tmpfs_fifoops.c

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    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-NetBSD
    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 #include <sys/cdefs.h>
   39  __FBSDID("$FreeBSD: releng/12.0/sys/fs/tmpfs/tmpfs_fifoops.c 327004 2017-12-19 22:39:05Z jhb $");
   40 
   41 #include <sys/param.h>
   42 #include <sys/mount.h>
   43 #include <sys/proc.h>
   44 #include <sys/vnode.h>
   45 
   46 #include <vm/vm.h>
   47 #include <vm/vm_object.h>
   48 
   49 #include <fs/tmpfs/tmpfs.h>
   50 #include <fs/tmpfs/tmpfs_fifoops.h>
   51 #include <fs/tmpfs/tmpfs_vnops.h>
   52 
   53 static int
   54 tmpfs_fifo_close(struct vop_close_args *v)
   55 {
   56         struct tmpfs_node *node;
   57 
   58         node = VP_TO_TMPFS_NODE(v->a_vp);
   59         tmpfs_set_status(node, TMPFS_NODE_ACCESSED);
   60         tmpfs_update(v->a_vp);
   61         return (fifo_specops.vop_close(v));
   62 }
   63 
   64 /*
   65  * vnode operations vector used for fifos stored in a tmpfs file system.
   66  */
   67 struct vop_vector tmpfs_fifoop_entries = {
   68         .vop_default =                  &fifo_specops,
   69         .vop_close =                    tmpfs_fifo_close,
   70         .vop_reclaim =                  tmpfs_reclaim,
   71         .vop_access =                   tmpfs_access,
   72         .vop_getattr =                  tmpfs_getattr,
   73         .vop_setattr =                  tmpfs_setattr,
   74         .vop_pathconf =                 tmpfs_pathconf,
   75         .vop_print =                    tmpfs_print,
   76 };

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FreeBSD/Linux Kernel Cross Reference sys/fs/tmpfs/tmpfs_fifoops.c

FreeBSD/Linux Kernel Cross Reference
sys/fs/tmpfs/tmpfs_fifoops.c