NetBSD/sbin/fsck_lfs/vnode.h

77 lines
2.8 KiB
C

/* $NetBSD: vnode.h,v 1.6 2021/09/17 22:41:48 christos Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Konrad E. Schroder <perseant@hhhh.org>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/queue.h>
#define VNODE_HASH_MAX 1024 /* Must be a PO2 */
#define VNODE_CACHE_SIZE 1024 /* Need not be a PO2 */
LIST_HEAD(ubuflists, ubuf);
LIST_HEAD(uvnodelst, uvnode);
LIST_HEAD(vgrlst, vget_reg);
struct uvnode {
int v_fd;
int (*v_strategy_op) (struct ubuf *);
int (*v_bwrite_op) (struct ubuf *);
int (*v_bmap_op) (struct uvnode *, daddr_t, daddr_t *);
u_int32_t v_uflag;
void *v_fs;
void *v_data;
#undef v_usecount
int v_usecount;
struct ubuflists v_cleanblkhd; /* clean blocklist head */
struct ubuflists v_dirtyblkhd; /* dirty blocklist head */
LIST_ENTRY(uvnode) v_mntvnodes;
LIST_ENTRY(uvnode) v_getvnodes;
};
struct vget_reg {
void *vgr_fs;
struct uvnode *(*vgr_func) (void *, ino_t);
LIST_ENTRY(vget_reg) vgr_list;
};
#define VOP_STRATEGY(bp) ((bp)->b_vp->v_strategy_op(bp))
#define VOP_BWRITE(bp) ((bp)->b_vp->v_bwrite_op(bp))
#define VOP_BMAP(vp, lbn, daddrp) ((vp)->v_bmap_op((vp), (lbn), (daddrp)))
extern int fsdirty;
extern struct uvnodelst vnodelist;
int raw_vop_strategy(struct ubuf *);
int raw_vop_bwrite(struct ubuf *);
int raw_vop_bmap(struct uvnode *, daddr_t, daddr_t *);
void vnode_destroy(struct uvnode *);
struct uvnode *vget(void *, ino_t);
void register_vget(void *, struct uvnode *(*)(void *, ino_t));
void vfs_init(void);