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diff --git a/share/man/man9/VFS_SYNC.9 b/share/man/man9/VFS_SYNC.9 new file mode 100644 index 0000000..ed510dd --- /dev/null +++ b/share/man/man9/VFS_SYNC.9 @@ -0,0 +1,81 @@ +.\" -*- nroff -*- +.\" +.\" Copyright (c) 1996 Doug Rabson +.\" +.\" All rights reserved. +.\" +.\" This program is free software. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR +.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, +.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd May 23, 2009 +.Dt VFS_SYNC 9 +.Os +.Sh NAME +.Nm VFS_SYNC +.Nd flush unwritten data +.Sh SYNOPSIS +.In sys/param.h +.In sys/mount.h +.In sys/vnode.h +.Ft int +.Fn VFS_SYNC "struct mount *mp" "int waitfor" +.Sh DESCRIPTION +The +.Fn VFS_SYNC +macro writes out all unwritten data in the file system mounted as +.Fa mp . +.Pp +The arguments it expects are: +.Bl -tag -width ".Fa waitfor" +.It Fa mp +The file system. +.It Fa waitfor +Whether the function should wait for I/O to complete. +Possible values are: +.Bl -tag -width MNT_NOWAIT +.It Dv MNT_WAIT +synchronously wait for I/O to complete +.It Dv MNT_NOWAIT +start all I/O, but do not wait for it +.It Dv MNT_LAZY +push data not written by file system syncer +.El +.El +.Pp +The +.Fn VFS_SYNC +macro calls the +.Va vfs_sync +method of the file system, which normally calls +.Xr VOP_FSYNC 9 +for all the vnodes in the file system. +.Sh SEE ALSO +.Xr fsync 2 , +.Xr sync 2 , +.Xr VFS 9 , +.Xr vnode 9 , +.Xr VOP_FSYNC 9 +.Sh AUTHORS +This manual page was written by +.An Doug Rabson . |