projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 0dc98f87 KM |
1 | /* |
| 2 | * Copyright (c) 1989 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| b702c21d | 5 | * %sccs.include.redist.c% |
| 0dc98f87 | 6 | * |
| 0b7a7647 | 7 | * @(#)mfsnode.h 7.13 (Berkeley) %G% |
| 0dc98f87 KM |
8 | */ |
| 9 | ||
| 10 | /* | |
| 13eb326e | 11 | * This structure defines the control data for the memory based file system. |
| 0dc98f87 KM |
12 | */ |
| 13 | ||
| 14 | struct mfsnode { | |
| 15 | struct vnode *mfs_vnode; /* vnode associated with this mfsnode */ | |
| 16 | caddr_t mfs_baseoff; /* base of file system in memory */ | |
| 17 | long mfs_size; /* size of memory file system */ | |
| 18 | pid_t mfs_pid; /* supporting process pid */ | |
| 19 | struct buf *mfs_buflist; /* list of I/O requests */ | |
| 20 | long mfs_spare[4]; | |
| 21 | }; | |
| 22 | ||
| 23 | /* | |
| 24 | * Convert between mfsnode pointers and vnode pointers | |
| 25 | */ | |
| 26 | #define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data) | |
| 27 | #define MFSTOV(mfsp) ((mfsp)->mfs_vnode) | |
| 5b881f30 | 28 | |
| 13eb326e | 29 | /* Prototypes for MFS operations on vnodes. */ |
| 9342689a JH |
30 | #define mfs_lookup ((int (*) __P((struct vop_lookup_args *)))mfs_badop) |
| 31 | #define mfs_create ((int (*) __P((struct vop_create_args *)))mfs_badop) | |
| 32 | #define mfs_mknod ((int (*) __P((struct vop_mknod_args *)))mfs_badop) | |
| 33 | #define mfs_access ((int (*) __P((struct vop_access_args *)))mfs_badop) | |
| 34 | #define mfs_getattr ((int (*) __P((struct vop_getattr_args *)))mfs_badop) | |
| 35 | #define mfs_setattr ((int (*) __P((struct vop_setattr_args *)))mfs_badop) | |
| 36 | #define mfs_read ((int (*) __P((struct vop_read_args *)))mfs_badop) | |
| 37 | #define mfs_write ((int (*) __P((struct vop_write_args *)))mfs_badop) | |
| 38 | #define mfs_select ((int (*) __P((struct vop_select_args *)))mfs_badop) | |
| 39 | #define mfs_mmap ((int (*) __P((struct vop_mmap_args *)))mfs_badop) | |
| 9342689a JH |
40 | #define mfs_seek ((int (*) __P((struct vop_seek_args *)))mfs_badop) |
| 41 | #define mfs_remove ((int (*) __P((struct vop_remove_args *)))mfs_badop) | |
| 42 | #define mfs_link ((int (*) __P((struct vop_link_args *)))mfs_badop) | |
| 43 | #define mfs_rename ((int (*) __P((struct vop_rename_args *)))mfs_badop) | |
| 44 | #define mfs_mkdir ((int (*) __P((struct vop_mkdir_args *)))mfs_badop) | |
| 45 | #define mfs_rmdir ((int (*) __P((struct vop_rmdir_args *)))mfs_badop) | |
| 46 | #define mfs_symlink ((int (*) __P((struct vop_symlink_args *)))mfs_badop) | |
| 47 | #define mfs_readdir ((int (*) __P((struct vop_readdir_args *)))mfs_badop) | |
| 48 | #define mfs_readlink ((int (*) __P((struct vop_readlink_args *)))mfs_badop) | |
| 49 | #define mfs_abortop ((int (*) __P((struct vop_abortop_args *)))mfs_badop) | |
| 50 | #define mfs_lock ((int (*) __P((struct vop_lock_args *)))nullop) | |
| 51 | #define mfs_unlock ((int (*) __P((struct vop_unlock_args *)))nullop) | |
| 52 | #define mfs_islocked ((int (*) __P((struct vop_islocked_args *)))nullop) | |
| 53 | #define mfs_advlock ((int (*) __P((struct vop_advlock_args *)))mfs_badop) | |
| 54 | #define mfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *)))mfs_badop) | |
| 9342689a JH |
55 | #define mfs_valloc ((int (*) __P((struct vop_valloc_args *)))mfs_badop) |
| 56 | #define mfs_vfree ((int (*) __P((struct vop_vfree_args *)))mfs_badop) | |
| 57 | #define mfs_truncate ((int (*) __P((struct vop_truncate_args *)))mfs_badop) | |
| b4c0a53f KM |
58 | #define mfs_update ((int (*) __P((struct vop_update_args *)))mfs_badop) |
| 59 | #define mfs_bwrite ((int (*) __P((struct vop_bwrite_args *)))vn_bwrite) |