diff options
Diffstat (limited to 'sys/contrib/opensolaris/uts/common/fs/zfs/sys/txg_impl.h')
| -rw-r--r-- | sys/contrib/opensolaris/uts/common/fs/zfs/sys/txg_impl.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/sys/contrib/opensolaris/uts/common/fs/zfs/sys/txg_impl.h b/sys/contrib/opensolaris/uts/common/fs/zfs/sys/txg_impl.h new file mode 100644 index 000000000000..45a138afaac3 --- /dev/null +++ b/sys/contrib/opensolaris/uts/common/fs/zfs/sys/txg_impl.h @@ -0,0 +1,77 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (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 2005 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SYS_TXG_IMPL_H +#define _SYS_TXG_IMPL_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/spa.h> +#include <sys/txg.h> + +#ifdef __cplusplus +extern "C" { +#endif + +struct tx_cpu { + kmutex_t tc_lock; + kcondvar_t tc_cv[TXG_SIZE]; + uint64_t tc_count[TXG_SIZE]; + char tc_pad[16]; +}; + +typedef struct tx_state { + tx_cpu_t *tx_cpu; /* protects right to enter txg */ + kmutex_t tx_sync_lock; /* protects tx_state_t */ + krwlock_t tx_suspend; + uint64_t tx_open_txg; /* currently open txg id */ + uint64_t tx_quiesced_txg; /* quiesced txg waiting for sync */ + uint64_t tx_syncing_txg; /* currently syncing txg id */ + uint64_t tx_synced_txg; /* last synced txg id */ + + uint64_t tx_sync_txg_waiting; /* txg we're waiting to sync */ + uint64_t tx_quiesce_txg_waiting; /* txg we're waiting to open */ + + kcondvar_t tx_sync_more_cv; + kcondvar_t tx_sync_done_cv; + kcondvar_t tx_quiesce_more_cv; + kcondvar_t tx_quiesce_done_cv; + kcondvar_t tx_timeout_exit_cv; + kcondvar_t tx_exit_cv; /* wait for all threads to exit */ + + uint8_t tx_threads; /* number of threads */ + uint8_t tx_exiting; /* set when we're exiting */ + + kthread_t *tx_sync_thread; + kthread_t *tx_quiesce_thread; + kthread_t *tx_timelimit_thread; +} tx_state_t; + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_TXG_IMPL_H */ |