1 /* $NetBSD: lfs_extern.h,v 1.59.2.1 2004/05/23 10:44:28 tron Exp $ */
2
3 /*-
4 * Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Konrad E. Schroder <perseant@hhhh.org>.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38 /*-
39 * Copyright (c) 1991, 1993, 1994
40 * The Regents of the University of California. All rights reserved.
41 *
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
44 * are met:
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 * SUCH DAMAGE.
65 *
66 * @(#)lfs_extern.h 8.6 (Berkeley) 5/8/95
67 */
68
69 #ifndef _UFS_LFS_LFS_EXTERN_H_
70 #define _UFS_LFS_LFS_EXTERN_H_
71
72 #ifdef _KERNEL
73 #include <sys/mallocvar.h>
74
75 MALLOC_DECLARE(M_SEGMENT);
76 #endif
77
78 /* Copied from ext2fs for ITIMES. XXX This is a bogus use of v_tag. */
79 #define IS_LFS_VNODE(vp) (vp->v_tag == VT_LFS)
80
81 /*
82 * Sysctl values for LFS.
83 */
84 #define LFS_WRITEINDIR 1 /* flush indirect blocks on non-checkpoint writes */
85 #define LFS_CLEAN_VNHEAD 2 /* put prev unrefed cleaned vnodes on head of free list */
86 #define LFS_DOSTATS 3
87 #define LFS_MAXPAGES 4
88 #define LFS_MAXID 5
89
90 #define LFS_NAMES { \
91 { 0, 0 }, \
92 { "flushindir", CTLTYPE_INT }, \
93 { "clean_vnhead", CTLTYPE_INT }, \
94 { "dostats", CTLTYPE_INT }, \
95 { "maxpages", CTLTYPE_INT }, \
96 }
97
98 struct fid;
99 struct mount;
100 struct nameidata;
101 struct proc;
102 struct statfs;
103 struct timeval;
104 struct inode;
105 struct uio;
106 struct mbuf;
107 struct ufs1_dinode;
108 struct buf;
109 struct vnode;
110 struct dlfs;
111 struct lfs;
112 struct segment;
113 struct ucred;
114 struct block_info;
115
116 extern int lfs_allclean_wakeup;
117 extern struct pool lfs_inode_pool; /* memory pool for inodes */
118 extern struct pool lfs_dinode_pool; /* memory pool for dinodes */
119 extern struct pool lfs_inoext_pool; /* memory pool for inode extension */
120
121 extern int locked_queue_count;
122 extern long locked_queue_bytes;
123 extern int lfs_subsys_pages;
124 extern int lfs_dirvcount;
125 extern struct simplelock lfs_subsys_lock;
126
127 __BEGIN_DECLS
128 /* lfs_alloc.c */
129 int lfs_rf_valloc(struct lfs *, ino_t, int, struct proc *, struct vnode **);
130 void lfs_vcreate(struct mount *, ino_t, struct vnode *);
131 /* lfs_bio.c */
132 int lfs_availwait(struct lfs *, int);
133 int lfs_bwrite_ext(struct buf *, int);
134 int lfs_fits(struct lfs *, int);
135 void lfs_flush_fs(struct lfs *, int);
136 void lfs_flush(struct lfs *, int);
137 int lfs_check(struct vnode *, daddr_t, int);
138 void lfs_freebuf(struct lfs *, struct buf *);
139 struct buf *lfs_newbuf(struct lfs *, struct vnode *, daddr_t, size_t, int);
140 void lfs_countlocked(int *, long *, char *);
141 int lfs_reserve(struct lfs *, struct vnode *, struct vnode *, int);
142
143 /* lfs_cksum.c */
144 u_int32_t cksum(void *, size_t);
145 u_int32_t lfs_cksum_part(void *, size_t, u_int32_t);
146 #define lfs_cksum_fold(sum) (sum)
147 u_int32_t lfs_sb_cksum(struct dlfs *);
148
149 /* lfs_debug.c */
150 #ifdef DEBUG
151 int lfs_bwrite_log(struct buf *, char *, int);
152 void lfs_dumplog(void);
153 void lfs_dump_super(struct lfs *);
154 void lfs_dump_dinode(struct ufs1_dinode *);
155 void lfs_check_bpp(struct lfs *, struct segment *, char *, int);
156 void lfs_check_segsum(struct lfs *, struct segment *, char *, int);
157 #endif /* DEBUG */
158
159 /* lfs_inode.c */
160 struct ufs1_dinode *lfs_ifind(struct lfs *, ino_t, struct buf *);
161
162 /* lfs_segment.c */
163 void lfs_imtime(struct lfs *);
164 int lfs_vflush(struct vnode *);
165 int lfs_segwrite(struct mount *, int);
166 void lfs_writefile(struct lfs *, struct segment *, struct vnode *);
167 int lfs_writeinode(struct lfs *, struct segment *, struct inode *);
168 int lfs_gatherblock(struct segment *, struct buf *, int *);
169 int lfs_gather(struct lfs *, struct segment *, struct vnode *, int (*match )(struct lfs *, struct buf *));
