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da7c5cc6 | 1 | /* |
e9720568 KM |
2 | * Copyright (c) 1982, 1986, 1989 Regents of the University of California. |
3 | * All rights reserved. | |
da7c5cc6 | 4 | * |
b702c21d | 5 | * %sccs.include.redist.c% |
e9720568 | 6 | * |
8f7d4b66 | 7 | * @(#)ufsmount.h 7.10 (Berkeley) %G% |
da7c5cc6 | 8 | */ |
8469a387 BJ |
9 | |
10 | /* | |
8f7d4b66 KB |
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). | |
8469a387 | 15 | */ |
8f7d4b66 KB |
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 | * The following is the inode switch. It is intended to provide | |
45 | * the interface between the Unix File System semantics and the | |
46 | * on-disk allocation, layout and I/O. | |
47 | */ | |
48 | int (*um_blkatoff) __P((struct inode *ip, | |
49 | off_t offset, char **res, struct buf **bpp)); | |
50 | int (*um_write) __P((struct vnode *vp, | |
51 | struct uio *uio, int ioflag, struct ucred *cred)); | |
52 | int (*um_iget) __P((struct inode *pip, | |
53 | ino_t ino, struct inode **ipp)); | |
54 | int (*um_ialloc) __P((struct inode *pip, | |
55 | int mode, struct ucred *cred, struct inode **ipp)); | |
56 | void (*um_ifree) __P((struct inode *pip, ino_t ino, int mode)); | |
57 | int (*um_itrunc) __P((struct inode *oip, u_long length, int flags)); | |
58 | int (*um_iupdat) __P((struct inode *ip, | |
59 | struct timeval *ta, struct timeval *tm, int waitfor)); | |
60 | int (*um_bwrite) /* XXX changes */ | |
61 | __P((struct buf *bp)); | |
62 | int (*um_bmap) /* XXX changes */ | |
63 | __P((struct inode *ip, daddr_t bn, daddr_t *bnp)); | |
9f7af618 | 64 | }; |
e9720568 | 65 | /* |
ff9af398 | 66 | * Flags describing the state of quotas. |
e9720568 | 67 | */ |
8f7d4b66 KB |
68 | #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ |
69 | #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ | |
e9720568 | 70 | |
8f7d4b66 | 71 | /* Convert mount ptr to ufsmount ptr. */ |
82161bc8 | 72 | #define VFSTOUFS(mp) ((struct ufsmount *)((mp)->mnt_data)) |