usr/src/sys/ufs/ffs/ufsmount.h

/*
 * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)ufsmount.h	7.11 (Berkeley) %G%
 */

/*
 * The root inode is the root of the file system.  Inode 0 can't be used for
 * normal purposes and historically bad blocks were linked to inode 1, thus
 * the root inode is 2. (inode 1 is no longer used for this purpose, however
 * numerous dump tapes make this assumption, so we are stuck with it).
 */
#define	ROOTINO	((ino_t)2)

struct buf;
struct inode;
struct nameidata;
struct timeval;
struct ucred;
struct uio;
struct vnode;

/* This structure describes the UFS specific mount structure data. */
struct ufsmount {
	struct	mount *um_mountp;		/* filesystem vfs structure */
	dev_t	um_dev;				/* device mounted */
	struct	vnode *um_devvp;		/* block device mounted vnode */
	union {					/* pointer to superblock */
		struct	lfs *lfs;		/* LFS */
		struct	fs *fs;			/* FFS */
	} ufsmount_u;
#define	um_fs	ufsmount_u.fs
#define	um_lfs	ufsmount_u.lfs
	struct	vnode *um_quotas[MAXQUOTAS];	/* pointer to quota files */
	struct	ucred *um_cred[MAXQUOTAS];	/* quota file access cred */
	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 */
};
/*
 * Flags describing the state of quotas.
 */
#define	QTF_OPENING	0x01			/* Q_QUOTAON in progress */
#define	QTF_CLOSING	0x02			/* Q_QUOTAOFF in progress */

/* Convert mount ptr to ufsmount ptr. */
#define VFSTOUFS(mp)	((struct ufsmount *)((mp)->mnt_data))
Commit	Line	Data
	1	/*
	2	* Copyright (c) 1982, 1986, 1989 Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* %sccs.include.redist.c%
	6	*
	7	* @(#)ufsmount.h 7.11 (Berkeley) %G%
	8	*/
	9
	10	/*
	11	* The root inode is the root of the file system. Inode 0 can't be used for
	12	* normal purposes and historically bad blocks were linked to inode 1, thus
	13	* the root inode is 2. (inode 1 is no longer used for this purpose, however
	14	* numerous dump tapes make this assumption, so we are stuck with it).
	15	*/
	16	#define ROOTINO ((ino_t)2)
	17
	18	struct buf;
	19	struct inode;
	20	struct nameidata;
	21	struct timeval;
	22	struct ucred;
	23	struct uio;
	24	struct vnode;
	25
	26	/* This structure describes the UFS specific mount structure data. */
	27	struct ufsmount {
	28	struct mount um_mountp; / filesystem vfs structure */
	29	dev_t um_dev; /* device mounted */
	30	struct vnode um_devvp; / block device mounted vnode */
	31	union { /* pointer to superblock */
	32	struct lfs lfs; / LFS */
	33	struct fs fs; / FFS */
	34	} ufsmount_u;
	35	#define um_fs ufsmount_u.fs
	36	#define um_lfs ufsmount_u.lfs
	37	struct vnode um_quotas[MAXQUOTAS]; / pointer to quota files */
	38	struct ucred um_cred[MAXQUOTAS]; / quota file access cred */
	39	time_t um_btime[MAXQUOTAS]; /* block quota time limit */
	40	time_t um_itime[MAXQUOTAS]; /* inode quota time limit */
	41	char um_qflags[MAXQUOTAS]; /* quota specific flags */
	42	};
	43	/*
	44	* Flags describing the state of quotas.
	45	*/
	46	#define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
	47	#define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
	48
	49	/* Convert mount ptr to ufsmount ptr. */
	50	#define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))