170 void lfs_update_single(struct lfs *, struct segment *, struct vnode *,
171 daddr_t, int32_t, int);
172 void lfs_updatemeta(struct segment *);
173 int lfs_initseg(struct lfs *);
174 int lfs_writeseg(struct lfs *, struct segment *);
175 void lfs_writesuper(struct lfs *, daddr_t);
176 int lfs_match_data(struct lfs *, struct buf *);
177 int lfs_match_indir(struct lfs *, struct buf *);
178 int lfs_match_dindir(struct lfs *, struct buf *);
179 int lfs_match_tindir(struct lfs *, struct buf *);
180 void lfs_callback(struct buf *);
181 int lfs_vref(struct vnode *);
182 void lfs_vunref(struct vnode *);
183 void lfs_vunref_head(struct vnode *);
184
185 /* lfs_subr.c */
186 void lfs_setup_resblks(struct lfs *);
187 void lfs_pad_check(unsigned char *, int, char *, int);
188 void lfs_free_resblks(struct lfs *);
189 void *lfs_malloc(struct lfs *, size_t, int);
190 void lfs_free(struct lfs *, void *, int);
191 int lfs_seglock(struct lfs *, unsigned long);
192 void lfs_segunlock(struct lfs *);
193 int lfs_writer_enter(struct lfs *, const char *);
194 void lfs_writer_leave(struct lfs *);
195
196 /* lfs_syscalls.c */
197 int lfs_fastvget(struct mount *, ino_t, daddr_t, struct vnode **, struct ufs1_dinode *);
198 struct buf *lfs_fakebuf(struct lfs *, struct vnode *, int, size_t, caddr_t);
199 int lfs_do_segclean(struct lfs *, unsigned long);
200 void lfs_fakebuf_iodone(struct buf *);
201 int lfs_segwait(fsid_t *, struct timeval *);
202 int lfs_bmapv(struct proc *, fsid_t *, struct block_info *, int);
203 int lfs_markv(struct proc *, fsid_t *, struct block_info *, int);
204
205 /* lfs_vfsops.c */
206 void lfs_init(void);
207 void lfs_reinit(void);
208 void lfs_done(void);
209 int lfs_mountroot(void);
210 int lfs_mount(struct mount *, const char *, void *, struct nameidata *, struct proc *);
211 int lfs_unmount(struct mount *, int, struct proc *);
212 int lfs_statfs(struct mount *, struct statfs *, struct proc *);
213 int lfs_sync(struct mount *, int, struct ucred *, struct proc *);
214 int lfs_vget(struct mount *, ino_t, struct vnode **);
215 int lfs_fhtovp(struct mount *, struct fid *, struct vnode **);
216 int lfs_vptofh(struct vnode *, struct fid *);
217 void lfs_vinit(struct mount *mp, struct vnode **);
218
219 /* lfs_vnops.c */
220 void lfs_mark_vnode(struct vnode *);
221 void lfs_unmark_vnode(struct vnode *);
222 void lfs_itimes(struct inode *, struct timespec *, struct timespec *,
223 struct timespec *);
224 int lfs_gop_alloc(struct vnode *, off_t, off_t, int, struct ucred *);
225 void lfs_gop_size(struct vnode *, off_t, off_t *, int);
226 int lfs_putpages_ext(void *, int);
227 int lfs_gatherpages(struct vnode *);
228
229 int lfs_balloc (void *);
230 int lfs_valloc (void *);
231 int lfs_vfree (void *);
232 int lfs_bwrite (void *);
233 int lfs_update (void *);
234 int lfs_truncate (void *);
235 int lfs_blkatoff (void *);
236 int lfs_fsync (void *);
237 int lfs_symlink (void *);
238 int lfs_mknod (void *);
239 int lfs_create (void *);
240 int lfs_mkdir (void *);
241 int lfs_read (void *);
242 int lfs_remove (void *);
243 int lfs_rmdir (void *);
244 int lfs_link (void *);
245 int lfs_mmap (void *);
246 int lfs_rename (void *);
247 int lfs_getattr (void *);
248 int lfs_setattr (void *);
249 int lfs_close (void *);
250 int lfsspec_close(void *);
251 int lfsfifo_close(void *);
252 int lfs_fcntl (void *);
253 int lfs_inactive (void *);
254 int lfs_reclaim (void *);
255 int lfs_strategy (void *);
256 int lfs_write (void *);
257 int lfs_getpages (void *);
258 int lfs_putpages (void *);
259
260 #ifdef SYSCTL_SETUP_PROTO
261 SYSCTL_SETUP_PROTO(sysctl_vfs_lfs_setup);
262 #endif /* SYSCTL_SETUP_PROTO */
263
264 __END_DECLS
265 extern int lfs_mount_type;
266 extern int (**lfs_vnodeop_p)(void *);
267 extern int (**lfs_specop_p)(void *);
268 extern int (**lfs_fifoop_p)(void *);
269 extern struct genfs_ops lfs_genfsops;
270
271 #endif /* !_UFS_LFS_LFS_EXTERN_H_ */
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