1 /* 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2022 Tomohiro Kusumi <tkusumi@netbsd.org> 5 * Copyright (c) 2011-2022 The DragonFly Project. All rights reserved. 6 * 7 * This code is derived from software contributed to The DragonFly Project 8 * by Matthew Dillon <dillon@dragonflybsd.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 * 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 3. Neither the name of The DragonFly Project nor the names of its 21 * contributors may be used to endorse or promote products derived 22 * from this software without specific, prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 27 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 28 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 29 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 30 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 31 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 32 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 34 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37 38 /* 39 * HAMMER2 IN-MEMORY CACHE OF MEDIA STRUCTURES 40 * 41 * This header file contains structures used internally by the HAMMER2 42 * implementation. See hammer2_disk.h for on-disk structures. 43 * 44 * There is an in-memory representation of all on-media data structure. 45 * Almost everything is represented by a hammer2_chain structure in-memory. 46 * Other higher-level structures typically map to chains. 47 * 48 * A great deal of data is accessed simply via its buffer cache buffer, 49 * which is mapped for the duration of the chain's lock. Hammer2 must 50 * implement its own buffer cache layer on top of the system layer to 51 * allow for different threads to lock different sub-block-sized buffers. 52 * 53 * When modifications are made to a chain a new filesystem block must be 54 * allocated. Multiple modifications do not typically allocate new blocks 55 * until the current block has been flushed. Flushes do not block the 56 * front-end unless the front-end operation crosses the current inode being 57 * flushed. 58 * 59 * The in-memory representation may remain cached (for example in order to 60 * placemark clustering locks) even after the related data has been 61 * detached. 62 */ 63 64 #ifndef _VFS_HAMMER2_HAMMER2_H_ 65 #define _VFS_HAMMER2_HAMMER2_H_ 66 67 #ifdef _KERNEL 68 #error "_KERNEL shouldn't be defined" 69 #endif 70 #ifdef _KERNEL_STRUCTURES 71 #error "_KERNEL_STRUCTURES shouldn't be defined" 72 #endif 73 74 #ifdef _KERNEL 75 #include <sys/param.h> 76 #endif 77 #include <sys/types.h> 78 #ifdef _KERNEL 79 #include <sys/kernel.h> 80 #endif 81 //#include <sys/conf.h> 82 #ifdef _KERNEL 83 #include <sys/systm.h> 84 #endif 85 //#include <sys/diskslice.h> 86 #include <sys/tree.h> 87 //#include <sys/malloc.h> 88 #include <sys/mount.h> 89 /* 90 #include <sys/vnode.h> 91 #include <sys/proc.h> 92 #include <sys/priv.h> 93 #include <sys/stat.h> 94 #include <sys/thread.h> 95 #include <sys/lockf.h> 96 #include <sys/buf.h> 97 */ 98 #include <sys/queue.h> 99 /* 100 #include <sys/limits.h> 101 #include <sys/dmsg.h> 102 #include <sys/mutex.h> 103 #include <sys/lock.h> 104 #include <sys/file.h> 105 #include <sys/objcache.h> 106 */ 107 108 #ifdef _KERNEL 109 #include <sys/signal2.h> 110 #include <sys/buf2.h> 111 #include <sys/mutex2.h> 112 #include <sys/spinlock2.h> 113 #endif 114 115 /* 116 #include "hammer2_xxhash.h" 117 #include "hammer2_disk.h" 118 #include "hammer2_mount.h" 119 #include "hammer2_ioctl.h" 120 */ 121 122 #include <sys/time.h> 123 #include <sys/vfscache.h> 124 #include <sys/errno.h> 125 126 #include <machine/atomic.h> 127 128 #include <unistd.h> 129 #include <stdio.h> 130 #include <stdlib.h> 131 #include <stdint.h> 132 #include <stdbool.h> 133 #include <string.h> 134 135 #include <vfs/hammer2/hammer2_disk.h> 136 #include <vfs/hammer2/hammer2_ioctl.h> 137 #include <vfs/hammer2/hammer2_mount.h> 138 #include <vfs/hammer2/hammer2_xxhash.h> 139 #include <mkfs_hammer2.h> 140 141 #include "hammer2_compat.h" 142 143 struct hammer2_io; 144 struct hammer2_chain; 145 struct hammer2_inode; 146 struct hammer2_depend; 147 struct hammer2_dev; 148 struct hammer2_pfs; 149 union hammer2_xop; 150 151 /* 152 * Mutex and lock shims. Hammer2 requires support for asynchronous and 153 * abortable locks, and both exclusive and shared spinlocks. Normal 154 * synchronous non-abortable locks can be substituted for spinlocks. 155 */ 156 /* 157 typedef mtx_t hammer2_mtx_t; 158 typedef mtx_state_t hammer2_mtx_state_t; 159 160 typedef struct spinlock hammer2_spin_t; 161 162 #define hammer2_mtx_ex mtx_lock_ex_quick 163 #define hammer2_mtx_ex_try mtx_lock_ex_try 164 #define hammer2_mtx_sh mtx_lock_sh_quick 165 #define hammer2_mtx_sh_again mtx_lock_sh_again 166 #define hammer2_mtx_sh_try mtx_lock_sh_try 167 #define hammer2_mtx_unlock mtx_unlock 168 #define hammer2_mtx_upgrade_try mtx_upgrade_try 169 #define hammer2_mtx_downgrade mtx_downgrade 170 #define hammer2_mtx_owned mtx_owned 171 #define hammer2_mtx_init mtx_init 172 #define hammer2_mtx_temp_release mtx_lock_temp_release 173 #define hammer2_mtx_temp_restore mtx_lock_temp_restore 174 #define hammer2_mtx_refs mtx_lockrefs 175 176 #define hammer2_spin_init spin_init 177 #define hammer2_spin_sh spin_lock_shared 178 #define hammer2_spin_ex spin_lock 179 #define hammer2_spin_unsh spin_unlock_shared 180 #define hammer2_spin_unex spin_unlock 181 #define hammer2_spin_lock_update spin_lock_update 182 #define hammer2_spin_unlock_update spin_unlock_update 183 */ 184 185 TAILQ_HEAD(hammer2_xop_list, hammer2_xop_head); 186 TAILQ_HEAD(hammer2_chain_list, hammer2_chain); 187 188 typedef struct hammer2_xop_list hammer2_xop_list_t; 189 190 /* 191 * Cap the dynamic calculation for the maximum number of dirty 192 * chains and dirty inodes allowed. 193 */ 194 #define HAMMER2_LIMIT_DIRTY_CHAINS (1024*1024) 195 #define HAMMER2_LIMIT_DIRTY_INODES (65536) 196 197 /* 198 * The chain structure tracks a portion of the media topology from the 199 * root (volume) down. Chains represent volumes, inodes, indirect blocks, 200 * data blocks, and freemap nodes and leafs. 