ulfs_snapshot.c revision 1.2.2.2
1 1.2.2.2 tls /* $NetBSD: ulfs_snapshot.c,v 1.2.2.2 2013/06/23 06:18:39 tls Exp $ */ 2 1.2.2.2 tls /* from ffs_snapshot.c,v 1.122 2013/05/07 09:40:54 hannken Exp */ 3 1.2.2.2 tls 4 1.2.2.2 tls /* 5 1.2.2.2 tls * Copyright 2000 Marshall Kirk McKusick. All Rights Reserved. 6 1.2.2.2 tls * 7 1.2.2.2 tls * Further information about snapshots can be obtained from: 8 1.2.2.2 tls * 9 1.2.2.2 tls * Marshall Kirk McKusick http://www.mckusick.com/softdep/ 10 1.2.2.2 tls * 1614 Oxford Street mckusick (at) mckusick.com 11 1.2.2.2 tls * Berkeley, CA 94709-1608 +1-510-843-9542 12 1.2.2.2 tls * USA 13 1.2.2.2 tls * 14 1.2.2.2 tls * Redistribution and use in source and binary forms, with or without 15 1.2.2.2 tls * modification, are permitted provided that the following conditions 16 1.2.2.2 tls * are met: 17 1.2.2.2 tls * 18 1.2.2.2 tls * 1. Redistributions of source code must retain the above copyright 19 1.2.2.2 tls * notice, this list of conditions and the following disclaimer. 20 1.2.2.2 tls * 2. Redistributions in binary form must reproduce the above copyright 21 1.2.2.2 tls * notice, this list of conditions and the following disclaimer in the 22 1.2.2.2 tls * documentation and/or other materials provided with the distribution. 23 1.2.2.2 tls * 24 1.2.2.2 tls * THIS SOFTWARE IS PROVIDED BY MARSHALL KIRK MCKUSICK ``AS IS'' AND ANY 25 1.2.2.2 tls * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 26 1.2.2.2 tls * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 27 1.2.2.2 tls * DISCLAIMED. IN NO EVENT SHALL MARSHALL KIRK MCKUSICK BE LIABLE FOR 28 1.2.2.2 tls * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 1.2.2.2 tls * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 1.2.2.2 tls * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 1.2.2.2 tls * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 1.2.2.2 tls * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 1.2.2.2 tls * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 1.2.2.2 tls * SUCH DAMAGE. 35 1.2.2.2 tls * 36 1.2.2.2 tls * @(#)ffs_snapshot.c 8.11 (McKusick) 7/23/00 37 1.2.2.2 tls * 38 1.2.2.2 tls * from FreeBSD: ffs_snapshot.c,v 1.79 2004/02/13 02:02:06 kuriyama Exp 39 1.2.2.2 tls */ 40 1.2.2.2 tls 41 1.2.2.2 tls #include <sys/cdefs.h> 42 1.2.2.2 tls __KERNEL_RCSID(0, "$NetBSD: ulfs_snapshot.c,v 1.2.2.2 2013/06/23 06:18:39 tls Exp $"); 43 1.2.2.2 tls 44 1.2.2.2 tls #if defined(_KERNEL_OPT) 45 1.2.2.2 tls #include "opt_lfs.h" 46 1.2.2.2 tls #endif 47 1.2.2.2 tls 48 1.2.2.2 tls #include <sys/param.h> 49 1.2.2.2 tls #include <sys/kernel.h> 50 1.2.2.2 tls #include <sys/systm.h> 51 1.2.2.2 tls #include <sys/conf.h> 52 1.2.2.2 tls #include <sys/buf.h> 53 1.2.2.2 tls #include <sys/proc.h> 54 1.2.2.2 tls #include <sys/namei.h> 55 1.2.2.2 tls #include <sys/sched.h> 56 1.2.2.2 tls #include <sys/stat.h> 57 1.2.2.2 tls #include <sys/malloc.h> 58 1.2.2.2 tls #include <sys/mount.h> 59 1.2.2.2 tls #include <sys/resource.h> 60 1.2.2.2 tls #include <sys/resourcevar.h> 61 1.2.2.2 tls #include <sys/vnode.h> 62 1.2.2.2 tls #include <sys/kauth.h> 63 1.2.2.2 tls #include <sys/fstrans.h> 64 1.2.2.2 tls #include <sys/wapbl.h> 65 1.2.2.2 tls 66 1.2.2.2 tls #include <miscfs/specfs/specdev.h> 67 1.2.2.2 tls 68 1.2.2.2 tls #include <ufs/lfs/ulfs_quotacommon.h> 69 1.2.2.2 tls #include <ufs/lfs/ulfsmount.h> 70 1.2.2.2 tls #include <ufs/lfs/ulfs_inode.h> 71 1.2.2.2 tls #include <ufs/lfs/ulfs_extern.h> 72 1.2.2.2 tls #include <ufs/lfs/ulfs_bswap.h> 73 1.2.2.2 tls 74 1.2.2.2 tls #include <ufs/lfs/lfs.h> 75 1.2.2.2 tls #include <ufs/lfs/lfs_extern.h> 76 1.2.2.2 tls 77 1.2.2.2 tls #include <uvm/uvm.h> 78 1.2.2.2 tls 79 1.2.2.2 tls /* 80 1.2.2.2 tls * Decrement extra reference on snapshot when last name is removed. 81 1.2.2.2 tls * It will not be freed until the last open reference goes away. 82 1.2.2.2 tls */ 83 1.2.2.2 tls void 84 1.2.2.2 tls ulfs_snapgone(struct inode *ip) 85 1.2.2.2 tls { 86 1.2.2.2 tls (void)ip; 87 1.2.2.2 tls /* just panic */ 88 1.2.2.2 tls panic("reached ulfs_snapgone\n"); 89 1.2.2.2 tls } 90
Indexes created Wed Oct 22 13:09:56 GMT 2025