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/*
* Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* 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.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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.
*/
/* $arla: xfs_fs.h,v 1.22 2002/12/19 09:49:19 lha Exp $ */
#ifndef _xfs_h
#define _xfs_h
#include <sys/types.h>
#include <xfs/xfs_common.h>
#include <xfs/xfs_node.h>
#include <xfs/xfs_attr.h>
#define NNNPFS 2 /* maximal number of filesystems on a single device */
/*
* Filesystem struct.
*/
struct xfs {
u_int status; /* Inited, opened or mounted */
#define NNPFS_MOUNTED 0x1
struct mount *mp;
struct xfs_node *root;
u_int nnodes;
int fd;
struct xfs_nodelist_head nodehead;
};
#ifdef __osf__
#ifdef HAVE_STRUCT_MOUNT_M_INFO
#define VFS_TO_NNPFS(v) ((struct xfs *) ((v)->m_info))
#define VFS_ASSIGN(v, val) do { (v)->m_info = (void *) (val); } while (0)
#else
#define VFS_TO_NNPFS(v) ((struct xfs *) ((v)->m_data))
#define VFS_ASSIGN(v, val) do { (v)->m_data = (void *) (val); } while (0)
#endif
#else
#define VFS_TO_NNPFS(v) ((struct xfs *) ((v)->mnt_data))
#define VFS_ASSIGN(v, val) do { (v)->mnt_data = (void *) (val); } while (0)
#endif
#define NNPFS_TO_VFS(x) ((x)->mp)
#define NNPFS_FROM_VNODE(vp) VFS_TO_NNPFS((vp)->v_mount)
#define NNPFS_FROM_XNODE(xp) NNPFS_FROM_VNODE(XNODE_TO_VNODE(xp))
extern struct xfs xfs[];
extern struct vnodeops xfs_vnodeops;
int new_xfs_node(struct xfs *, struct xfs_msg_node *, struct xfs_node **,
d_thread_t *);
void free_xfs_node(struct xfs_node *);
int free_all_xfs_nodes(struct xfs *, int, int);
int xfs_dnlc_enter(struct vnode *, xfs_componentname *, struct vnode *);
int xfs_dnlc_enter_name(struct vnode *, const char *, struct vnode *);
void xfs_dnlc_purge_mp(struct mount *);
void xfs_dnlc_purge(struct vnode *);
int xfs_dnlc_lookup(struct vnode *, xfs_componentname *, struct vnode **);
int xfs_dnlc_lookup_name(struct vnode *, const char *, struct vnode **);
void vattr2xfs_attr(const struct vattr *, struct xfs_attr *);
void xfs_attr2vattr(const struct xfs_attr *, struct vattr *, int);
int xfs_has_pag(const struct xfs_node *, xfs_pag_t);
#endif /* _xfs_h */
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