201 * 202 * The chain structure utilizes a simple singly-homed topology and the 203 * chain's in-memory topology will move around as the chains do, due mainly 204 * to renames and indirect block creation. 205 * 206 * Block Table Updates 207 * 208 * Block table updates for insertions and updates are delayed until the 209 * flush. This allows us to avoid having to modify the parent chain 210 * all the way to the root. 211 * 212 * Block table deletions are performed immediately (modifying the parent 213 * in the process) because the flush code uses the chain structure to 214 * track delayed updates and the chain will be (likely) gone or moved to 215 * another location in the topology after a deletion. 216 * 217 * A prior iteration of the code tried to keep the relationship intact 218 * on deletes by doing a delete-duplicate operation on the chain, but 219 * it added way too much complexity to the codebase. 220 * 221 * Flush Synchronization 222 * 223 * The flush code must flush modified chains bottom-up. Because chain 224 * structures can shift around and are NOT topologically stable, 225 * modified chains are independently indexed for the flush. As the flush 226 * runs it modifies (or further modifies) and updates the parents, 227 * propagating the flush all the way to the volume root. 228 * 229 * Modifying front-end operations can occur during a flush but will block 230 * in two cases: (1) when the front-end tries to operate on the inode 231 * currently in the midst of being flushed and (2) if the front-end 232 * crosses an inode currently being flushed (such as during a rename). 233 * So, for example, if you rename directory "x" to "a/b/c/d/e/f/g/x" and 234 * the flusher is currently working on "a/b/c", the rename will block 235 * temporarily in order to ensure that "x" exists in one place or the 236 * other. 237 * 238 * Meta-data statistics are updated by the flusher. The front-end will 239 * make estimates but meta-data must be fully synchronized only during a 240 * flush in order to ensure that it remains correct across a crash. 241 * 242 * Multiple flush synchronizations can theoretically be in-flight at the 243 * same time but the implementation is not coded to handle the case and 244 * currently serializes them. 245 * 246 * Snapshots: 247 * 248 * Snapshots currently require the subdirectory tree being snapshotted 249 * to be flushed. The snapshot then creates a new super-root inode which 250 * copies the flushed blockdata of the directory or file that was 251 * snapshotted. 252 * 253 * Radix tree NOTES: 254 * 255 * - Note that the radix tree runs in powers of 2 only so sub-trees 256 * cannot straddle edges. 257 */ 258 RB_HEAD(hammer2_chain_tree, hammer2_chain); 259 260 struct hammer2_reptrack { 261 hammer2_spin_t spin; 262 struct hammer2_reptrack *next; 263 struct hammer2_chain *chain; 264 }; 265 266 /* 267 * Core topology for chain (embedded in chain). Protected by a spinlock. 268 */ 269 struct hammer2_chain_core { 270 hammer2_spin_t spin; 271 struct hammer2_reptrack *reptrack; 272 struct hammer2_chain_tree rbtree; /* sub-chains */ 273 int live_zero; /* blockref array opt */ 274 u_int live_count; /* live (not deleted) chains in tree */ 275 u_int chain_count; /* live + deleted chains under core */ 276 int generation; /* generation number (inserts only) */ 277 }; 278 279 typedef struct hammer2_chain_core hammer2_chain_core_t; 280 281 RB_HEAD(hammer2_io_tree, hammer2_io); 282 283 /* 284 * DIO - Management structure wrapping system buffer cache. 285 * 286 * HAMMER2 uses an I/O abstraction that allows it to cache and manipulate 287 * fixed-sized filesystem buffers frontend by variable-sized hammer2_chain 288 * structures. 289 */ 290 /* #define HAMMER2_IO_DEBUG */ 291 292 #ifdef HAMMER2_IO_DEBUG 293 #define HAMMER2_IO_DEBUG_ARGS , const char *file, int line 294 #define HAMMER2_IO_DEBUG_CALL , file, line 295 #define HAMMER2_IO_DEBUG_COUNT 2048 296 #define HAMMER2_IO_DEBUG_MASK (HAMMER2_IO_DEBUG_COUNT - 1) 297 #else 298 #define HAMMER2_IO_DEBUG_ARGS 299 #define HAMMER2_IO_DEBUG_CALL 300 #endif 301 302 struct hammer2_io { 303 RB_ENTRY(hammer2_io) rbnode; /* indexed by device offset */ 304 struct hammer2_dev *hmp; 305 struct m_vnode *devvp; 306 struct m_buf *bp; 307 off_t dbase; /* offset of devvp within volumes */ 308 off_t pbase; 309 uint64_t refs; 310 int psize; 311 int act; /* activity */ 312 int btype; /* approximate BREF_TYPE_* */ 313 int ticks; 314 int error; 315 #ifdef HAMMER2_IO_DEBUG 316 int debug_index; 317 #else 318 int unused01; 319 #endif 320 uint64_t dedup_valid; /* valid for dedup operation */ 321 uint64_t dedup_alloc; /* allocated / de-dupable */ 322 #ifdef HAMMER2_IO_DEBUG 323 const char *debug_file[HAMMER2_IO_DEBUG_COUNT]; 324 void *debug_td[HAMMER2_IO_DEBUG_COUNT]; 325 int debug_line[HAMMER2_IO_DEBUG_COUNT]; 326 uint64_t debug_refs[HAMMER2_IO_DEBUG_COUNT]; 327 #endif 328 }; 329 330 typedef struct hammer2_io hammer2_io_t; 331 332 #define HAMMER2_DIO_INPROG 0x8000000000000000LLU /* bio in progress */ 333 #define HAMMER2_DIO_GOOD 0x4000000000000000LLU /* dio->bp is stable */ 334 #define HAMMER2_DIO_WAITING 0x2000000000000000LLU /* wait on INPROG */ 335 #define HAMMER2_DIO_DIRTY 0x1000000000000000LLU /* flush last drop */ 336 #define HAMMER2_DIO_FLUSH 0x0800000000000000LLU /* immediate flush */ 337 338 #define HAMMER2_DIO_MASK 0x00FFFFFFFFFFFFFFLLU 339 340 /* 341 * Primary chain structure keeps track of the topology in-memory. 342 */ 343 struct hammer2_chain { 344 hammer2_mtx_t lock; 345 hammer2_chain_core_t core; 346 RB_ENTRY(hammer2_chain) rbnode; /* live chain(s) */ 347 hammer2_blockref_t bref; 348 struct hammer2_chain *parent; 349 struct hammer2_dev *hmp; 350 struct hammer2_pfs *pmp; /* A PFS or super-root (spmp) */ 351 352 struct lock diolk; /* xop focus interlock */ 353 hammer2_io_t *dio; /* physical data buffer */ 354 hammer2_media_data_t *data; /* data pointer shortcut */ 355 u_int bytes; /* physical data size */ 356 u_int flags; 357 u_int refs; 358 u_int lockcnt; 359 int error; /* on-lock data error state */ 360 int cache_index; /* heur speeds up lookup */ 361 362 TAILQ_ENTRY(hammer2_chain) lru_node; /* 0-refs LRU */ 363 }; 364 365 typedef struct hammer2_chain hammer2_chain_t; 366 367 int hammer2_chain_cmp(hammer2_chain_t *chain1, hammer2_chain_t *chain2); 368 RB_PROTOTYPE(hammer2_chain_tree, hammer2_chain, rbnode, hammer2_chain_cmp); 369 370 /* 371 * Passed to hammer2_chain_create(), causes methods to be inherited from 372 * parent. 