1 /* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)mfsnode.h 8.3 (Berkeley) 05/19/95 8 */ 9 10 /* 11 * This structure defines the control data for the memory based file system. 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) 28 29 /* Prototypes for MFS operations on vnodes. */ 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) 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 *)))vop_nolock) 51 #define mfs_unlock ((int (*) __P((struct vop_unlock_args *)))vop_nounlock) 52 #define mfs_islocked ((int(*) __P((struct vop_islocked_args *)))vop_noislocked) 53 #define mfs_pathconf ((int (*) __P((struct vop_pathconf_args *)))mfs_badop) 54 #define mfs_advlock ((int (*) __P((struct vop_advlock_args *)))mfs_badop) 55 #define mfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *)))mfs_badop) 56 #define mfs_valloc ((int (*) __P((struct vop_valloc_args *)))mfs_badop) 57 #define mfs_vfree ((int (*) __P((struct vop_vfree_args *)))mfs_badop) 58 #define mfs_truncate ((int (*) __P((struct vop_truncate_args *)))mfs_badop) 59 #define mfs_update ((int (*) __P((struct vop_update_args *)))mfs_badop) 60 #define mfs_bwrite ((int (*) __P((struct vop_bwrite_args *)))vn_bwrite) 61