mount struct prefixes go from m_ to mnt_ and M_ to MNT_

[unix-history] / usr / src / sys / ufs / ffs / ufsmount.h

/*
 * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *	@(#)ufsmount.h	7.6 (Berkeley) %G%
 */

/*
 * Mount structure.
 * One allocated on every mount.
 * Used to find the super block.
 */
struct	ufsmount {
	struct	mount *um_mountp;	/* vfs structure for this filesystem */
	dev_t	um_dev;			/* device mounted */
	struct	vnode *um_devvp;	/* vnode for block device mounted */
	struct	fs *um_fs;		/* pointer to superblock */
	struct	vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
	struct	ucred *um_cred[MAXQUOTAS]; /* cred for access to quota file */
	time_t	um_btime[MAXQUOTAS];	/* block quota time limit */
	time_t	um_itime[MAXQUOTAS];	/* inode quota time limit */
	char	um_qflags[MAXQUOTAS];	/* quota specific flags, see below */
};
/*
 * Flags describing the state of quotas.
 */
#define	QTF_OPENING	0x01		/* Q_QUOTAON in progress */
#define	QTF_CLOSING	0x02		/* Q_QUOTAOFF in progress */

#ifdef KERNEL
/*
 * Convert mount ptr to ufsmount ptr.
 */
#define VFSTOUFS(mp)	((struct ufsmount *)((mp)->mnt_data))
#endif /* KERNEL */