373 */ 374 #define HAMMER2_METH_DEFAULT -1 375 376 /* 377 * Special notes on flags: 378 * 379 * INITIAL - This flag allows a chain to be created and for storage to 380 * be allocated without having to immediately instantiate the 381 * related buffer. The data is assumed to be all-zeros. It 382 * is primarily used for indirect blocks. 383 * 384 * MODIFIED - The chain's media data has been modified. Prevents chain 385 * free on lastdrop if still in the topology. 386 * 387 * UPDATE - Chain might not be modified but parent blocktable needs 388 * an update. Prevents chain free on lastdrop if still in 389 * the topology. 390 * 391 * BLKMAPPED - Indicates that the chain is present in the parent blockmap. 392 * 393 * BLKMAPUPD - Indicates that the chain is present but needs to be updated 394 * in the parent blockmap. 395 */ 396 #define HAMMER2_CHAIN_MODIFIED 0x00000001 /* dirty chain data */ 397 #define HAMMER2_CHAIN_ALLOCATED 0x00000002 /* kmalloc'd chain */ 398 #define HAMMER2_CHAIN_DESTROY 0x00000004 399 #define HAMMER2_CHAIN_DEDUPABLE 0x00000008 /* registered w/dedup */ 400 #define HAMMER2_CHAIN_DELETED 0x00000010 /* deleted chain */ 401 #define HAMMER2_CHAIN_INITIAL 0x00000020 /* initial create */ 402 #define HAMMER2_CHAIN_UPDATE 0x00000040 /* need parent update */ 403 #define HAMMER2_CHAIN_NOTTESTED 0x00000080 /* crc not generated */ 404 #define HAMMER2_CHAIN_TESTEDGOOD 0x00000100 /* crc tested good */ 405 #define HAMMER2_CHAIN_ONFLUSH 0x00000200 /* on a flush list */ 406 #define HAMMER2_CHAIN_UNUSED0400 0x00000400 407 #define HAMMER2_CHAIN_VOLUMESYNC 0x00000800 /* needs volume sync */ 408 #define HAMMER2_CHAIN_UNUSED1000 0x00001000 409 #define HAMMER2_CHAIN_COUNTEDBREFS 0x00002000 /* block table stats */ 410 #define HAMMER2_CHAIN_ONRBTREE 0x00004000 /* on parent RB tree */ 411 #define HAMMER2_CHAIN_ONLRU 0x00008000 /* on LRU list */ 412 #define HAMMER2_CHAIN_UNUSED10000 0x00010000 413 #define HAMMER2_CHAIN_RELEASE 0x00020000 /* don't keep around */ 414 #define HAMMER2_CHAIN_BLKMAPPED 0x00040000 /* present in blkmap */ 415 #define HAMMER2_CHAIN_BLKMAPUPD 0x00080000 /* +needs updating */ 416 #define HAMMER2_CHAIN_IOINPROG 0x00100000 /* I/O interlock */ 417 #define HAMMER2_CHAIN_IOSIGNAL 0x00200000 /* I/O interlock */ 418 #define HAMMER2_CHAIN_PFSBOUNDARY 0x00400000 /* super->pfs inode */ 419 #define HAMMER2_CHAIN_HINT_LEAF_COUNT 0x00800000 /* redo leaf count */ 420 #define HAMMER2_CHAIN_LRUHINT 0x01000000 /* was reused */ 421 422 #define HAMMER2_CHAIN_FLUSH_MASK (HAMMER2_CHAIN_MODIFIED | \ 423 HAMMER2_CHAIN_UPDATE | \ 424 HAMMER2_CHAIN_ONFLUSH | \ 425 HAMMER2_CHAIN_DESTROY) 426 427 /* 428 * Hammer2 error codes, used by chain->error and cluster->error. The error 429 * code is typically set on-lock unless no I/O was requested, and set on 430 * I/O otherwise. If set for a cluster it generally means that the cluster 431 * code could not find a valid copy to present. 432 * 433 * All H2 error codes are flags and can be accumulated by ORing them 434 * together. 435 * 436 * IO - An I/O error occurred 437 * CHECK - I/O succeeded but did not match the check code 438 * INCOMPLETE - A cluster is not complete enough to use, or 439 * a chain cannot be loaded because its parent has an error. 440 * 441 * NOTE: API allows callers to check zero/non-zero to determine if an error 442 * condition exists. 443 * 444 * NOTE: Chain's data field is usually NULL on an IO error but not necessarily 445 * NULL on other errors. Check chain->error, not chain->data. 446 */ 447 #define HAMMER2_ERROR_NONE 0 /* no error (must be 0) */ 448 #define HAMMER2_ERROR_EIO 0x00000001 /* device I/O error */ 449 #define HAMMER2_ERROR_CHECK 0x00000002 /* check code error */ 450 #define HAMMER2_ERROR_INCOMPLETE 0x00000004 /* incomplete cluster */ 451 #define HAMMER2_ERROR_DEPTH 0x00000008 /* tmp depth limit */ 452 #define HAMMER2_ERROR_BADBREF 0x00000010 /* illegal bref */ 453 #define HAMMER2_ERROR_ENOSPC 0x00000020 /* allocation failure */ 454 #define HAMMER2_ERROR_ENOENT 0x00000040 /* entry not found */ 455 #define HAMMER2_ERROR_ENOTEMPTY 0x00000080 /* dir not empty */ 456 #define HAMMER2_ERROR_EAGAIN 0x00000100 /* retry */ 457 #define HAMMER2_ERROR_ENOTDIR 0x00000200 /* not directory */ 458 #define HAMMER2_ERROR_EISDIR 0x00000400 /* is directory */ 459 #define HAMMER2_ERROR_EINPROGRESS 0x00000800 /* already running */ 460 #define HAMMER2_ERROR_ABORTED 0x00001000 /* aborted operation */ 461 #define HAMMER2_ERROR_EOF 0x00002000 /* end of scan */ 462 #define HAMMER2_ERROR_EINVAL 0x00004000 /* catch-all */ 463 #define HAMMER2_ERROR_EEXIST 0x00008000 /* entry exists */ 464 #define HAMMER2_ERROR_EDEADLK 0x00010000 465 #define HAMMER2_ERROR_ESRCH 0x00020000 466 #define HAMMER2_ERROR_ETIMEDOUT 0x00040000 467 468 /* 469 * Flags passed to hammer2_chain_lookup() and hammer2_chain_next() 470 * 471 * NOTES: 472 * NODATA - Asks that the chain->data not be resolved in order 473 * to avoid I/O. 474 * 475 * NODIRECT - Prevents a lookup of offset 0 in an inode from returning 476 * the inode itself if the inode is in DIRECTDATA mode 477 * (i.e. file is <= 512 bytes). Used by the synchronization 478 * code to prevent confusion. 479 * 480 * SHARED - The input chain is expected to be locked shared, 481 * and the output chain is locked shared. 482 * 483 * MATCHIND - Allows an indirect block / freemap node to be returned 484 * when the passed key range matches the radix. Remember 485 * that key_end is inclusive (e.g. {0x000,0xFFF}, 486 * not {0x000,0x1000}). 487 * 488 * (Cannot be used for remote or cluster ops). 