1 | /* $NetBSD: ulfs_snapshot.c,v 1.3 2015/11/14 22:03:54 pgoyette Exp $ */ |
2 | /* from ffs_snapshot.c,v 1.122 2013/05/07 09:40:54 hannken Exp */ |
3 | |
4 | /* |
5 | * Copyright 2000 Marshall Kirk McKusick. All Rights Reserved. |
6 | * |
7 | * Further information about snapshots can be obtained from: |
8 | * |
9 | * Marshall Kirk McKusick http://www.mckusick.com/softdep/ |
10 | * 1614 Oxford Street mckusick@mckusick.com |
11 | * Berkeley, CA 94709-1608 +1-510-843-9542 |
12 | * USA |
13 | * |
14 | * Redistribution and use in source and binary forms, with or without |
15 | * modification, are permitted provided that the following conditions |
16 | * are met: |
17 | * |
18 | * 1. Redistributions of source code must retain the above copyright |
19 | * notice, this list of conditions and the following disclaimer. |
20 | * 2. Redistributions in binary form must reproduce the above copyright |
21 | * notice, this list of conditions and the following disclaimer in the |
22 | * documentation and/or other materials provided with the distribution. |
23 | * |
24 | * THIS SOFTWARE IS PROVIDED BY MARSHALL KIRK MCKUSICK ``AS IS'' AND ANY |
25 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
26 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
27 | * DISCLAIMED. IN NO EVENT SHALL MARSHALL KIRK MCKUSICK BE LIABLE FOR |
28 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
34 | * SUCH DAMAGE. |
35 | * |
36 | * @(#)ffs_snapshot.c 8.11 (McKusick) 7/23/00 |
37 | * |
38 | * from FreeBSD: ffs_snapshot.c,v 1.79 2004/02/13 02:02:06 kuriyama Exp |
39 | */ |
40 | |
41 | #include <sys/cdefs.h> |
42 | __KERNEL_RCSID(0, "$NetBSD: ulfs_snapshot.c,v 1.3 2015/11/14 22:03:54 pgoyette Exp $" ); |
43 | |
44 | #if defined(_KERNEL_OPT) |
45 | #include "opt_lfs.h" |
46 | #endif |
47 | |
48 | #include <sys/param.h> |
49 | #include <sys/kernel.h> |
50 | #include <sys/systm.h> |
51 | #include <sys/conf.h> |
52 | #include <sys/buf.h> |
53 | #include <sys/proc.h> |
54 | #include <sys/namei.h> |
55 | #include <sys/sched.h> |
56 | #include <sys/stat.h> |
57 | #include <sys/malloc.h> |
58 | #include <sys/mount.h> |
59 | #include <sys/resource.h> |
60 | #include <sys/resourcevar.h> |
61 | #include <sys/vnode.h> |
62 | #include <sys/kauth.h> |
63 | #include <sys/fstrans.h> |
64 | |
65 | #include <miscfs/specfs/specdev.h> |
66 | |
67 | #include <ufs/lfs/ulfs_quotacommon.h> |
68 | #include <ufs/lfs/ulfsmount.h> |
69 | #include <ufs/lfs/ulfs_inode.h> |
70 | #include <ufs/lfs/ulfs_extern.h> |
71 | #include <ufs/lfs/ulfs_bswap.h> |
72 | |
73 | #include <ufs/lfs/lfs.h> |
74 | #include <ufs/lfs/lfs_extern.h> |
75 | |
76 | #include <uvm/uvm.h> |
77 | |
78 | /* |
79 | * Decrement extra reference on snapshot when last name is removed. |
80 | * It will not be freed until the last open reference goes away. |
81 | */ |
82 | void |
83 | ulfs_snapgone(struct inode *ip) |
84 | { |
85 | (void)ip; |
86 | /* just panic */ |
87 | panic("reached ulfs_snapgone\n" ); |
88 | } |
89 | |