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+.\"
+.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved.
+.\"
+.\" 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(s), this list of conditions and the following disclaimer as
+.\"    the first lines of this file unmodified other than the possible
+.\"    addition of one or more copyright notices.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice(s), 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 COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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 July 8, 2001
+.Dt VFS_UNBUSY 9
+.Os
+.Sh NAME
+.Nm vfs_unbusy
+.Nd "Unbusy a mount point.
+.Sh SYNOPSIS
+.Ft void
+.Fo vfs_unbusy
+.Fa "struct mount *mp"
+.Fa "struct proc *p"
+.Fc
+.Sh DESCRIPTION
+The
+.Nm
+function unbusys (unlocks) a mount point by unlocking
+mp->mnt_lock.  The lock is typically aquired by calling
+vfs_busy() prior to this call.
+.Pp
+Its arguments are:
+.Bl -tag -width uap
+.It Ar mp
+The mount point to unbusy (unlock).
+.It Ar p
+The process responsible for this call.
+.El
+.Sh LOCKS
+.Ar mnt_lock
+must be locked in
+.Ar mp
+prior to calling
+this function, and it will be unlocked upon return.
+.Sh SEE ALSO
+.Xr vfs_busy 9
+.Sh AUTHORS
+This man page was written by Chad David.