489 * 490 * ALWAYS - Always resolve the data. If ALWAYS and NODATA are both 491 * missing, bulk file data is not resolved but inodes and 492 * other meta-data will. 493 */ 494 #define HAMMER2_LOOKUP_UNUSED0001 0x00000001 495 #define HAMMER2_LOOKUP_NODATA 0x00000002 /* data left NULL */ 496 #define HAMMER2_LOOKUP_NODIRECT 0x00000004 /* no offset=0 DD */ 497 #define HAMMER2_LOOKUP_SHARED 0x00000100 498 #define HAMMER2_LOOKUP_MATCHIND 0x00000200 /* return all chains */ 499 #define HAMMER2_LOOKUP_UNUSED0400 0x00000400 500 #define HAMMER2_LOOKUP_ALWAYS 0x00000800 /* resolve data */ 501 #define HAMMER2_LOOKUP_UNUSED1000 0x00001000 502 503 /* 504 * Flags passed to hammer2_chain_modify() and hammer2_chain_resize() 505 * 506 * NOTE: OPTDATA allows us to avoid instantiating buffers for INDIRECT 507 * blocks in the INITIAL-create state. 508 */ 509 #define HAMMER2_MODIFY_OPTDATA 0x00000002 /* data can be NULL */ 510 511 /* 512 * Flags passed to hammer2_chain_lock() 513 * 514 * NOTE: NONBLOCK is only used for hammer2_chain_repparent() and getparent(), 515 * other functions (e.g. hammer2_chain_lookup(), etc) can't handle its 516 * operation. 517 */ 518 #define HAMMER2_RESOLVE_NEVER 1 519 #define HAMMER2_RESOLVE_MAYBE 2 520 #define HAMMER2_RESOLVE_ALWAYS 3 521 #define HAMMER2_RESOLVE_MASK 0x0F 522 523 #define HAMMER2_RESOLVE_SHARED 0x10 /* request shared lock */ 524 #define HAMMER2_RESOLVE_LOCKAGAIN 0x20 /* another shared lock */ 525 #define HAMMER2_RESOLVE_UNUSED40 0x40 526 #define HAMMER2_RESOLVE_NONBLOCK 0x80 /* non-blocking */ 527 528 /* 529 * Flags passed to hammer2_chain_delete() 530 */ 531 #define HAMMER2_DELETE_PERMANENT 0x0001 532 533 /* 534 * Flags passed to hammer2_chain_insert() or hammer2_chain_rename() 535 * or hammer2_chain_create(). 536 */ 537 #define HAMMER2_INSERT_PFSROOT 0x0004 538 #define HAMMER2_INSERT_SAMEPARENT 0x0008 539 540 /* 541 * hammer2_freemap_adjust() 542 */ 543 #define HAMMER2_FREEMAP_DORECOVER 1 544 #if 0 545 #define HAMMER2_FREEMAP_DOMAYFREE 2 546 #define HAMMER2_FREEMAP_DOREALFREE 3 547 #endif 548 549 /* 550 * HAMMER2 cluster - A set of chains representing the same entity. 551 * 552 * hammer2_cluster typically represents a temporary set of representitive 553 * chains. The one exception is that a hammer2_cluster is embedded in 554 * hammer2_inode. This embedded cluster is ONLY used to track the 555 * representitive chains and cannot be directly locked. 556 * 557 * A cluster is usually temporary (and thus per-thread) for locking purposes, 558 * allowing us to embed the asynchronous storage required for cluster 559 * operations in the cluster itself and adjust the state and status without 560 * having to worry too much about SMP issues. 561 * 562 * The exception is the cluster embedded in the hammer2_inode structure. 563 * This is used to cache the cluster state on an inode-by-inode basis. 564 * Individual hammer2_chain structures not incorporated into clusters might 565 * also stick around to cache miscellanious elements. 566 * 567 * Because the cluster is a 'working copy' and is usually subject to cluster 568 * quorum rules, it is quite possible for us to end up with an insufficient 569 * number of live chains to execute an operation. If an insufficient number 570 * of chains remain in a working copy, the operation may have to be 571 * downgraded, retried, stall until the requisit number of chains are 572 * available, or possibly even error out depending on the mount type. 573 * 574 * A cluster's focus is set when it is locked. The focus can only be set 575 * to a chain still part of the synchronized set. 576 */ 577 #define HAMMER2_XOPFIFO 16 578 #define HAMMER2_XOPFIFO_MASK (HAMMER2_XOPFIFO - 1) 579 #define HAMMER2_XOPTHREADS_MIN 32 580 #define HAMMER2_XOPGROUPS_MIN 4 581 582 #define HAMMER2_MAXCLUSTER 8 583 #define HAMMER2_XOPMASK_CLUSTER ((uint64_t)((1LLU << HAMMER2_MAXCLUSTER) - 1)) 584 #define HAMMER2_XOPMASK_VOP ((uint64_t)0x0000000080000000LLU) 585 #define HAMMER2_XOPMASK_FIFOW ((uint64_t)0x0000000040000000LLU) 586 #define HAMMER2_XOPMASK_WAIT ((uint64_t)0x0000000020000000LLU) 587 #define HAMMER2_XOPMASK_FEED ((uint64_t)0x0000000100000000LLU) 588 589 #define HAMMER2_XOPMASK_ALLDONE (HAMMER2_XOPMASK_VOP | HAMMER2_XOPMASK_CLUSTER) 590 591 struct hammer2_cluster_item { 592 hammer2_chain_t *chain; 593 int error; 594 uint32_t flags; 595 }; 596 597 typedef struct hammer2_cluster_item hammer2_cluster_item_t; 598 599 /* 600 * INVALID - Invalid for focus, i.e. not part of synchronized set. 601 * Once set, this bit is sticky across operations. 602 * 603 * FEMOD - Indicates that front-end modifying operations can 604 * mess with this entry and MODSYNC will copy also 605 * effect it. 606 */ 607 #define HAMMER2_CITEM_INVALID 0x00000001 608 #define HAMMER2_CITEM_FEMOD 0x00000002 609 #define HAMMER2_CITEM_NULL 0x00000004 610 611 struct hammer2_cluster { 612 int refs; /* track for deallocation */ 613 int ddflag; 614 struct hammer2_pfs *pmp; 615 uint32_t flags; 616 int nchains; 617 int error; /* error code valid on lock */ 618 int focus_index; 619 hammer2_chain_t *focus; /* current focus (or mod) */ 620 hammer2_cluster_item_t array[HAMMER2_MAXCLUSTER]; 621 }; 622 623 typedef struct hammer2_cluster hammer2_cluster_t; 624 625 /* 626 * WRHARD - Hard mounts can write fully synchronized 627 * RDHARD - Hard mounts can read fully synchronized 628 * UNHARD - Unsynchronized masters present 629 * NOHARD - No masters visible 630 * WRSOFT - Soft mounts can write to at least the SOFT_MASTER 631 * RDSOFT - Soft mounts can read from at least a SOFT_SLAVE 632 * UNSOFT - Unsynchronized slaves present 633 * NOSOFT - No slaves visible 634 * RDSLAVE - slaves are accessible (possibly unsynchronized or remote). 635 * MSYNCED - All masters are fully synchronized 636 * SSYNCED - All known local slaves are fully synchronized to masters 637 * 638 * All available masters are always incorporated. All PFSs belonging to a 639 * cluster (master, slave, copy, whatever) always try to synchronize the 640 * total number of known masters in the PFSs root inode. 