hammer2: More hammer2 msg cleanup, get reconnect ioctl working
[dragonfly.git] / sys / vfs / hammer2 / hammer2.h
CommitLineData
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1/*
2 * Copyright (c) 2011-2012 The DragonFly Project. All rights reserved.
3 *
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@dragonflybsd.org>
6 * by Venkatesh Srinivas <vsrinivas@dragonflybsd.org>
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 * 3. Neither the name of The DragonFly Project nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific, prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
28 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
29 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
30 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
31 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
32 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36/*
37 * This header file contains structures used internally by the HAMMER2
38 * implementation. See hammer2_disk.h for on-disk structures.
39 */
40
41#ifndef _VFS_HAMMER2_HAMMER2_H_
42#define _VFS_HAMMER2_HAMMER2_H_
43
44#include <sys/param.h>
45#include <sys/types.h>
46#include <sys/kernel.h>
47#include <sys/conf.h>
48#include <sys/systm.h>
49#include <sys/tree.h>
50#include <sys/malloc.h>
51#include <sys/mount.h>
52#include <sys/vnode.h>
53#include <sys/proc.h>
54#include <sys/mountctl.h>
55#include <sys/priv.h>
56#include <sys/stat.h>
46558838 57#include <sys/thread.h>
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58#include <sys/globaldata.h>
59#include <sys/lockf.h>
60#include <sys/buf.h>
61#include <sys/queue.h>
62#include <sys/limits.h>
63#include <sys/buf2.h>
64#include <sys/signal2.h>
65#include <sys/tree.h>
66
67#include "hammer2_disk.h"
68#include "hammer2_mount.h"
2910a90c 69#include "hammer2_ioctl.h"
1ad77ed9 70#include "hammer2_ccms.h"
26bf1a36 71#include "hammer2_network.h"
703720e4 72
5c23d7f1 73struct hammer2_chain;
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74struct hammer2_inode;
75struct hammer2_mount;
e4e20f48 76struct hammer2_pfsmount;
10c86c4e 77struct hammer2_span;
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78struct hammer2_state;
79struct hammer2_msg;
703720e4 80
703720e4 81/*
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82 * The chain structure tracks blockref recursions all the way to
83 * the root volume. These consist of indirect blocks, inodes,
84 * and eventually the volume header.
85 *
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86 * The chain structure is embedded in the hammer2_mount, hammer2_inode,
87 * and other system memory structures. The chain structure typically
88 * implements the reference count and busy flag for the larger structure.
89 *
90 * It is always possible to track a chain element all the way back to the
91 * root by following the (parent) links. (index) is a type-dependent index
92 * in the parent indicating where in the parent the chain element resides.
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93 *
94 * When a blockref is added or deleted the related chain element is marked
95 * modified and all of its parents are marked SUBMODIFIED (the parent
96 * recursion can stop once we hit a node that is already marked SUBMODIFIED).
97 * A deleted chain element must remain intact until synchronized against
98 * its parent.
99 *
100 * The blockref at (parent, index) is not adjusted until the modified chain
101 * element is flushed and unmarked. Until then the child's blockref may
102 * not match the blockref at (parent, index).
