Annotation of sys/xfs/xfs_fs.h, Revision 1.1.1.1
1.1 nbrk 1: /*
2: * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
3: * (Royal Institute of Technology, Stockholm, Sweden).
4: * All rights reserved.
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: *
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: *
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: *
17: * 3. Neither the name of the Institute nor the names of its contributors
18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: */
33:
34: /* $arla: xfs_fs.h,v 1.22 2002/12/19 09:49:19 lha Exp $ */
35:
36: #ifndef _xfs_h
37: #define _xfs_h
38:
39: #include <sys/types.h>
40:
41: #include <xfs/xfs_common.h>
42: #include <xfs/xfs_node.h>
43: #include <xfs/xfs_attr.h>
44:
45: #define NNNPFS 2 /* maximal number of filesystems on a single device */
46:
47: /*
48: * Filesystem struct.
49: */
50:
51: struct xfs {
52: u_int status; /* Inited, opened or mounted */
53: #define NNPFS_MOUNTED 0x1
54: struct mount *mp;
55: struct xfs_node *root;
56: u_int nnodes;
57: int fd;
58: struct xfs_nodelist_head nodehead;
59: };
60:
61: #ifdef __osf__
62: #ifdef HAVE_STRUCT_MOUNT_M_INFO
63: #define VFS_TO_NNPFS(v) ((struct xfs *) ((v)->m_info))
64: #else
65: #define VFS_TO_NNPFS(v) ((struct xfs *) ((v)->m_data))
66: #endif
67: #else
68: #define VFS_TO_NNPFS(v) ((struct xfs *) ((v)->mnt_data))
69: #endif
70: #define NNPFS_TO_VFS(x) ((x)->mp)
71:
72: #define NNPFS_FROM_VNODE(vp) VFS_TO_NNPFS((vp)->v_mount)
73: #define NNPFS_FROM_XNODE(xp) NNPFS_FROM_VNODE(XNODE_TO_VNODE(xp))
74:
75: extern struct xfs xfs[];
76:
77: extern struct vnodeops xfs_vnodeops;
78:
79: int new_xfs_node(struct xfs *, struct xfs_msg_node *, struct xfs_node **,
80: d_thread_t *);
81: void free_xfs_node(struct xfs_node *);
82: int free_all_xfs_nodes(struct xfs *, int, int);
83:
84: int xfs_dnlc_enter(struct vnode *, xfs_componentname *, struct vnode *);
85: int xfs_dnlc_enter_name(struct vnode *, const char *, struct vnode *);
86: void xfs_dnlc_purge_mp(struct mount *);
87: void xfs_dnlc_purge(struct vnode *);
88: int xfs_dnlc_lookup(struct vnode *, xfs_componentname *, struct vnode **);
89: int xfs_dnlc_lookup_name(struct vnode *, const char *, struct vnode **);
90:
91: void vattr2xfs_attr(const struct vattr *, struct xfs_attr *);
92: void xfs_attr2vattr(const struct xfs_attr *, struct vattr *, int);
93:
94: int xfs_has_pag(const struct xfs_node *, xfs_pag_t);
95:
96: #endif /* _xfs_h */
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