641 * 642 * A cluster might have access to many slaves, copies, or caches, but we 643 * have a limited number of cluster slots. Any such elements which are 644 * directly mounted from block device(s) will always be incorporated. Note 645 * that SSYNCED only applies to such elements which are directly mounted, 646 * not to any remote slaves, copies, or caches that could be available. These 647 * bits are used to monitor and drive our synchronization threads. 648 * 649 * When asking the question 'is any data accessible at all', then a simple 650 * test against (RDHARD|RDSOFT|RDSLAVE) gives you the answer. If any of 651 * these bits are set the object can be read with certain caveats: 652 * RDHARD - no caveats. RDSOFT - authoritative but might not be synchronized. 653 * and RDSLAVE - not authoritative, has some data but it could be old or 654 * incomplete. 655 * 656 * When both soft and hard mounts are available, data will be read and written 657 * via the soft mount only. But all might be in the cluster because 658 * background synchronization threads still need to do their work. 659 */ 660 #define HAMMER2_CLUSTER_INODE 0x00000001 /* embedded in inode struct */ 661 #define HAMMER2_CLUSTER_UNUSED2 0x00000002 662 #define HAMMER2_CLUSTER_LOCKED 0x00000004 /* cluster lks not recursive */ 663 #define HAMMER2_CLUSTER_WRHARD 0x00000100 /* hard-mount can write */ 664 #define HAMMER2_CLUSTER_RDHARD 0x00000200 /* hard-mount can read */ 665 #define HAMMER2_CLUSTER_UNHARD 0x00000400 /* unsynchronized masters */ 666 #define HAMMER2_CLUSTER_NOHARD 0x00000800 /* no masters visible */ 667 #define HAMMER2_CLUSTER_WRSOFT 0x00001000 /* soft-mount can write */ 668 #define HAMMER2_CLUSTER_RDSOFT 0x00002000 /* soft-mount can read */ 669 #define HAMMER2_CLUSTER_UNSOFT 0x00004000 /* unsynchronized slaves */ 670 #define HAMMER2_CLUSTER_NOSOFT 0x00008000 /* no slaves visible */ 671 #define HAMMER2_CLUSTER_MSYNCED 0x00010000 /* all masters synchronized */ 672 #define HAMMER2_CLUSTER_SSYNCED 0x00020000 /* known slaves synchronized */ 673 674 #define HAMMER2_CLUSTER_ANYDATA ( HAMMER2_CLUSTER_RDHARD | \ 675 HAMMER2_CLUSTER_RDSOFT | \ 676 HAMMER2_CLUSTER_RDSLAVE) 677 #if 0 678 #define HAMMER2_CLUSTER_RDOK ( HAMMER2_CLUSTER_RDHARD | \ 679 HAMMER2_CLUSTER_RDSOFT) 680 681 #define HAMMER2_CLUSTER_WROK ( HAMMER2_CLUSTER_WRHARD | \ 682 HAMMER2_CLUSTER_WRSOFT) 683 #endif 684 #define HAMMER2_CLUSTER_ZFLAGS ( HAMMER2_CLUSTER_WRHARD | \ 685 HAMMER2_CLUSTER_RDHARD | \ 686 HAMMER2_CLUSTER_WRSOFT | \ 687 HAMMER2_CLUSTER_RDSOFT | \ 688 HAMMER2_CLUSTER_MSYNCED | \ 689 HAMMER2_CLUSTER_SSYNCED) 690 691 RB_HEAD(hammer2_inode_tree, hammer2_inode); /* ip->rbnode */ 692 TAILQ_HEAD(inoq_head, hammer2_inode); /* ip->entry */ 693 TAILQ_HEAD(depq_head, hammer2_depend); /* depend->entry */ 694 695 struct hammer2_depend { 696 TAILQ_ENTRY(hammer2_depend) entry; 697 struct inoq_head sideq; 698 long count; 699 int pass2; 700 int unused01; 701 }; 702 703 typedef struct hammer2_depend hammer2_depend_t; 704 705 /* 706 * A hammer2 inode. 707 * 708 * NOTE: The inode-embedded cluster is never used directly for I/O (since 709 * it may be shared). Instead it will be replicated-in and synchronized 710 * back out if changed. 711 */ 712 struct hammer2_inode { 713 RB_ENTRY(hammer2_inode) rbnode; /* inumber lookup (HL) */ 714 TAILQ_ENTRY(hammer2_inode) entry; /* SYNCQ/SIDEQ */ 715 hammer2_depend_t *depend; /* non-NULL if SIDEQ */ 716 hammer2_depend_t depend_static; /* (in-place allocation) */ 717 hammer2_mtx_t lock; /* inode lock */ 718 hammer2_mtx_t truncate_lock; /* prevent truncates */ 719 struct hammer2_pfs *pmp; /* PFS mount */ 720 struct m_vnode *vp; 721 hammer2_spin_t cluster_spin; /* update cluster */ 722 hammer2_cluster_t cluster; 723 //struct lockf advlock; 724 u_int flags; 725 u_int refs; /* +vpref, +flushref */ 726 int ihash; /* xop worker distribution */ 727 uint8_t comp_heuristic; 728 hammer2_inode_meta_t meta; /* copy of meta-data */ 729 hammer2_off_t osize; 730 }; 731 732 typedef struct hammer2_inode hammer2_inode_t; 733 734 /* 735 * MODIFIED - Inode is in a modified state, ip->meta may have changes. 736 * RESIZED - Inode truncated (any) or inode extended beyond 737 * EMBEDDED_BYTES. 738 * 739 * SYNCQ - Inode is included in the current filesystem sync. The 740 * DELETING and CREATING flags will be acted upon. 741 * 742 * SIDEQ - Inode has likely been disconnected from the vnode topology 743 * and so is not visible to the vnode-based filesystem syncer 744 * code, but is dirty and must be included in the next 745 * filesystem sync. These inodes are moved to the SYNCQ at 746 * the time the sync occurs. 747 * 748 * Inodes are not placed on this queue simply because they have 749 * become dirty, if a vnode is attached. 750 * 751 * DELETING - Inode is flagged for deletion during the next filesystem 752 * sync. That is, the inode's chain is currently connected 753 * and must be deleting during the current or next fs sync. 754 * 755 * CREATING - Inode is flagged for creation during the next filesystem 756 * sync. That is, the inode's chain topology exists (so 757 * kernel buffer flushes can occur), but is currently 758 * disconnected and must be inserted during the current or 759 * next fs sync. If the DELETING flag is also set, the 760 * topology can be thrown away instead. 