xref: /haiku/src/add-ons/kernel/file_systems/fat/bsd/kern/vfs_cache.c (revision 342a1b221b5bb385410f758df2c625b70cafdd03)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1989, 1993, 1995
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Poul-Henning Kamp of the FreeBSD Project.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 
36 // Modified to support the Haiku FAT driver.
37 
38 #ifdef FS_SHELL
39 #include "fssh_api_wrapper.h"
40 #else
41 #include <fs_cache.h>
42 #endif // FS_SHELL
43 
44 #include "sys/param.h"
45 #include "sys/systm.h"
46 #include "sys/namei.h"
47 #include "sys/vnode.h"
48 #include "sys/buf.h"
49 #include "sys/conf.h"
50 
51 #include "fs/msdosfs/denode.h"
52 #include "fs/msdosfs/direntry.h"
53 
54 
55 /*! Add an entry to the entry cache.
56 
57  */
58 void
cache_enter(struct vnode * dvp,struct vnode * vp,struct componentname * cnp)59 cache_enter(struct vnode* dvp, struct vnode* vp, struct componentname* cnp)
60 {
61 	struct denode* fatNode = (struct denode*)vp->v_data;
62 	entry_cache_add(fatNode->de_pmp->pm_dev->si_id, (VTODE(dvp))->de_inode, cnp->cn_nameptr,
63 		fatNode->de_inode);
64 
65 	return;
66 }
67