1 /* 2 * Copyright (c) 2007 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $DragonFly: src/sys/vfs/hammer/hammer_mount.h,v 1.11 2008/09/17 21:44:20 dillon Exp $ 35 */ 36 37 #ifndef VFS_HAMMER_MOUNT_H_ 38 #define VFS_HAMMER_MOUNT_H_ 39 40 #ifndef _SYS_TYPES_H_ 41 #include <sys/types.h> 42 #endif 43 #ifndef _SYS_MOUNT_H_ 44 #include <sys/mount.h> 45 #endif 46 47 /* 48 * This structure is passed from userland to the kernel during the mount 49 * system call. 50 */ 51 struct hammer_mount_info { 52 char **volumes; /* array of pointers to device names */ 53 int nvolumes; /* number of devices */ 54 int hflags; /* extended hammer mount flags */ 55 int master_id; /* -1=no-mirror mode, or 0-15 */ 56 uint64_t asof; /* asof - HAMMER_MAX_TID is current */ 57 char reserved1[136]; /* was struct export_args */ 58 uint64_t reserved2[15]; 59 }; 60 61 #define HMNT_NOHISTORY 0x00000001 62 #define HMNT_MASTERID 0x00000002 /* master_id field set */ 63 #define HMNT_NOMIRROR 0x00000004 /* master_id field set to -1 */ 64 #define HMNT_UNDO_DIRTY 0x00000008 65 66 #define HMNT_USERFLAGS (HMNT_NOHISTORY | HMNT_MASTERID | HMNT_NOMIRROR) 67 68 #endif /* !VFS_HAMMER_MOUNT_H_ */ 69