761 * 762 * If an inode that is already part of the current filesystem sync is 763 * modified by the frontend, including by buffer flushes, the inode lock 764 * code detects the SYNCQ flag and moves the inode to the head of the 765 * flush-in-progress, then blocks until the flush has gotten past it. 766 */ 767 #define HAMMER2_INODE_MODIFIED 0x0001 768 #define HAMMER2_INODE_UNUSED0002 0x0002 769 #define HAMMER2_INODE_UNUSED0004 0x0004 770 #define HAMMER2_INODE_ONRBTREE 0x0008 771 #define HAMMER2_INODE_RESIZED 0x0010 /* requires inode_chain_sync */ 772 #define HAMMER2_INODE_UNUSED0020 0x0020 773 #define HAMMER2_INODE_ISUNLINKED 0x0040 774 #define HAMMER2_INODE_UNUSED0080 0x0080 775 #define HAMMER2_INODE_SIDEQ 0x0100 /* on side processing queue */ 776 #define HAMMER2_INODE_NOSIDEQ 0x0200 /* disable sideq operation */ 777 #define HAMMER2_INODE_DIRTYDATA 0x0400 /* interlocks inode flush */ 778 #define HAMMER2_INODE_SYNCQ 0x0800 /* sync interlock, sequenced */ 779 #define HAMMER2_INODE_DELETING 0x1000 /* sync interlock, chain topo */ 780 #define HAMMER2_INODE_CREATING 0x2000 /* sync interlock, chain topo */ 781 #define HAMMER2_INODE_SYNCQ_WAKEUP 0x4000 /* sync interlock wakeup */ 782 #define HAMMER2_INODE_SYNCQ_PASS2 0x8000 /* force retry delay */ 783 784 #define HAMMER2_INODE_DIRTY (HAMMER2_INODE_MODIFIED | \ 785 HAMMER2_INODE_DIRTYDATA | \ 786 HAMMER2_INODE_DELETING | \ 787 HAMMER2_INODE_CREATING) 788 789 int hammer2_inode_cmp(hammer2_inode_t *ip1, hammer2_inode_t *ip2); 790 RB_PROTOTYPE2(hammer2_inode_tree, hammer2_inode, rbnode, hammer2_inode_cmp, 791 hammer2_tid_t); 792 793 /* 794 * Transaction management sub-structure under hammer2_pfs 795 */ 796 struct hammer2_trans { 797 uint32_t flags; 798 uint32_t sync_wait; 799 }; 800 801 typedef struct hammer2_trans hammer2_trans_t; 802 803 #define HAMMER2_TRANS_ISFLUSH 0x80000000 /* flush code */ 804 #define HAMMER2_TRANS_BUFCACHE 0x40000000 /* bio strategy */ 805 #define HAMMER2_TRANS_SIDEQ 0x20000000 /* run sideq */ 806 #define HAMMER2_TRANS_UNUSED10 0x10000000 807 #define HAMMER2_TRANS_WAITING 0x08000000 /* someone waiting */ 808 #define HAMMER2_TRANS_RESCAN 0x04000000 /* rescan sideq */ 809 #define HAMMER2_TRANS_MASK 0x00FFFFFF /* count mask */ 810 811 #define HAMMER2_FREEMAP_HEUR_NRADIX 4 /* pwr 2 PBUFRADIX-LBUFRADIX */ 812 #define HAMMER2_FREEMAP_HEUR_TYPES 8 813 #define HAMMER2_FREEMAP_HEUR_SIZE (HAMMER2_FREEMAP_HEUR_NRADIX * \ 814 HAMMER2_FREEMAP_HEUR_TYPES) 815 816 #define HAMMER2_DEDUP_HEUR_SIZE (65536 * 4) 817 #define HAMMER2_DEDUP_HEUR_MASK (HAMMER2_DEDUP_HEUR_SIZE - 1) 818 819 #define HAMMER2_FLUSH_TOP 0x0001 820 #define HAMMER2_FLUSH_ALL 0x0002 821 #define HAMMER2_FLUSH_INODE_STOP 0x0004 /* stop at sub-inode */ 822 #define HAMMER2_FLUSH_FSSYNC 0x0008 /* part of filesystem sync */ 823 824 825 /* 826 * Hammer2 support thread element. 827 * 828 * Potentially many support threads can hang off of hammer2, primarily 829 * off the hammer2_pfs structure. Typically: 830 * 831 * td x Nodes A synchronization thread for each node. 832 * td x Nodes x workers Worker threads for frontend operations. 833 * td x 1 Bioq thread for logical buffer writes. 834 * 835 * In addition, the synchronization thread(s) associated with the 836 * super-root PFS (spmp) for a node is responsible for automatic bulkfree 837 * and dedup scans. 838 */ 839 struct hammer2_thread { 840 struct hammer2_pfs *pmp; 841 struct hammer2_dev *hmp; 842 hammer2_xop_list_t xopq; 843 thread_t td; 844 uint32_t flags; 845 int clindex; /* cluster element index */ 846 int repidx; 847 char *scratch; /* MAXPHYS */ 848 }; 849 850 typedef struct hammer2_thread hammer2_thread_t; 851 852 #define HAMMER2_THREAD_UNMOUNTING 0x0001 /* unmount request */ 853 #define HAMMER2_THREAD_DEV 0x0002 /* related to dev, not pfs */ 854 #define HAMMER2_THREAD_WAITING 0x0004 /* thread in idle tsleep */ 855 #define HAMMER2_THREAD_REMASTER 0x0008 /* remaster request */ 856 #define HAMMER2_THREAD_STOP 0x0010 /* exit request */ 857 #define HAMMER2_THREAD_FREEZE 0x0020 /* force idle */ 858 #define HAMMER2_THREAD_FROZEN 0x0040 /* thread is frozen */ 859 #define HAMMER2_THREAD_XOPQ 0x0080 /* work pending */ 860 #define HAMMER2_THREAD_STOPPED 0x0100 /* thread has stopped */ 861 #define HAMMER2_THREAD_UNFREEZE 0x0200 862 863 #define HAMMER2_THREAD_WAKEUP_MASK (HAMMER2_THREAD_UNMOUNTING | \ 864 HAMMER2_THREAD_REMASTER | \ 865 HAMMER2_THREAD_STOP | \ 866 HAMMER2_THREAD_FREEZE | \ 867 HAMMER2_THREAD_XOPQ) 868 869 /* 870 * Support structure for dedup heuristic. 871 */ 872 struct hammer2_dedup { 873 hammer2_off_t data_off; 874 uint64_t data_crc; 875 uint32_t ticks; 876 uint32_t saved_error; 877 }; 878 879 typedef struct hammer2_dedup hammer2_dedup_t; 880 881 /* 882 * hammer2_xop - container for VOP/XOP operation (allocated, not on stack). 883 * 884 * This structure is used to distribute a VOP operation across multiple 885 * nodes. It provides a rendezvous for concurrent node execution and 886 * can be detached from the frontend operation to allow the frontend to 887 * return early. 888 * 889 * This structure also sequences operations on up to three inodes. 890 */ 891 typedef void (*hammer2_xop_func_t)(union hammer2_xop *xop, void *scratch, 892 int clindex); 893 894 struct hammer2_xop_desc { 895 hammer2_xop_func_t storage_func; /* local storage function */ 896 hammer2_xop_func_t dmsg_dispatch; /* dmsg dispatch function */ 897 hammer2_xop_func_t dmsg_process; /* dmsg processing function */ 898 const char *id; 899 }; 900 901 typedef struct hammer2_xop_desc hammer2_xop_desc_t; 902 903 struct hammer2_xop_fifo { 904 TAILQ_ENTRY(hammer2_xop_head) entry; 905 hammer2_chain_t *array[HAMMER2_XOPFIFO]; 906 int errors[HAMMER2_XOPFIFO]; 907 int ri; 908 int wi; 909 int flags; 910 hammer2_thread_t *thr; 911 }; 912 913 typedef struct hammer2_xop_fifo hammer2_xop_fifo_t; 914 915 #define HAMMER2_XOP_FIFO_RUN 0x0001 916 #define HAMMER2_XOP_FIFO_STALL 0x0002 917 918 struct hammer2_xop_head { 919 hammer2_xop_desc_t *desc; 920 hammer2_tid_t mtid; 921 struct hammer2_inode *ip1; 922 struct hammer2_inode *ip2; 923 struct hammer2_inode *ip3; 924 struct hammer2_inode *ip4; 925 uint64_t run_mask; 926 uint64_t chk_mask; 927 int flags; 928 int state; 929 int error; 930 hammer2_key_t collect_key; 931 char *name1; 932 size_t name1_len; 933 char *name2; 934 size_t name2_len; 935 hammer2_xop_fifo_t collect[HAMMER2_MAXCLUSTER]; 936 hammer2_cluster_t cluster; /* help collections */ 937 hammer2_io_t *focus_dio; 938 }; 939 940 typedef struct hammer2_xop_head hammer2_xop_head_t; 941 942 struct hammer2_xop_ipcluster { 943 hammer2_xop_head_t head; 944 }; 945 946 struct hammer2_xop_strategy { 947 hammer2_xop_head_t head; 948 hammer2_key_t lbase; 949 int finished; 950 hammer2_mtx_t lock; 951 struct bio *bio; 952 }; 953 954 struct hammer2_xop_readdir { 955 hammer2_xop_head_t head; 956 hammer2_key_t lkey; 957 }; 958 959 struct hammer2_xop_nresolve { 