50e4f8f4 103 */
ecc33e71 104RB_HEAD(hammer2_chain_tree, hammer2_chain);
26bf1a36 105RB_HEAD(hammer2_state_tree, hammer2_state);
a0ed3c24 106TAILQ_HEAD(flush_deferral_list, hammer2_chain);
5c23d7f1 107
50e4f8f4 108struct hammer2_chain {
46558838 109 ccms_cst_t cst; /* attr or data cst */
50e4f8f4 110 struct hammer2_blockref bref;
004f88b4 111 struct hammer2_blockref bref_flush; /* synchronized w/MOVED bit */
26bf1a36 112 struct hammer2_chain *parent; /* return chain to root */
ecc33e71 113 struct hammer2_chain_tree rbhead;
26bf1a36 114 struct hammer2_state *state; /* if active cache msg */
ecc33e71 115 RB_ENTRY(hammer2_chain) rbnode;
1c9f601e 116 TAILQ_ENTRY(hammer2_chain) flush_node; /* flush deferral list */
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117 union {
118 struct hammer2_inode *ip;
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119 struct hammer2_indblock *np;
120 struct hammer2_data *dp;
121 void *mem;
7cfa8da5 122 } u;
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123
124 struct buf *bp; /* buffer cache (ro) */
125 hammer2_media_data_t *data; /* modified copy of data (rw) */
866d5273 126 u_int bytes; /* physical size of data */
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127 int index; /* index in parent */
128 u_int refs;
5c23d7f1 129 u_int flags;
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130};
131
132typedef struct hammer2_chain hammer2_chain_t;
133
5c23d7f1 134int hammer2_chain_cmp(hammer2_chain_t *chain1, hammer2_chain_t *chain2);
ecc33e71 135RB_PROTOTYPE(hammer2_chain_tree, hammer2_chain, rbnode, hammer2_chain_cmp);
5c23d7f1 136
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137/*
138 * MOVED - This bit is set during the flush when the MODIFIED bit is cleared,
139 * indicating that the parent's blocktable must inherit a change to
140 * the bref (typically a block reallocation)
141 *
142 * It must also be set in situations where a chain is not MODIFIED
143 * but whos bref has changed (typically due to fields other than
144 * a block reallocation).
145 */
2910a90c 146#define HAMMER2_CHAIN_MODIFIED 0x00000001 /* active mods */
214f4a77 147#define HAMMER2_CHAIN_DIRTYEMBED 0x00000002 /* inode embedded */
a92f82c4 148#define HAMMER2_CHAIN_DIRTYBP 0x00000004 /* dirty on unlock */
73e441b9 149#define HAMMER2_CHAIN_SUBMODIFIED 0x00000008 /* 1+ subs modified */
b7926f31 150#define HAMMER2_CHAIN_DELETED 0x00000010
01eabad4 151#define HAMMER2_CHAIN_INITIAL 0x00000020 /* initial create */
c667909f 152#define HAMMER2_CHAIN_FLUSHED 0x00000040 /* flush on unlock */
28ee5f14 153#define HAMMER2_CHAIN_MOVED 0x00000080 /* bref changed */
37aa19df 154#define HAMMER2_CHAIN_IOFLUSH 0x00000100 /* bawrite on put */
1c9f601e 155#define HAMMER2_CHAIN_DEFERRED 0x00000200 /* on a deferral list*/
222d9e22 156#define HAMMER2_CHAIN_DESTROYED 0x00000400 /* destroying */
2910a90c 157#define HAMMER2_CHAIN_MODIFIED_AUX 0x00000800 /* hmp->vchain only */
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158#define HAMMER2_CHAIN_MODIFY_TID 0x00001000 /* mod updates field */
159#define HAMMER2_CHAIN_MOUNTED 0x00002000 /* PFS is mounted */
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160
161/*
162 * Flags passed to hammer2_chain_lookup() and hammer2_chain_next()
163 */
164#define HAMMER2_LOOKUP_NOLOCK 0x00000001 /* ref only */
8cce658d 165#define HAMMER2_LOOKUP_NODATA 0x00000002 /* data left NULL */
a0ed3c24 166#define HAMMER2_LOOKUP_SHARED 0x00000100
5c23d7f1 167
50e4f8f4 168/*
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169 * Flags passed to hammer2_chain_modify() and hammer2_chain_resize()
170 *
171 * NOTE: OPTDATA allows us to avoid instantiating buffers for INDIRECT
172 * blocks in the INITIAL-create state.
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173 *
174 * NOTE: NO_MODIFY_TID tells the function to not set HAMMER2_CHAIN_MODIFY_TID
175 * when marking the chain modified (used when a sub-chain modification
176 * propagates upward).
