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Commit	Line	Data
	1	/*-
	2	* Copyright (c) 1982, 1986, 1989, 1993
	3	* The Regents of the University of California. All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*
	33	* @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
	34	* $FreeBSD: src/sys/ufs/ufs/ufsmount.h,v 1.17 1999/12/29 04:55:06 peter Exp $
	35	*/
	36
	37	#ifndef _VFS_GNU_EXT2FS_EXT2MOUNT_H_
	38	#define _VFS_GNU_EXT2FS_EXT2MOUNT_H_
	39
	40	/*
	41	* Arguments to mount UFS-based filesystems
	42	*/
	43	struct ext2_args {
	44	char fspec; / block special device to mount */
	45	struct export_args export; /* network export information */
	46	};
	47
	48	/*
	49	* Arguments to mount MFS
	50	*/
	51	struct mfs_args {
	52	char fspec; / name to export for statfs */
	53	struct export_args export; /* if exported MFSes are supported */
	54	caddr_t base; /* base of filesystem in memory */
	55	u_long size; /* size of filesystem */
	56	};
	57
	58	#ifdef _KERNEL
	59
	60	#ifdef MALLOC_DECLARE
	61	MALLOC_DECLARE(M_EXT2MNT);
	62	#endif
	63
	64	struct buf;
	65	struct inode;
	66	struct timeval;
	67	struct ucred;
	68	struct uio;
	69	struct vnode;
	70	struct netexport;
	71
	72	/* This structure describes the UFS specific mount structure data. */
	73	struct ext2mount {
	74	struct mount um_mountp; / filesystem vfs structure */
	75	cdev_t um_dev; /* device mounted */
	76	struct vnode um_devvp; / block device mounted vnode */
	77
	78	struct ext2_sb_info *um_e2fs;
	79	struct vnode um_quotas[MAXQUOTAS]; / pointer to quota files */
	80	struct ucred um_cred[MAXQUOTAS]; / quota file access cred */
	81	u_long um_nindir; /* indirect ptrs per block */
	82	u_long um_bptrtodb; /* indir ptr to disk block */
	83	u_long um_seqinc; /* inc between seq blocks */
	84	time_t um_btime[MAXQUOTAS]; /* block quota time limit */
	85	time_t um_itime[MAXQUOTAS]; /* inode quota time limit */
	86	char um_qflags[MAXQUOTAS]; /* quota specific flags */
	87	struct netexport um_export; /* export information */
	88	int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */
	89	struct malloc_type um_malloctype; / The inodes malloctype */
	90	int um_i_effnlink_valid; /* i_effnlink valid? */
	91	int (um_blkatoff) (struct vnode , off_t, char , struct buf );
	92	int (um_truncate) (struct vnode , off_t, int, struct ucred *);
	93	int (um_update) (struct vnode , int);
	94	int (um_valloc) (struct vnode , int, struct ucred , struct vnode *);
	95	int (um_vfree) (struct vnode , ino_t, int);
	96	};
	97
	98	#define um_e2fsb um_e2fs->s_es
	99
	100	#define EXT2_BLKATOFF(aa, bb, cc, dd) VFSTOEXT2((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd)
	101	#define EXT2_TRUNCATE(aa, bb, cc, dd) VFSTOEXT2((aa)->v_mount)->um_truncate(aa, bb, cc, dd)
	102	#define EXT2_UPDATE(aa, bb) VFSTOEXT2((aa)->v_mount)->um_update(aa, bb)
	103	#define EXT2_VALLOC(aa, bb, cc, dd) VFSTOEXT2((aa)->v_mount)->um_valloc(aa, bb, cc, dd)
	104	#define EXT2_VFREE(aa, bb, cc) VFSTOEXT2((aa)->v_mount)->um_vfree(aa, bb, cc)
	105
	106	/*
	107	* Flags describing the state of quotas.
	108	*/
	109	#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
	110	#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
	111
	112	/* Convert mount ptr to ext2mount ptr. */
	113	#define VFSTOEXT2(mp) ((struct ext2mount *)((mp)->mnt_data))
	114
	115	/*
	116	* Macros to access filesystem parameters in the ext2mount structure.
	117	* Used by ext2_bmap.
	118	*/
	119	#define MNINDIR(ump) ((ump)->um_nindir)
	120	#define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
	121	#define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)
	122	#endif /* _KERNEL */
	123
	124	#endif /* !_VFS_GNU_EXT2FS_EXT2MOUNT_H_ */