genfs_node.h revision 1.3.2.2
1 1.3.2.2 thorpej /* $NetBSD: genfs_node.h,v 1.3.2.2 2002/01/10 20:01:34 thorpej Exp $ */ 2 1.3.2.2 thorpej 3 1.3.2.2 thorpej /* 4 1.3.2.2 thorpej * Copyright (c) 2001 Chuck Silvers. 5 1.3.2.2 thorpej * All rights reserved. 6 1.3.2.2 thorpej * 7 1.3.2.2 thorpej * Redistribution and use in source and binary forms, with or without 8 1.3.2.2 thorpej * modification, are permitted provided that the following conditions 9 1.3.2.2 thorpej * are met: 10 1.3.2.2 thorpej * 1. Redistributions of source code must retain the above copyright 11 1.3.2.2 thorpej * notice, this list of conditions and the following disclaimer. 12 1.3.2.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright 13 1.3.2.2 thorpej * notice, this list of conditions and the following disclaimer in the 14 1.3.2.2 thorpej * documentation and/or other materials provided with the distribution. 15 1.3.2.2 thorpej * 3. All advertising materials mentioning features or use of this software 16 1.3.2.2 thorpej * must display the following acknowledgement: 17 1.3.2.2 thorpej * This product includes software developed by Chuck Silvers. 18 1.3.2.2 thorpej * 4. The name of the author may not be used to endorse or promote products 19 1.3.2.2 thorpej * derived from this software without specific prior written permission. 20 1.3.2.2 thorpej * 21 1.3.2.2 thorpej * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 1.3.2.2 thorpej * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 1.3.2.2 thorpej * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 1.3.2.2 thorpej * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 1.3.2.2 thorpej * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 1.3.2.2 thorpej * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 1.3.2.2 thorpej * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 1.3.2.2 thorpej * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 1.3.2.2 thorpej * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 1.3.2.2 thorpej * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 1.3.2.2 thorpej */ 32 1.3.2.2 thorpej 33 1.3.2.2 thorpej #ifndef _MISCFS_GENFS_GENFS_NODE_H_ 34 1.3.2.2 thorpej #define _MISCFS_GENFS_GENFS_NODE_H_ 35 1.3.2.2 thorpej 36 1.3.2.2 thorpej struct vm_page; 37 1.3.2.2 thorpej 38 1.3.2.2 thorpej struct genfs_ops { 39 1.3.2.2 thorpej void (*gop_size)(struct vnode *, off_t, off_t *); 40 1.3.2.2 thorpej int (*gop_alloc)(struct vnode *, off_t, off_t, int, struct ucred *); 41 1.3.2.2 thorpej int (*gop_write)(struct vnode *, struct vm_page **, int, int); 42 1.3.2.2 thorpej }; 43 1.3.2.2 thorpej 44 1.3.2.2 thorpej #define GOP_SIZE(vp, size, eobp) \ 45 1.3.2.2 thorpej (*VTOG(vp)->g_op->gop_size)((vp), (size), (eobp)) 46 1.3.2.2 thorpej #define GOP_ALLOC(vp, off, len, flags, cred) \ 47 1.3.2.2 thorpej (*VTOG(vp)->g_op->gop_alloc)((vp), (off), (len), (flags), (cred)) 48 1.3.2.2 thorpej #define GOP_WRITE(vp, pgs, npages, flags) \ 49 1.3.2.2 thorpej (*VTOG(vp)->g_op->gop_write)((vp), (pgs), (npages), (flags)) 50 1.3.2.2 thorpej 51 1.3.2.2 thorpej struct genfs_node { 52 1.3.2.2 thorpej struct genfs_ops *g_op; /* ops vector */ 53 1.3.2.2 thorpej struct lock g_glock; /* getpages lock */ 54 1.3.2.2 thorpej }; 55 1.3.2.2 thorpej 56 1.3.2.2 thorpej #define VTOG(vp) ((struct genfs_node *)(vp)->v_data) 57 1.3.2.2 thorpej 58 1.3.2.2 thorpej void genfs_size(struct vnode *, off_t, off_t *); 59 1.3.2.2 thorpej void genfs_node_init(struct vnode *, struct genfs_ops *); 60 1.3.2.2 thorpej int genfs_gop_write(struct vnode *, struct vm_page **, int, int); 61 1.3.2.2 thorpej int genfs_compat_gop_write(struct vnode *, struct vm_page **, int, int); 62 1.3.2.2 thorpej 63 1.3.2.2 thorpej #endif /* _MISCFS_GENFS_GENFS_NODE_H_ */ 64
Indexes created Fri Oct 03 17:10:05 GMT 2025