.\" -*- 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 July 27, 2014 .Dt VOP_INACTIVE 9 .Os .Sh NAME .Nm VOP_INACTIVE , .Nm VOP_RECLAIM .Nd reclaim file system resources for a vnode .Sh SYNOPSIS .In sys/param.h .In sys/vnode.h .Ft int .Fn VOP_INACTIVE "struct vnode *vp" "struct thread *td" .Ft int .Fn VOP_RECLAIM "struct vnode *vp" "struct thread *td" .Sh DESCRIPTION The arguments are: .Bl -tag -width 2n .It Fa vp The vnode being reclaimed. .El .Pp .Fn VOP_INACTIVE is called when the kernel is no longer using the vnode. This may be because the reference count reaches zero or it may be that the file system is being forcibly unmounted while there are open files. It can be used to reclaim space for .Sq open but deleted files. .Pp .Fn VOP_RECLAIM is called when a vnode is being reused for a different file system. Any file system specific resources associated with the vnode should be freed. .Sh LOCKS For both .Fn VOP_INACTIVE and .Fn VOP_RECLAIM , the .Fa vp will be exclusively locked on entry, and must be left exclusively locked on return. .Sh SEE ALSO .Xr vnode 9 .Sh AUTHORS This manual page was written by .An Doug Rabson .