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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/fs/tmpfs/tmpfs_fifoops.c
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/*	$NetBSD: tmpfs_fifoops.c,v 1.5 2005/12/11 12:24:29 christos Exp $	*/

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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2005 The NetBSD Foundation, Inc.

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 * All rights reserved.

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 *

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 * This code is derived from software contributed to The NetBSD Foundation

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 * by Julio M. Merino Vidal, developed as part of Google's Summer of Code

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 * 2005 program.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS

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 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED

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 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS

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 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

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 * POSSIBILITY OF SUCH DAMAGE.

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 */

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/*

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 * tmpfs vnode interface for named pipes.

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 */

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#include <sys/param.h>

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#include <sys/mount.h>

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#include <sys/proc.h>

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#include <sys/vnode.h>

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#include <vm/vm.h>

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#include <vm/vm_object.h>

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#include <fs/tmpfs/tmpfs.h>

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#include <fs/tmpfs/tmpfs_fifoops.h>

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#include <fs/tmpfs/tmpfs_vnops.h>

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static int

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tmpfs_fifo_close(struct vop_close_args *v)

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{

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	struct tmpfs_node *node;

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	node = VP_TO_TMPFS_NODE(v->a_vp);

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	tmpfs_set_accessed(VFS_TO_TMPFS(v->a_vp->v_mount), node);

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	tmpfs_update(v->a_vp);

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	return (fifo_specops.vop_close(v));

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}

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/*

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 * vnode operations vector used for fifos stored in a tmpfs file system.

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 */

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struct vop_vector tmpfs_fifoop_entries = {

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	.vop_default =			&fifo_specops,

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	.vop_close =			tmpfs_fifo_close,

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	.vop_reclaim =			tmpfs_reclaim,

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	.vop_access =			tmpfs_access,

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	.vop_getattr =			tmpfs_getattr,

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	.vop_setattr =			tmpfs_setattr,

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	.vop_pathconf =                 tmpfs_pathconf,

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	.vop_print =			tmpfs_print,

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	.vop_add_writecount =		vop_stdadd_writecount_nomsync,

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	.vop_fplookup_vexec =		VOP_EAGAIN,

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	.vop_fplookup_symlink =		VOP_EAGAIN,

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};

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VFS_VOP_VECTOR_REGISTER(tmpfs_fifoop_entries);

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