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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 $
37 #ifndef _VFS_UFS_UFSMOUNT_H_
38 #define _VFS_UFS_UFSMOUNT_H_
41 * Arguments to mount UFS-based filesystems
44 char *fspec; /* block special device to mount */
45 struct export_args export; /* network export information */
49 * Arguments to mount MFS
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 */
61 MALLOC_DECLARE(M_UFSMNT);
72 /* This structure describes the UFS specific mount structure data. */
74 struct mount *um_mountp; /* filesystem vfs structure */
75 cdev_t um_dev; /* device mounted */
76 struct vnode *um_devvp; /* block device mounted vnode */
78 struct fs *um_fs; /* FFS */
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 ufs_time_t um_btime[MAXQUOTAS]; /* block quota time limit */
85 ufs_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 struct inode **um_ihashtbl; /* inum to inode map */
92 u_long um_ihash; /* size of hash table - 1 */
96 * Flags describing the state of quotas.
98 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
99 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
101 /* Convert mount ptr to ufsmount ptr. */
102 #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data))
105 * Macros to access filesystem parameters in the ufsmount structure.
108 #define MNINDIR(ump) ((ump)->um_nindir)
109 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
110 #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)
113 #endif /* !_VFS_UFS_UFSMOUNT_H_ */