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177 */
178#define HAMMER2_MODIFY_NOSUB 0x00000001 /* do not set SUBMOD */
179#define HAMMER2_MODIFY_OPTDATA 0x00000002 /* data can be NULL */
4d5318eb 180#define HAMMER2_MODIFY_NO_MODIFY_TID 0x00000004
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181
182/*
183 * Flags passed to hammer2_chain_lock()
184 */
185#define HAMMER2_RESOLVE_NEVER 1
186#define HAMMER2_RESOLVE_MAYBE 2
187#define HAMMER2_RESOLVE_ALWAYS 3
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188#define HAMMER2_RESOLVE_MASK 0x0F
189
190#define HAMMER2_RESOLVE_SHARED 0x10
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191
192/*
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193 * Cluster different types of storage together for allocations
194 */
195#define HAMMER2_FREECACHE_INODE 0
196#define HAMMER2_FREECACHE_INDIR 1
197#define HAMMER2_FREECACHE_DATA 2
198#define HAMMER2_FREECACHE_UNUSED3 3
199#define HAMMER2_FREECACHE_TYPES 4
200
201/*
202 * BMAP read-ahead maximum parameters
203 */
204#define HAMMER2_BMAP_COUNT 16 /* max bmap read-ahead */
205#define HAMMER2_BMAP_BYTES (HAMMER2_PBUFSIZE * HAMMER2_BMAP_COUNT)
206
207/*
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208 * Misc
209 */
210#define HAMMER2_FLUSH_DEPTH_LIMIT 40 /* stack recursion limit */
211
212/*
5c23d7f1 213 * HAMMER2 IN-MEMORY CACHE OF MEDIA STRUCTURES
7cfa8da5 214 *
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215 * There is an in-memory representation of all on-media data structure.
216 *
217 * When accessed read-only the data will be mapped to the related buffer
218 * cache buffer.
219 *
220 * When accessed read-write (marked modified) a kmalloc()'d copy of the
221 * is created which can then be modified. The copy is destroyed when a
222 * filesystem block is allocated to replace it.
223 *
224 * Active inodes (those with vnodes attached) will maintain the kmalloc()'d
225 * copy for both the read-only and the read-write case. The combination of
226 * (bp) and (data) determines whether (data) was allocated or not.
227 *
228 * The in-memory representation may remain cached (for example in order to
229 * placemark clustering locks) even after the related data has been
230 * detached.
231 */
232
233/*
234 * A hammer2 inode.
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235 *
236 * NOTE: The inode's attribute CST which is also used to lock the inode
237 * is embedded in the chain (chain.cst) and aliased w/ attr_cst.
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238 */
239struct hammer2_inode {
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240 struct hammer2_mount *hmp; /* Global mount */
241 struct hammer2_pfsmount *pmp; /* PFS mount */
e028fa74 242 struct hammer2_inode *pip; /* parent inode */
703720e4 243 struct vnode *vp;
46558838 244 ccms_cst_t topo_cst; /* directory topology cst */
50e4f8f4 245 hammer2_chain_t chain;
5c23d7f1 246 struct hammer2_inode_data ip_data;
37aa19df 247 struct lockf advlock;
99535653 248 u_int depth; /* directory depth */
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249 hammer2_off_t delta_dcount; /* adjust data_count */
250 hammer2_off_t delta_icount; /* adjust inode_count */
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251};
252
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253typedef struct hammer2_inode hammer2_inode_t;
254
703720e4 255/*
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256 * A hammer2 indirect block
257 */
258struct hammer2_indblock {
259 hammer2_chain_t chain;
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260};
261
262typedef struct hammer2_indblock hammer2_indblock_t;
263
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264/*
265 * A hammer2 data block
266 */
267struct hammer2_data {
268 hammer2_chain_t chain;
269};
270
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271typedef struct hammer2_data hammer2_data_t;
272
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273struct hammer2_freecache {
274 hammer2_off_t bulk;
275 hammer2_off_t single;
276};
277
278typedef struct hammer2_freecache hammer2_freecache_t;
279
7cfa8da5 280/*
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281 * Structure used to represent a virtual circuit for a messaging
282 * route. Typically associated from hammer2_state but the hammer2_pfsmount
283 * structure also has one to represent the point-to-point link.
