tmpfs_fifoops.c revision 328295 
1/*	$NetBSD: tmpfs_fifoops.c,v 1.5 2005/12/11 12:24:29 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2005 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Julio M. Merino Vidal, developed as part of Google's Summer of Code
9 * 2005 program.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * tmpfs vnode interface for named pipes.
35 */
36#include <sys/cdefs.h>
37 __FBSDID("$FreeBSD: stable/11/sys/fs/tmpfs/tmpfs_fifoops.c 328295 2018-01-23 19:00:13Z jhb $");
38
39#include <sys/param.h>
40#include <sys/filedesc.h>
41#include <sys/proc.h>
42#include <sys/vnode.h>
43
44#include <vm/vm.h>
45#include <vm/vm_object.h>
46
47#include <fs/tmpfs/tmpfs.h>
48#include <fs/tmpfs/tmpfs_fifoops.h>
49#include <fs/tmpfs/tmpfs_vnops.h>
50
51static int
52tmpfs_fifo_close(struct vop_close_args *v)
53{
54	struct tmpfs_node *node;
55
56	node = VP_TO_TMPFS_NODE(v->a_vp);
57	tmpfs_set_status(node, TMPFS_NODE_ACCESSED);
58	tmpfs_update(v->a_vp);
59	return (fifo_specops.vop_close(v));
60}
61
62/*
63 * vnode operations vector used for fifos stored in a tmpfs file system.
64 */
65struct vop_vector tmpfs_fifoop_entries = {
66	.vop_default =			&fifo_specops,
67	.vop_close =			tmpfs_fifo_close,
68	.vop_reclaim =			tmpfs_reclaim,
69	.vop_access =			tmpfs_access,
70	.vop_getattr =			tmpfs_getattr,
71	.vop_setattr =			tmpfs_setattr,
72	.vop_print =			tmpfs_print,
73};
74