genfs_node.h revision 1.2.4.2
1 1.2.4.2 fvdl /* $NetBSD: genfs_node.h,v 1.2.4.2 2001/10/01 12:47:18 fvdl Exp $ */ 2 1.2.4.2 fvdl 3 1.2.4.2 fvdl /* 4 1.2.4.2 fvdl * Copyright (c) 2001 Chuck Silvers. 5 1.2.4.2 fvdl * All rights reserved. 6 1.2.4.2 fvdl * 7 1.2.4.2 fvdl * Redistribution and use in source and binary forms, with or without 8 1.2.4.2 fvdl * modification, are permitted provided that the following conditions 9 1.2.4.2 fvdl * are met: 10 1.2.4.2 fvdl * 1. Redistributions of source code must retain the above copyright 11 1.2.4.2 fvdl * notice, this list of conditions and the following disclaimer. 12 1.2.4.2 fvdl * 2. Redistributions in binary form must reproduce the above copyright 13 1.2.4.2 fvdl * notice, this list of conditions and the following disclaimer in the 14 1.2.4.2 fvdl * documentation and/or other materials provided with the distribution. 15 1.2.4.2 fvdl * 3. All advertising materials mentioning features or use of this software 16 1.2.4.2 fvdl * must display the following acknowledgement: 17 1.2.4.2 fvdl * This product includes software developed by Chuck Silvers. 18 1.2.4.2 fvdl * 4. The name of the author may not be used to endorse or promote products 19 1.2.4.2 fvdl * derived from this software without specific prior written permission. 20 1.2.4.2 fvdl * 21 1.2.4.2 fvdl * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 1.2.4.2 fvdl * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 1.2.4.2 fvdl * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 1.2.4.2 fvdl * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 1.2.4.2 fvdl * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 1.2.4.2 fvdl * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 1.2.4.2 fvdl * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 1.2.4.2 fvdl * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 1.2.4.2 fvdl * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 1.2.4.2 fvdl * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 1.2.4.2 fvdl */ 32 1.2.4.2 fvdl 33 1.2.4.2 fvdl #ifndef _MISCFS_GENFS_GENFS_NODE_H_ 34 1.2.4.2 fvdl #define _MISCFS_GENFS_GENFS_NODE_H_ 35 1.2.4.2 fvdl 36 1.2.4.2 fvdl struct vm_page; 37 1.2.4.2 fvdl 38 1.2.4.2 fvdl struct genfs_ops { 39 1.2.4.2 fvdl void (*gop_size)(struct vnode *, off_t, off_t *); 40 1.2.4.2 fvdl int (*gop_alloc)(struct vnode *, off_t, off_t, int, struct ucred *); 41 1.2.4.2 fvdl int (*gop_write)(struct vnode *, struct vm_page **, int, int); 42 1.2.4.2 fvdl }; 43 1.2.4.2 fvdl 44 1.2.4.2 fvdl #define GOP_SIZE(vp, size, eobp) \ 45 1.2.4.2 fvdl (*VTOG(vp)->g_op->gop_size)((vp), (size), (eobp)) 46 1.2.4.2 fvdl #define GOP_ALLOC(vp, off, len, flags, cred) \ 47 1.2.4.2 fvdl (*VTOG(vp)->g_op->gop_alloc)((vp), (off), (len), (flags), (cred)) 48 1.2.4.2 fvdl #define GOP_WRITE(vp, pgs, npages, flags) \ 49 1.2.4.2 fvdl (*VTOG(vp)->g_op->gop_write)((vp), (pgs), (npages), (flags)) 50 1.2.4.2 fvdl 51 1.2.4.2 fvdl struct genfs_node { 52 1.2.4.2 fvdl struct genfs_ops *g_op; /* ops vector */ 53 1.2.4.2 fvdl struct lock g_glock; /* getpages lock */ 54 1.2.4.2 fvdl }; 55 1.2.4.2 fvdl 56 1.2.4.2 fvdl #define VTOG(vp) ((struct genfs_node *)(vp)->v_data) 57 1.2.4.2 fvdl 58 1.2.4.2 fvdl void genfs_size(struct vnode *, off_t, off_t *); 59 1.2.4.2 fvdl void genfs_node_init(struct vnode *, struct genfs_ops *); 60 1.2.4.2 fvdl int genfs_gop_write(struct vnode *, struct vm_page **, int, int); 61 1.2.4.2 fvdl 62 1.2.4.2 fvdl #endif /* _MISCFS_GENFS_GENFS_NODE_H_ */ 63
Indexes created Fri Oct 03 23:09:56 GMT 2025