284 */
285struct hammer2_router {
286 struct hammer2_pfsmount *pmp;
287 struct hammer2_state *state; /* received LNK_SPAN state */
288 uint64_t target; /* target */
289};
290
291typedef struct hammer2_router hammer2_router_t;
292
293/*
e4e20f48 294 * Global (per device) mount structure for device (aka vp->v_mount->hmp)
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295 */
296struct hammer2_mount {
50e4f8f4 297 struct vnode *devvp; /* device vnode */
50e4f8f4 298 int ronly; /* read-only mount */
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299 int pmp_count; /* PFS mounts backed by us */
300 TAILQ_ENTRY(hammer2_mount) mntentry; /* hammer2_mntlist */
703720e4 301
5c23d7f1 302 struct malloc_type *minode;
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303 int ninodes;
304 int maxinodes;
703720e4 305
5c23d7f1 306 struct malloc_type *mchain;
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307 int nipstacks;
308 int maxipstacks;
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309 hammer2_chain_t vchain; /* anchor chain */
310 hammer2_chain_t *schain; /* super-root */
01eabad4 311 struct lock alloclk; /* lockmgr lock */
2910a90c 312 struct lock voldatalk; /* lockmgr lock */
703720e4 313
54eb943b 314 hammer2_volume_data_t voldata;
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315 hammer2_freecache_t freecache[HAMMER2_FREECACHE_TYPES]
316 [HAMMER2_MAX_RADIX+1];
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317};
318
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319typedef struct hammer2_mount hammer2_mount_t;
320
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321/*
322 * Per-PFS mount structure for device (aka vp->v_mount)
323 */
324struct hammer2_pfsmount {
325 struct mount *mp; /* kernel mount */
326 struct hammer2_mount *hmp; /* device global mount */
327 hammer2_chain_t *rchain; /* PFS root chain */
328 hammer2_inode_t *iroot; /* PFS root inode */
26bf1a36 329 struct malloc_type *mmsg;
609a8021 330 ccms_domain_t ccms_dom;
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331 struct netexport export; /* nfs export */
332 int ronly; /* read-only mount */
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333 struct file *msg_fp; /* cluster pipe->userland */
334 thread_t msgrd_td; /* cluster thread */
335 thread_t msgwr_td; /* cluster thread */
336 int msg_ctl; /* wakeup flags */
8c280d5d 337 int msg_seq; /* cluster msg sequence id */
70c3c3b7 338 uint32_t reserved01;
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339 struct lock msglk; /* lockmgr lock */
340 TAILQ_HEAD(, hammer2_msg) msgq; /* transmit queue */
1a34728c 341 struct hammer2_state *conn_state; /* active LNK_CONN state */
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342 struct hammer2_state *freerd_state; /* allocation cache */
343 struct hammer2_state *freewr_state; /* allocation cache */
344 struct hammer2_state_tree staterd_tree; /* active messages */
345 struct hammer2_state_tree statewr_tree; /* active messages */
10c86c4e 346 struct hammer2_router router;
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347};
348
349typedef struct hammer2_pfsmount hammer2_pfsmount_t;
350
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351/*
352 * msg_ctl flags (atomic)
353 */
354#define HAMMER2_CLUSTERCTL_KILL 0x00000001
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355#define HAMMER2_CLUSTERCTL_KILLRX 0x00000002 /* staged helper exit */
356#define HAMMER2_CLUSTERCTL_KILLTX 0x00000004 /* staged helper exit */
357#define HAMMER2_CLUSTERCTL_SLEEPING 0x00000008 /* interlocked w/msglk */
bfc3a7b1 358
26bf1a36 359/*
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360 * Transactional state structure, representing an open transaction. The
361 * transaction might represent a cache state (and thus have a chain
362 * association), or a VOP op, LNK_SPAN, or other things.
