58 lines
2.4 KiB
C
58 lines
2.4 KiB
C
/* $NetBSD: syncfs.h,v 1.4 2000/07/09 00:59:06 mycroft Exp $ */
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/*
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* Copyright 1997 Marshall Kirk McKusick. All Rights Reserved.
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*
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* This code is derived from work done by Greg Ganger at the
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* University of Michigan.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. None of the names of McKusick, Ganger, or the University of Michigan
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY MARSHALL KIRK MCKUSICK ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL MARSHALL KIRK MCKUSICK BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Routines to create and manage a filesystem syncer vnode.
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*/
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#define sync_close genfs_nullop
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int sync_fsync __P((void *));
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int sync_inactive __P((void *));
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int sync_reclaim __P((void *));
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#define sync_lock genfs_nolock
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#define sync_unlock genfs_nounlock
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int sync_print __P((void *));
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#define sync_islocked genfs_noislocked
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void sched_sync __P((void *));
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void vn_initialize_syncerd __P((void));
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int vfs_allocate_syncvnode __P((struct mount *));
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void vfs_deallocate_syncvnode __P((struct mount *));
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extern int (**sync_vnodeop_p) __P((void *));
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#define SYNCER_MAXDELAY 32
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extern int syncer_maxdelay; /* maximum delay time */
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extern struct lock syncer_lock; /* lock to freeze syncer during unmount */
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LIST_HEAD(synclist, vnode);
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