960 hammer2_xop_head_t head; 961 hammer2_key_t lhc; /* if name is NULL used lhc */ 962 }; 963 964 struct hammer2_xop_unlink { 965 hammer2_xop_head_t head; 966 int isdir; 967 int dopermanent; 968 }; 969 970 #define H2DOPERM_PERMANENT 0x01 971 #define H2DOPERM_FORCE 0x02 972 #define H2DOPERM_IGNINO 0x04 973 974 struct hammer2_xop_nrename { 975 hammer2_xop_head_t head; 976 hammer2_tid_t lhc; 977 int ip_key; 978 }; 979 980 struct hammer2_xop_scanlhc { 981 hammer2_xop_head_t head; 982 hammer2_key_t lhc; 983 }; 984 985 struct hammer2_xop_scanall { 986 hammer2_xop_head_t head; 987 hammer2_key_t key_beg; /* inclusive */ 988 hammer2_key_t key_end; /* inclusive */ 989 int resolve_flags; 990 int lookup_flags; 991 }; 992 993 struct hammer2_xop_lookup { 994 hammer2_xop_head_t head; 995 hammer2_key_t lhc; 996 }; 997 998 struct hammer2_xop_mkdirent { 999 hammer2_xop_head_t head; 1000 hammer2_dirent_head_t dirent; 1001 hammer2_key_t lhc; 1002 }; 1003 1004 struct hammer2_xop_create { 1005 hammer2_xop_head_t head; 1006 hammer2_inode_meta_t meta; /* initial metadata */ 1007 hammer2_key_t lhc; 1008 int flags; 1009 }; 1010 1011 struct hammer2_xop_destroy { 1012 hammer2_xop_head_t head; 1013 }; 1014 1015 struct hammer2_xop_fsync { 1016 hammer2_xop_head_t head; 1017 hammer2_inode_meta_t meta; 1018 hammer2_off_t osize; 1019 u_int ipflags; 1020 int clear_directdata; 1021 }; 1022 1023 struct hammer2_xop_unlinkall { 1024 hammer2_xop_head_t head; 1025 hammer2_key_t key_beg; 1026 hammer2_key_t key_end; 1027 }; 1028 1029 struct hammer2_xop_connect { 1030 hammer2_xop_head_t head; 1031 hammer2_key_t lhc; 1032 }; 1033 1034 struct hammer2_xop_flush { 1035 hammer2_xop_head_t head; 1036 }; 1037 1038 typedef struct hammer2_xop_readdir hammer2_xop_readdir_t; 1039 typedef struct hammer2_xop_nresolve hammer2_xop_nresolve_t; 1040 typedef struct hammer2_xop_unlink hammer2_xop_unlink_t; 1041 typedef struct hammer2_xop_nrename hammer2_xop_nrename_t; 1042 typedef struct hammer2_xop_ipcluster hammer2_xop_ipcluster_t; 1043 typedef struct hammer2_xop_strategy hammer2_xop_strategy_t; 1044 typedef struct hammer2_xop_mkdirent hammer2_xop_mkdirent_t; 1045 typedef struct hammer2_xop_create hammer2_xop_create_t; 1046 typedef struct hammer2_xop_destroy hammer2_xop_destroy_t; 1047 typedef struct hammer2_xop_fsync hammer2_xop_fsync_t; 1048 typedef struct hammer2_xop_unlinkall hammer2_xop_unlinkall_t; 1049 typedef struct hammer2_xop_scanlhc hammer2_xop_scanlhc_t; 1050 typedef struct hammer2_xop_scanall hammer2_xop_scanall_t; 1051 typedef struct hammer2_xop_lookup hammer2_xop_lookup_t; 1052 typedef struct hammer2_xop_connect hammer2_xop_connect_t; 1053 typedef struct hammer2_xop_flush hammer2_xop_flush_t; 1054 1055 union hammer2_xop { 1056 hammer2_xop_head_t head; 1057 hammer2_xop_ipcluster_t xop_ipcluster; 1058 hammer2_xop_readdir_t xop_readdir; 1059 hammer2_xop_nresolve_t xop_nresolve; 1060 hammer2_xop_unlink_t xop_unlink; 1061 hammer2_xop_nrename_t xop_nrename; 1062 hammer2_xop_strategy_t xop_strategy; 1063 hammer2_xop_mkdirent_t xop_mkdirent; 1064 hammer2_xop_create_t xop_create; 1065 hammer2_xop_destroy_t xop_destroy; 1066 hammer2_xop_fsync_t xop_fsync; 1067 hammer2_xop_unlinkall_t xop_unlinkall; 1068 hammer2_xop_scanlhc_t xop_scanlhc; 1069 hammer2_xop_scanall_t xop_scanall; 1070 hammer2_xop_lookup_t xop_lookup; 1071 hammer2_xop_flush_t xop_flush; 1072 hammer2_xop_connect_t xop_connect; 1073 }; 1074 1075 typedef union hammer2_xop hammer2_xop_t; 1076 1077 /* 1078 * hammer2_xop_group - Manage XOP support threads. 1079 */ 1080 struct hammer2_xop_group { 1081 hammer2_thread_t thrs[HAMMER2_MAXCLUSTER]; 1082 }; 1083 1084 typedef struct hammer2_xop_group hammer2_xop_group_t; 1085 1086 /* 1087 * flags to hammer2_xop_collect() 1088 */ 1089 #define HAMMER2_XOP_COLLECT_NOWAIT 0x00000001 1090 #define HAMMER2_XOP_COLLECT_WAITALL 0x00000002 1091 1092 /* 1093 * flags to hammer2_xop_alloc() 1094 * 1095 * MODIFYING - This is a modifying transaction, allocate a mtid. 1096 */ 1097 #define HAMMER2_XOP_MODIFYING 0x00000001 1098 #define HAMMER2_XOP_STRATEGY 0x00000002 1099 #define HAMMER2_XOP_INODE_STOP 0x00000004 1100 #define HAMMER2_XOP_VOLHDR 0x00000008 1101 #define HAMMER2_XOP_FSSYNC 0x00000010 1102 1103 /* 1104 * Device vnode management structure 1105 */ 1106 struct hammer2_devvp { 1107 TAILQ_ENTRY(hammer2_devvp) entry; 1108 struct m_vnode *devvp; /* device vnode */ 1109 char *path; /* device vnode path */ 1110 int open; /* 1 if devvp open */ 1111 }; 1112 1113 typedef struct hammer2_devvp hammer2_devvp_t; 1114 1115 TAILQ_HEAD(hammer2_devvp_list, hammer2_devvp); 1116 1117 typedef struct hammer2_devvp_list hammer2_devvp_list_t; 1118 1119 /* 1120 * Volume management structure 1121 */ 1122 struct hammer2_vfsvolume { 1123 hammer2_devvp_t *dev; /* device vnode management */ 1124 int id; /* volume id */ 1125 hammer2_off_t offset; /* offset within volumes */ 1126 hammer2_off_t size; /* volume size */ 1127 }; 1128 1129 typedef struct hammer2_vfsvolume hammer2_vfsvolume_t; 1130 1131 /* 1132 * Global (per partition) management structure, represents a hard block 1133 * device. Typically referenced by hammer2_chain structures when applicable. 1134 * Typically not used for network-managed elements. 1135 * 1136 * Note that a single hammer2_dev can be indirectly tied to multiple system 1137 * mount points. There is no direct relationship. System mounts are 1138 * per-cluster-id, not per-block-device, and a single hard mount might contain 1139 * many PFSs and those PFSs might combine together in various ways to form 1140 * the set of available clusters. 