[dragonfly.git] / sys / vfs / hammer / hammer_mount.h

/*
 * Copyright (c) 2007 The DragonFly Project.  All rights reserved.
 * 
 * This code is derived from software contributed to The DragonFly Project
 * by Matthew Dillon <dillon@backplane.com>
 * 
 * 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.
 * 3. Neither the name of The DragonFly Project 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 COPYRIGHT HOLDERS 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
 * COPYRIGHT HOLDERS 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.
 * 
 * $DragonFly: src/sys/vfs/hammer/hammer_mount.h,v 1.11 2008/09/17 21:44:20 dillon Exp $
 */

#ifndef _SYS_TYPES_H_
#include <sys/types.h>
#endif
#ifndef _SYS_MOUNT_H_
#include <sys/mount.h>
#endif

/*
 * This structure is passed from userland to the kernel during the mount
 * system call.
 */
struct hammer_mount_info {
	const char	**volumes;	/* array of pointers to device names */
	int		nvolumes;	/* number of devices */
	int		hflags;		/* extended hammer mount flags */
	int		master_id;	/* -1=no-mirror mode, or 0-15 */
	u_int64_t	asof;		/* asof - HAMMER_MAX_TID is current */
	char		reserved1[136];	/* was struct export_args */
	u_int64_t	reserved2[15];
};

#define HMNT_NOHISTORY	0x00000001
#define HMNT_MASTERID	0x00000002	/* master_id field set */
#define HMNT_EXPORTREQ	0x00000004
#define HMNT_UNDO_DIRTY	0x00000008
#define HMNT_STAGE2	0x00000010	/* ran stage-2 recovery */
#define HMNT_HASREDO	0x00000020	/* stage-2 must scan for REDO */

#define HMNT_USERFLAGS	(HMNT_NOHISTORY | HMNT_MASTERID)
Commit	Line	Data
8750964d MD	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	*
67863d04	34	* $DragonFly: src/sys/vfs/hammer/hammer_mount.h,v 1.11 2008/09/17 21:44:20 dillon Exp $
8750964d MD	35	*/
	36
	37	#ifndef _SYS_TYPES_H_
	38	#include <sys/types.h>
	39	#endif
	40	#ifndef _SYS_MOUNT_H_
	41	#include <sys/mount.h>
	42	#endif
	43
	44	/*
	45	* This structure is passed from userland to the kernel during the mount
	46	* system call.
	47	*/
	48	struct hammer_mount_info {
7f7c1f84 MD	49	const char *volumes; / array of pointers to device names */
7f7c1f84 MD	50	int nvolumes; /* number of devices */
195c19a1	51	int hflags; /* extended hammer mount flags */
732a1697	52	int master_id; /* -1=no-mirror mode, or 0-15 */
7f7c1f84	53	u_int64_t asof; /* asof - HAMMER_MAX_TID is current */
67863d04 MD	54	char reserved1[136]; /* was struct export_args */
67863d04 MD	55	u_int64_t reserved2[15];
8750964d MD	56	};
8750964d MD	57
195c19a1	58	#define HMNT_NOHISTORY 0x00000001
732a1697	59	#define HMNT_MASTERID 0x00000002 /* master_id field set */
5de0c0e5	60	#define HMNT_EXPORTREQ 0x00000004
1b0ab2c3	61	#define HMNT_UNDO_DIRTY 0x00000008
02428fb6 MD	62	#define HMNT_STAGE2 0x00000010 /* ran stage-2 recovery */
02428fb6 MD	63	#define HMNT_HASREDO 0x00000020 /* stage-2 must scan for REDO */
195c19a1	64
5de0c0e5	65	#define HMNT_USERFLAGS (HMNT_NOHISTORY \| HMNT_MASTERID)
51c35492	66