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363 */
364struct hammer2_state {
365 RB_ENTRY(hammer2_state) rbnode; /* indexed by msgid */
366 struct hammer2_pfsmount *pmp;
10c86c4e 367 struct hammer2_router *router; /* related LNK_SPAN route */
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368 uint32_t txcmd; /* mostly for CMDF flags */
369 uint32_t rxcmd; /* mostly for CMDF flags */
8c280d5d 370 uint64_t msgid; /* {spanid,msgid} uniq */
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371 int flags;
372 int error;
373 struct hammer2_chain *chain; /* msg associated w/chain */
374 struct hammer2_msg *msg;
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375 int (*func)(struct hammer2_state *, struct hammer2_msg *);
376 union {
377 void *any;
378 hammer2_pfsmount_t *pmp;
379 } any;
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380};
381
382#define HAMMER2_STATE_INSERTED 0x0001
383#define HAMMER2_STATE_DYNAMIC 0x0002
70c3c3b7 384#define HAMMER2_STATE_DELPEND 0x0004 /* transmit delete pending */
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385
386struct hammer2_msg {
387 TAILQ_ENTRY(hammer2_msg) qentry; /* serialized queue */
10c86c4e 388 struct hammer2_router *router;
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389 struct hammer2_state *state;
390 size_t hdr_size;
391 size_t aux_size;
392 char *aux_data;
42e2a62e 393 hammer2_msg_any_t any;
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394};
395
10c86c4e 396typedef struct hammer2_link hammer2_link_t;
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397typedef struct hammer2_state hammer2_state_t;
398typedef struct hammer2_msg hammer2_msg_t;
399
400int hammer2_state_cmp(hammer2_state_t *state1, hammer2_state_t *state2);
401RB_PROTOTYPE(hammer2_state_tree, hammer2_state, rbnode, hammer2_state_cmp);
402
403
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404#if defined(_KERNEL)
405
406MALLOC_DECLARE(M_HAMMER2);
407
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408#define VTOI(vp) ((hammer2_inode_t *)(vp)->v_data)
409#define ITOV(ip) ((ip)->vp)
410
e118c14f 411static __inline
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412hammer2_pfsmount_t *
413MPTOPMP(struct mount *mp)
703720e4 414{
e4e20f48 415 return ((hammer2_pfsmount_t *)mp->mnt_data);
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416}
417
e118c14f 418static __inline
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419hammer2_mount_t *
420MPTOHMP(struct mount *mp)
47902fef 421{
e4e20f48 422 return (((hammer2_pfsmount_t *)mp->mnt_data)->hmp);
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423}
424
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425extern struct vop_ops hammer2_vnode_vops;
426extern struct vop_ops hammer2_spec_vops;
427extern struct vop_ops hammer2_fifo_vops;
428
37aa19df 429extern int hammer2_debug;
01eabad4 430extern int hammer2_cluster_enable;
e708f8b9 431extern int hammer2_hardlink_enable;
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432extern long hammer2_iod_file_read;
433extern long hammer2_iod_meta_read;
434extern long hammer2_iod_indr_read;
435extern long hammer2_iod_file_write;
436extern long hammer2_iod_meta_write;
437extern long hammer2_iod_indr_write;
438extern long hammer2_iod_volu_write;
439extern long hammer2_ioa_file_read;
440extern long hammer2_ioa_meta_read;
441extern long hammer2_ioa_indr_read;
442extern long hammer2_ioa_file_write;
443extern long hammer2_ioa_meta_write;
444extern long hammer2_ioa_indr_write;
445extern long hammer2_ioa_volu_write;
37aa19df 446
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447/*
448 * hammer2_subr.c
449 */
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450void hammer2_inode_lock_ex(hammer2_inode_t *ip);
451void hammer2_inode_unlock_ex(hammer2_inode_t *ip);
9c2e0de0 452void hammer2_inode_lock_sh(hammer2_inode_t *ip);
54eb943b 453void hammer2_inode_unlock_sh(hammer2_inode_t *ip);
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454void hammer2_inode_busy(hammer2_inode_t *ip);
