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.
149 lines
3.8 KiB
C
149 lines
3.8 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 2010 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#ifndef _SYS_DMU_TX_H
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#define _SYS_DMU_TX_H
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#include <sys/inttypes.h>
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#include <sys/dmu.h>
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#include <sys/txg.h>
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#include <sys/refcount.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct dmu_buf_impl;
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struct dmu_tx_hold;
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struct dnode_link;
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struct dsl_pool;
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struct dnode;
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struct dsl_dir;
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struct dmu_tx {
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/*
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* No synchronization is needed because a tx can only be handled
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* by one thread.
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*/
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list_t tx_holds; /* list of dmu_tx_hold_t */
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objset_t *tx_objset;
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struct dsl_dir *tx_dir;
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struct dsl_pool *tx_pool;
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uint64_t tx_txg;
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uint64_t tx_lastsnap_txg;
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uint64_t tx_lasttried_txg;
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txg_handle_t tx_txgh;
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void *tx_tempreserve_cookie;
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struct dmu_tx_hold *tx_needassign_txh;
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list_t tx_callbacks; /* list of dmu_tx_callback_t on this dmu_tx */
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uint8_t tx_anyobj;
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int tx_err;
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#ifdef ZFS_DEBUG
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uint64_t tx_space_towrite;
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uint64_t tx_space_tofree;
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uint64_t tx_space_tooverwrite;
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uint64_t tx_space_tounref;
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refcount_t tx_space_written;
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refcount_t tx_space_freed;
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#endif
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};
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enum dmu_tx_hold_type {
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THT_NEWOBJECT,
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THT_WRITE,
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THT_BONUS,
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THT_FREE,
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THT_ZAP,
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THT_SPACE,
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THT_SPILL,
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THT_NUMTYPES
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};
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typedef struct dmu_tx_hold {
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dmu_tx_t *txh_tx;
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list_node_t txh_node;
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struct dnode *txh_dnode;
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uint64_t txh_space_towrite;
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uint64_t txh_space_tofree;
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uint64_t txh_space_tooverwrite;
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uint64_t txh_space_tounref;
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uint64_t txh_memory_tohold;
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uint64_t txh_fudge;
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#ifdef ZFS_DEBUG
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enum dmu_tx_hold_type txh_type;
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uint64_t txh_arg1;
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uint64_t txh_arg2;
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#endif
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} dmu_tx_hold_t;
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typedef struct dmu_tx_callback {
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list_node_t dcb_node; /* linked to tx_callbacks list */
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dmu_tx_callback_func_t *dcb_func; /* caller function pointer */
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void *dcb_data; /* caller private data */
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} dmu_tx_callback_t;
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/*
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* These routines are defined in dmu.h, and are called by the user.
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*/
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dmu_tx_t *dmu_tx_create(objset_t *dd);
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int dmu_tx_assign(dmu_tx_t *tx, uint64_t txg_how);
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void dmu_tx_commit(dmu_tx_t *tx);
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void dmu_tx_abort(dmu_tx_t *tx);
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uint64_t dmu_tx_get_txg(dmu_tx_t *tx);
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void dmu_tx_wait(dmu_tx_t *tx);
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void dmu_tx_callback_register(dmu_tx_t *tx, dmu_tx_callback_func_t *dcb_func,
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void *dcb_data);
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void dmu_tx_do_callbacks(list_t *cb_list, int error);
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/*
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* These routines are defined in dmu_spa.h, and are called by the SPA.
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*/
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extern dmu_tx_t *dmu_tx_create_assigned(struct dsl_pool *dp, uint64_t txg);
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/*
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* These routines are only called by the DMU.
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*/
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dmu_tx_t *dmu_tx_create_dd(dsl_dir_t *dd);
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int dmu_tx_is_syncing(dmu_tx_t *tx);
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int dmu_tx_private_ok(dmu_tx_t *tx);
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void dmu_tx_add_new_object(dmu_tx_t *tx, objset_t *os, uint64_t object);
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void dmu_tx_willuse_space(dmu_tx_t *tx, int64_t delta);
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void dmu_tx_dirty_buf(dmu_tx_t *tx, struct dmu_buf_impl *db);
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int dmu_tx_holds(dmu_tx_t *tx, uint64_t object);
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void dmu_tx_hold_space(dmu_tx_t *tx, uint64_t space);
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#ifdef ZFS_DEBUG
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#define DMU_TX_DIRTY_BUF(tx, db) dmu_tx_dirty_buf(tx, db)
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#else
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#define DMU_TX_DIRTY_BUF(tx, db)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_DMU_TX_H */
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