group_activate(metaslab_group_t *mg);
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extern void metaslab_group_passivate(metaslab_group_t *mg);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_METASLAB_H */
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