455void hammer2_inode_unbusy(hammer2_inode_t *ip);
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456void hammer2_voldata_lock(hammer2_mount_t *hmp);
457void hammer2_voldata_unlock(hammer2_mount_t *hmp);
e118c14f 458
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459void hammer2_mount_exlock(hammer2_mount_t *hmp);
460void hammer2_mount_shlock(hammer2_mount_t *hmp);
461void hammer2_mount_unlock(hammer2_mount_t *hmp);
703720e4 462
e028fa74 463int hammer2_get_dtype(hammer2_inode_t *ip);
cd4b3d92 464int hammer2_get_vtype(hammer2_inode_t *ip);
37494cab 465u_int8_t hammer2_get_obj_type(enum vtype vtype);
cd4b3d92 466void hammer2_time_to_timespec(u_int64_t xtime, struct timespec *ts);
b2b78aaa 467u_int64_t hammer2_timespec_to_time(struct timespec *ts);
37494cab 468u_int32_t hammer2_to_unix_xid(uuid_t *uuid);
b2b78aaa 469void hammer2_guid_to_uuid(uuid_t *uuid, u_int32_t guid);
e028fa74 470
7cfa8da5 471hammer2_key_t hammer2_dirhash(const unsigned char *name, size_t len);
6ba3b984 472int hammer2_bytes_to_radix(size_t bytes);
7cfa8da5 473
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474int hammer2_calc_logical(hammer2_inode_t *ip, hammer2_off_t uoff,
475 hammer2_key_t *lbasep, hammer2_key_t *leofp);
b2b78aaa 476void hammer2_update_time(uint64_t *timep);
8cce658d 477
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478/*
479 * hammer2_inode.c
480 */
54eb943b 481struct vnode *hammer2_igetv(hammer2_inode_t *ip, int *errorp);
ae183399 482
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483void hammer2_inode_lock_nlinks(hammer2_inode_t *ip);
484void hammer2_inode_unlock_nlinks(hammer2_inode_t *ip);
e4e20f48 485hammer2_inode_t *hammer2_inode_alloc(hammer2_pfsmount_t *pmp, void *data);
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486void hammer2_inode_free(hammer2_inode_t *ip);
487void hammer2_inode_ref(hammer2_inode_t *ip);
488void hammer2_inode_drop(hammer2_inode_t *ip);
866d5273 489int hammer2_inode_calc_alloc(hammer2_key_t filesize);
6934ae32 490
e4e20f48 491int hammer2_inode_create(hammer2_inode_t *dip,
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492 struct vattr *vap, struct ucred *cred,
493 const uint8_t *name, size_t name_len,
494 hammer2_inode_t **nipp);
6934ae32 495
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496int hammer2_inode_duplicate(hammer2_inode_t *dip,
497 hammer2_inode_t *oip, hammer2_inode_t **nipp,
498 const uint8_t *name, size_t name_len);
499int hammer2_inode_connect(hammer2_inode_t *dip, hammer2_inode_t *oip,
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500 const uint8_t *name, size_t name_len);
501
ae183399 502int hammer2_unlink_file(hammer2_inode_t *dip,
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503 const uint8_t *name, size_t name_len,
504 int isdir, hammer2_inode_t *retain_ip);
99535653 505int hammer2_hardlink_consolidate(hammer2_inode_t **ipp, hammer2_inode_t *tdip);
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506int hammer2_hardlink_deconsolidate(hammer2_inode_t *dip,
507 hammer2_chain_t **chainp, hammer2_inode_t **ipp);
508int hammer2_hardlink_find(hammer2_inode_t *dip, hammer2_chain_t **chainp,
509 hammer2_inode_t **ipp);
ae183399 510
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511/*
512 * hammer2_chain.c
513 */
2910a90c 514void hammer2_modify_volume(hammer2_mount_t *hmp);
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515hammer2_chain_t *hammer2_chain_alloc(hammer2_mount_t *hmp,
516 hammer2_blockref_t *bref);
517void hammer2_chain_free(hammer2_mount_t *hmp, hammer2_chain_t *chain);
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518void hammer2_chain_ref(hammer2_mount_t *hmp, hammer2_chain_t *chain);
519void hammer2_chain_drop(hammer2_mount_t *hmp, hammer2_chain_t *chain);
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520int hammer2_chain_lock(hammer2_mount_t *hmp, hammer2_chain_t *chain, int how);
521void hammer2_chain_moved(hammer2_mount_t *hmp, hammer2_chain_t *chain);
214f4a77 522void hammer2_chain_modify(hammer2_mount_t *hmp, hammer2_chain_t *chain,
