1 /* $NetBSD: tmpfs_fifoops.c,v 1.5 2005/12/11 12:24:29 christos Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 2005 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Julio M. Merino Vidal, developed as part of Google's Summer of Code 11 * 2005 program. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* 36 * tmpfs vnode interface for named pipes. 37 */ 38 39 #include <sys/param.h> 40 #include <sys/mount.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 51 static int 52 tmpfs_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_accessed(VFS_TO_TMPFS(v->a_vp->v_mount), node); 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 */ 65 struct 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_pathconf = tmpfs_pathconf, 73 .vop_print = tmpfs_print, 74 .vop_add_writecount = vop_stdadd_writecount_nomsync, 75 .vop_fplookup_vexec = VOP_EAGAIN, 76 .vop_fplookup_symlink = VOP_EAGAIN, 77 }; 78 VFS_VOP_VECTOR_REGISTER(tmpfs_fifoop_entries); 79