projects / mirror_zfs-debian.git / blame
| Commit | Line | Data |
|---|---|---|
| 34dc7c2f BB |
1 | /* |
| 2 | * CDDL HEADER START | |
| 3 | * | |
| 4 | * The contents of this file are subject to the terms of the | |
| 5 | * Common Development and Distribution License (the "License"). | |
| 6 | * You may not use this file except in compliance with the License. | |
| 7 | * | |
| 8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
| 9 | * or http://www.opensolaris.org/os/licensing. | |
| 10 | * See the License for the specific language governing permissions | |
| 11 | * and limitations under the License. | |
| 12 | * | |
| 13 | * When distributing Covered Code, include this CDDL HEADER in each | |
| 14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
| 15 | * If applicable, add the following below this CDDL HEADER, with the | |
| 16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
| 17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
| 18 | * | |
| 19 | * CDDL HEADER END | |
| 20 | */ | |
| 21 | /* | |
| 428870ff | 22 | * Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
| 34dc7c2f BB |
23 | * Use is subject to license terms. |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef _SYS_TXG_IMPL_H | |
| 27 | #define _SYS_TXG_IMPL_H | |
| 28 | ||
| 34dc7c2f BB |
29 | #include <sys/spa.h> |
| 30 | #include <sys/txg.h> | |
| 31 | ||
| 32 | #ifdef __cplusplus | |
| 33 | extern "C" { | |
| 34 | #endif | |
| 35 | ||
| 36 | struct tx_cpu { | |
| 37 | kmutex_t tc_lock; | |
| 38 | kcondvar_t tc_cv[TXG_SIZE]; | |
| 39 | uint64_t tc_count[TXG_SIZE]; | |
| 428870ff | 40 | list_t tc_callbacks[TXG_SIZE]; /* commit cb list */ |
| 34dc7c2f BB |
41 | char tc_pad[16]; |
| 42 | }; | |
| 43 | ||
| 44 | typedef struct tx_state { | |
| 45 | tx_cpu_t *tx_cpu; /* protects right to enter txg */ | |
| 46 | kmutex_t tx_sync_lock; /* protects tx_state_t */ | |
| 34dc7c2f BB |
47 | uint64_t tx_open_txg; /* currently open txg id */ |
| 48 | uint64_t tx_quiesced_txg; /* quiesced txg waiting for sync */ | |
| 49 | uint64_t tx_syncing_txg; /* currently syncing txg id */ | |
| 50 | uint64_t tx_synced_txg; /* last synced txg id */ | |
| 51 | ||
| 52 | uint64_t tx_sync_txg_waiting; /* txg we're waiting to sync */ | |
| 53 | uint64_t tx_quiesce_txg_waiting; /* txg we're waiting to open */ | |
| 54 | ||
| 55 | kcondvar_t tx_sync_more_cv; | |
| 56 | kcondvar_t tx_sync_done_cv; | |
| 57 | kcondvar_t tx_quiesce_more_cv; | |
| 58 | kcondvar_t tx_quiesce_done_cv; | |
| 59 | kcondvar_t tx_timeout_cv; | |
| 60 | kcondvar_t tx_exit_cv; /* wait for all threads to exit */ | |
| 61 | ||
| 62 | uint8_t tx_threads; /* number of threads */ | |
| 63 | uint8_t tx_exiting; /* set when we're exiting */ | |
| 64 | ||
| 65 | kthread_t *tx_sync_thread; | |
| 66 | kthread_t *tx_quiesce_thread; | |
| 428870ff BB |
67 | |
| 68 | taskq_t *tx_commit_cb_taskq; /* commit callback taskq */ | |
| 34dc7c2f BB |
69 | } tx_state_t; |
| 70 | ||
| 71 | #ifdef __cplusplus | |
| 72 | } | |
| 73 | #endif | |
| 74 | ||
| 75 | #endif /* _SYS_TXG_IMPL_H */ |