diff options
Diffstat (limited to 'sys/fs/ntfs/ntfs_ihash.c')
| -rw-r--r-- | sys/fs/ntfs/ntfs_ihash.c | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/sys/fs/ntfs/ntfs_ihash.c b/sys/fs/ntfs/ntfs_ihash.c deleted file mode 100644 index bb40d5c2ac83..000000000000 --- a/sys/fs/ntfs/ntfs_ihash.c +++ /dev/null @@ -1,130 +0,0 @@ -/* $NetBSD: ntfs_ihash.c,v 1.5 1999/09/30 16:56:40 jdolecek Exp $ */ - -/*- - * Copyright (c) 1982, 1986, 1989, 1991, 1993, 1995 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)ufs_ihash.c 8.7 (Berkeley) 5/17/95 - * $FreeBSD$ - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/lock.h> -#include <sys/vnode.h> -#include <sys/malloc.h> -#include <sys/mount.h> -#include <sys/mutex.h> - -#include <fs/ntfs/ntfs.h> -#include <fs/ntfs/ntfs_inode.h> -#include <fs/ntfs/ntfs_ihash.h> - -MALLOC_DEFINE(M_NTFSNTHASH, "ntfs_nthash", "NTFS ntnode hash tables"); - -/* - * Structures associated with inode cacheing. - */ -static LIST_HEAD(nthashhead, ntnode) *ntfs_nthashtbl; -static u_long ntfs_nthash; /* size of hash table - 1 */ -#define NTNOHASH(inum) (&ntfs_nthashtbl[(inum) & ntfs_nthash]) -static struct mtx ntfs_nthash_mtx; -struct lock ntfs_hashlock; - -/* - * Initialize inode hash table. - */ -void -ntfs_nthashinit() -{ - lockinit(&ntfs_hashlock, PINOD, "ntfs_nthashlock", 0, 0); - ntfs_nthashtbl = hashinit(desiredvnodes, M_NTFSNTHASH, &ntfs_nthash); - mtx_init(&ntfs_nthash_mtx, "ntfs nthash", NULL, MTX_DEF); -} - -/* - * Destroy inode hash table. - */ -void -ntfs_nthashdestroy(void) -{ - hashdestroy(ntfs_nthashtbl, M_NTFSNTHASH, ntfs_nthash); - lockdestroy(&ntfs_hashlock); - mtx_destroy(&ntfs_nthash_mtx); -} - -/* - * Use the device/inum pair to find the incore inode, and return a pointer - * to it. If it is in core, return it, even if it is locked. - */ -struct ntnode * -ntfs_nthashlookup(dev, inum) - struct cdev *dev; - ino_t inum; -{ - struct ntnode *ip; - - mtx_lock(&ntfs_nthash_mtx); - LIST_FOREACH(ip, NTNOHASH(inum), i_hash) - if (inum == ip->i_number && dev == ip->i_dev) - break; - mtx_unlock(&ntfs_nthash_mtx); - - return (ip); -} - -/* - * Insert the ntnode into the hash table. - */ -void -ntfs_nthashins(ip) - struct ntnode *ip; -{ - struct nthashhead *ipp; - - mtx_lock(&ntfs_nthash_mtx); - ipp = NTNOHASH(ip->i_number); - LIST_INSERT_HEAD(ipp, ip, i_hash); - ip->i_flag |= IN_HASHED; - mtx_unlock(&ntfs_nthash_mtx); -} - -/* - * Remove the inode from the hash table. - */ -void -ntfs_nthashrem(ip) - struct ntnode *ip; -{ - mtx_lock(&ntfs_nthash_mtx); - if (ip->i_flag & IN_HASHED) { - ip->i_flag &= ~IN_HASHED; - LIST_REMOVE(ip, i_hash); - } - mtx_unlock(&ntfs_nthash_mtx); -} |