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29 * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95
30 * $FreeBSD: src/sys/ufs/ufs/ufsmount.h,v 1.17 1999/12/29 04:55:06 peter Exp $
33 #ifndef _VFS_GNU_EXT2FS_EXT2MOUNT_H_
34 #define _VFS_GNU_EXT2FS_EXT2MOUNT_H_
37 * Arguments to mount UFS-based filesystems
40 char *fspec; /* block special device to mount */
41 struct export_args export; /* network export information */
45 * Arguments to mount MFS
48 char *fspec; /* name to export for statfs */
49 struct export_args export; /* if exported MFSes are supported */
50 caddr_t base; /* base of filesystem in memory */
51 u_long size; /* size of filesystem */
57 MALLOC_DECLARE(M_EXT2MNT);
68 /* This structure describes the UFS specific mount structure data. */
70 struct mount *um_mountp; /* filesystem vfs structure */
71 cdev_t um_dev; /* device mounted */
72 struct vnode *um_devvp; /* block device mounted vnode */
74 struct ext2_sb_info *um_e2fs;
75 struct vnode *um_quotas[MAXQUOTAS]; /* pointer to quota files */
76 struct ucred *um_cred[MAXQUOTAS]; /* quota file access cred */
77 u_long um_nindir; /* indirect ptrs per block */
78 u_long um_bptrtodb; /* indir ptr to disk block */
79 u_long um_seqinc; /* inc between seq blocks */
80 time_t um_btime[MAXQUOTAS]; /* block quota time limit */
81 time_t um_itime[MAXQUOTAS]; /* inode quota time limit */
82 char um_qflags[MAXQUOTAS]; /* quota specific flags */
83 struct netexport um_export; /* export information */
84 int64_t um_savedmaxfilesize; /* XXX - limit maxfilesize */
85 struct malloc_type *um_malloctype; /* The inodes malloctype */
86 int um_i_effnlink_valid; /* i_effnlink valid? */
87 int (*um_blkatoff) (struct vnode *, off_t, char **, struct buf **);
88 int (*um_truncate) (struct vnode *, off_t, int, struct ucred *);
89 int (*um_update) (struct vnode *, int);
90 int (*um_valloc) (struct vnode *, int, struct ucred *, struct vnode **);
91 int (*um_vfree) (struct vnode *, ino_t, int);
94 #define um_e2fsb um_e2fs->s_es
96 #define EXT2_BLKATOFF(aa, bb, cc, dd) VFSTOEXT2((aa)->v_mount)->um_blkatoff(aa, bb, cc, dd)
97 #define EXT2_TRUNCATE(aa, bb, cc, dd) VFSTOEXT2((aa)->v_mount)->um_truncate(aa, bb, cc, dd)
98 #define EXT2_UPDATE(aa, bb) VFSTOEXT2((aa)->v_mount)->um_update(aa, bb)
99 #define EXT2_VALLOC(aa, bb, cc, dd) VFSTOEXT2((aa)->v_mount)->um_valloc(aa, bb, cc, dd)
100 #define EXT2_VFREE(aa, bb, cc) VFSTOEXT2((aa)->v_mount)->um_vfree(aa, bb, cc)
103 * Flags describing the state of quotas.
105 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */
106 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */
108 /* Convert mount ptr to ext2_mount ptr. */
109 #define VFSTOEXT2(mp) ((struct ext2_mount *)((mp)->mnt_data))
112 * Macros to access filesystem parameters in the ext2_mount structure.
115 #define MNINDIR(ump) ((ump)->um_nindir)
116 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb)
117 #define is_sequential(ump, a, b) ((b) == (a) + ump->um_seqinc)
120 #endif /* !_VFS_GNU_EXT2FS_EXT2MOUNT_H_ */