01eabad4 523 int flags);
28ee5f14 524void hammer2_chain_resize(hammer2_inode_t *ip, hammer2_chain_t *chain,
01eabad4 525 int nradix, int flags);
5c23d7f1 526void hammer2_chain_unlock(hammer2_mount_t *hmp, hammer2_chain_t *chain);
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527hammer2_chain_t *hammer2_chain_find(hammer2_mount_t *hmp,
528 hammer2_chain_t *parent, int index);
232a50f9 529hammer2_chain_t *hammer2_chain_get(hammer2_mount_t *hmp,
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530 hammer2_chain_t *parent,
531 int index, int flags);
5c23d7f1 532hammer2_chain_t *hammer2_chain_lookup(hammer2_mount_t *hmp,
e028fa74 533 hammer2_chain_t **parentp,
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534 hammer2_key_t key_beg, hammer2_key_t key_end,
535 int flags);
7cfa8da5 536hammer2_chain_t *hammer2_chain_next(hammer2_mount_t *hmp,
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537 hammer2_chain_t **parentp,
538 hammer2_chain_t *chain,
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539 hammer2_key_t key_beg, hammer2_key_t key_end,
540 int flags);
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541hammer2_chain_t *hammer2_chain_create(hammer2_mount_t *hmp,
542 hammer2_chain_t *parent,
6934ae32 543 hammer2_chain_t *chain,
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544 hammer2_key_t key, int keybits,
545 int type, size_t bytes);
3ac6a319 546void hammer2_chain_delete(hammer2_mount_t *hmp, hammer2_chain_t *parent,
004f88b4 547 hammer2_chain_t *chain, int retain);
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548void hammer2_chain_flush(hammer2_mount_t *hmp, hammer2_chain_t *chain,
549 hammer2_tid_t modify_tid);
b7926f31 550void hammer2_chain_commit(hammer2_mount_t *hmp, hammer2_chain_t *chain);
50e4f8f4 551
df9ea374 552/*
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553 * hammer2_ioctl.c
554 */
555int hammer2_ioctl(hammer2_inode_t *ip, u_long com, void *data,
556 int fflag, struct ucred *cred);
557
558/*
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559 * hammer2_msg.c
560 */
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561int hammer2_state_msgrx(hammer2_msg_t *msg);
562int hammer2_state_msgtx(hammer2_msg_t *msg);
563void hammer2_state_cleanuprx(hammer2_msg_t *msg);
564void hammer2_state_cleanuptx(hammer2_msg_t *msg);
565int hammer2_msg_execute(hammer2_msg_t *msg);
26bf1a36 566void hammer2_state_free(hammer2_state_t *state);
10c86c4e 567void hammer2_msg_free(hammer2_msg_t *msg);
1a34728c 568hammer2_msg_t *hammer2_msg_alloc(hammer2_router_t *router, uint32_t cmd,
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569 int (*func)(hammer2_state_t *, hammer2_msg_t *),
570 void *data);
1a34728c 571void hammer2_msg_write(hammer2_msg_t *msg);
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572void hammer2_msg_reply(hammer2_msg_t *msg, uint32_t error);
573void hammer2_msg_result(hammer2_msg_t *msg, uint32_t error);
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574
575/*
576 * hammer2_msgops.c
577 */
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578int hammer2_msg_dbg_rcvmsg(hammer2_msg_t *msg);
579int hammer2_msg_adhoc_input(hammer2_msg_t *msg);
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580
581/*
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582 * hammer2_vfsops.c
583 */
584void hammer2_clusterctl_wakeup(hammer2_pfsmount_t *pmp);
585void hammer2_volconf_update(hammer2_pfsmount_t *pmp, int index);
586void hammer2_cluster_reconnect(hammer2_pfsmount_t *pmp, struct file *fp);
587
588/*
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589 * hammer2_freemap.c
590 */
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591hammer2_off_t hammer2_freemap_alloc(hammer2_mount_t *hmp,
592 int type, size_t bytes);
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593void hammer2_freemap_free(hammer2_mount_t *hmp, hammer2_off_t data_off,
594 int type);
df9ea374 595
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596#endif /* !_KERNEL */
597#endif /* !_VFS_HAMMER2_HAMMER2_H_ */