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.\" $FreeBSD: release/9.1.0/share/man/man9/vflush.9 215176 2010-11-12 12:07:36Z pluknet $
.\"
.Dd November 21, 2001
.Dt VFLUSH 9
.Os
.Sh NAME
.Nm vflush
.Nd "flush vnodes for a mount point"
.Sh SYNOPSIS
.In sys/param.h
.In sys/vnode.h
.Ft int
.Fn vflush "struct mount *mp" "int rootrefs" "int flags" "struct thread *td"
.Sh DESCRIPTION
The
.Fn vflush
function removes any vnodes in the vnode table that belong to the given
.Vt mount
structure.
.Pp
Its arguments are:
.Bl -tag -width ".Fa rootrefs"
.It Fa mp
The mount point whose vnodes should be removed.
.It Fa rootrefs
The number of references expected on the root vnode.
.Xr vrele 9
will be invoked on the root vnode
.Fa rootrefs
times.
.It Fa flags
The flags indicating how vnodes should be handled.
.Bl -tag -width ".Dv WRITECLOSE"
.It Dv FORCECLOSE
If set, busy vnodes will be forcibly closed.
.It Dv SKIPSYSTEM
If set, vnodes with the
.Dv VV_SYSTEM
flag set will be skipped.
.It Dv WRITECLOSE
If set, only regular files currently opened for writing will be removed.
.El
.It Fa td
The calling thread.
.El
.Sh RETURN VALUES
A value of 0 is returned if the flush is successful; otherwise,
.Er EBUSY
will be returned.
.Sh SEE ALSO
.Xr vgone 9 ,
.Xr vrele 9
.Sh AUTHORS
This manual page was written by
.An Chad David Aq davidc@acns.ab.ca .