1141 */ 1142 struct hammer2_dev { 1143 struct m_vnode *devvp; /* device vnode for root volume */ 1144 int ronly; /* read-only mount */ 1145 int mount_count; /* number of actively mounted PFSs */ 1146 TAILQ_ENTRY(hammer2_dev) mntentry; /* hammer2_mntlist */ 1147 1148 struct malloc_type *mchain_obj; 1149 struct malloc_type *mio_obj; 1150 struct malloc_type *mmsg; 1151 //kdmsg_iocom_t iocom; /* volume-level dmsg interface */ 1152 hammer2_spin_t io_spin; /* iotree, iolruq access */ 1153 struct hammer2_io_tree iotree; 1154 int iofree_count; 1155 int freemap_relaxed; 1156 hammer2_chain_t vchain; /* anchor chain (topology) */ 1157 hammer2_chain_t fchain; /* anchor chain (freemap) */ 1158 hammer2_spin_t list_spin; 1159 struct hammer2_pfs *spmp; /* super-root pmp for transactions */ 1160 struct lock vollk; /* lockmgr lock */ 1161 struct lock bulklk; /* bulkfree operation lock */ 1162 struct lock bflock; /* bulk-free manual function lock */ 1163 hammer2_off_t heur_freemap[HAMMER2_FREEMAP_HEUR_SIZE]; 1164 hammer2_dedup_t heur_dedup[HAMMER2_DEDUP_HEUR_SIZE]; 1165 int volhdrno; /* last volhdrno written */ 1166 uint32_t hflags; /* HMNT2 flags applicable to device */ 1167 hammer2_off_t free_reserved; /* nominal free reserved */ 1168 hammer2_off_t total_size; /* total size of volumes */ 1169 int nvolumes; /* total number of volumes */ 1170 hammer2_thread_t bfthr; /* bulk-free thread */ 1171 char devrepname[64]; /* for kprintf */ 1172 hammer2_volume_data_t voldata; 1173 hammer2_volume_data_t volsync; /* synchronized voldata */ 1174 1175 hammer2_devvp_list_t devvpl; /* list of device vnodes including *devvp */ 1176 hammer2_vfsvolume_t volumes[HAMMER2_MAX_VOLUMES]; /* list of volumes */ 1177 }; 1178 1179 typedef struct hammer2_dev hammer2_dev_t; 1180 1181 /* 1182 * Per-cluster management structure. This structure will be tied to a 1183 * system mount point if the system is mounting the PFS, but is also used 1184 * to manage clusters encountered during the super-root scan or received 1185 * via LNK_SPANs that might not be mounted. 1186 * 1187 * This structure is also used to represent the super-root that hangs off 1188 * of a hard mount point. The super-root is not really a cluster element. 1189 * In this case the spmp_hmp field will be non-NULL. It's just easier to do 1190 * this than to special case super-root manipulation in the hammer2_chain* 1191 * code as being only hammer2_dev-related. 1192 * 1193 * pfs_mode and pfs_nmasters are rollup fields which critically describes 1194 * how elements of the cluster act on the cluster. pfs_mode is only applicable 1195 * when a PFS is mounted by the system. pfs_nmasters is our best guess as to 1196 * how many masters have been configured for a cluster and is always 1197 * applicable. pfs_types[] is an array with 1:1 correspondance to the 1198 * iroot cluster and describes the PFS types of the nodes making up the 1199 * cluster. 1200 * 1201 * WARNING! Portions of this structure have deferred initialization. In 1202 * particular, if not mounted there will be no wthread. 1203 * umounted network PFSs will also be missing iroot and numerous 1204 * other fields will not be initialized prior to mount. 1205 * 1206 * Synchronization threads are chain-specific and only applicable 1207 * to local hard PFS entries. A hammer2_pfs structure may contain 1208 * more than one when multiple hard PFSs are present on the local 1209 * machine which require synchronization monitoring. Most PFSs 1210 * (such as snapshots) are 1xMASTER PFSs which do not need a 1211 * synchronization thread. 1212 * 1213 * WARNING! The chains making up pfs->iroot's cluster are accounted for in 1214 * hammer2_dev->mount_count when the pfs is associated with a mount 1215 * point. 1216 */ 1217 struct hammer2_pfs { 1218 struct mount *mp; 1219 TAILQ_ENTRY(hammer2_pfs) mntentry; /* hammer2_pfslist */ 1220 uuid_t pfs_clid; 1221 hammer2_dev_t *spmp_hmp; /* only if super-root pmp */ 1222 hammer2_dev_t *force_local; /* only if 'local' mount */ 1223 hammer2_inode_t *iroot; /* PFS root inode */ 1224 uint8_t pfs_types[HAMMER2_MAXCLUSTER]; 1225 char *pfs_names[HAMMER2_MAXCLUSTER]; 1226 hammer2_dev_t *pfs_hmps[HAMMER2_MAXCLUSTER]; 1227 hammer2_blockset_t pfs_iroot_blocksets[HAMMER2_MAXCLUSTER]; 1228 hammer2_trans_t trans; 1229 struct lock lock; /* PFS lock for certain ops */ 1230 //struct netexport export; /* nfs export */ 1231 int unused00; 1232 int ronly; /* read-only mount */ 1233 int hflags; /* pfs-specific mount flags */ 1234 struct malloc_type *minode_obj; 1235 hammer2_spin_t inum_spin; /* inumber lookup */ 1236 struct hammer2_inode_tree inum_tree; /* (not applicable to spmp) */ 1237 long inum_count; /* #of inodes in inum_tree */ 1238 hammer2_spin_t lru_spin; 1239 struct hammer2_chain_list lru_list; /* basis for LRU tests */ 1240 int lru_count; /* #of chains on LRU */ 1241 int flags; 1242 hammer2_tid_t modify_tid; /* modify transaction id */ 1243 hammer2_tid_t inode_tid; /* inode allocator */ 1244 uint8_t pfs_nmasters; /* total masters */ 1245 uint8_t pfs_mode; /* operating mode PFSMODE */ 1246 uint8_t unused01; 1247 uint8_t unused02; 1248 int free_ticks; /* free_* calculations */ 1249 long inmem_inodes; 1250 hammer2_off_t free_reserved; 1251 hammer2_off_t free_nominal; 1252 uint32_t inmem_dirty_chains; 1253 int count_lwinprog; /* logical write in prog */ 1254 hammer2_spin_t list_spin; 1255 struct inoq_head syncq; /* SYNCQ flagged inodes */ 1256 struct depq_head depq; /* SIDEQ flagged inodes */ 1257 long sideq_count; /* total inodes on depq */ 1258 hammer2_thread_t sync_thrs[HAMMER2_MAXCLUSTER]; 1259 uint32_t cluster_flags; /* cached cluster flags */ 1260 int has_xop_threads; 1261 hammer2_spin_t xop_spin; /* xop sequencer */ 1262 hammer2_xop_group_t *xop_groups; 1263 }; 1264 1265 typedef struct hammer2_pfs hammer2_pfs_t; 1266 1267 TAILQ_HEAD(hammer2_pfslist, hammer2_pfs); 1268 1269 /* 1270 * pmp->flags 1271 */ 1272 #define HAMMER2_PMPF_SPMP 0x00000001 1273 #define HAMMER2_PMPF_EMERG 0x00000002 /* Emergency delete mode */ 1274 1275 /* 1276 * NOTE: The LRU list contains at least all the chains with refs == 0 1277 * that can be recycled, and may contain additional chains which 1278 * cannot. 1279 */ 1280 #define HAMMER2_LRU_LIMIT 4096 1281 1282 #define HAMMER2_DIRTYCHAIN_WAITING 0x80000000 1283 #define HAMMER2_DIRTYCHAIN_MASK 0x7FFFFFFF 1284 1285 #define HAMMER2_LWINPROG_WAITING 0x80000000 1286 #define HAMMER2_LWINPROG_WAITING0 0x40000000 1287 #define HAMMER2_LWINPROG_MASK 0x3FFFFFFF 1288 1289 /* 1290 * hammer2_cluster_check 1291 */ 1292 #define HAMMER2_CHECK_NULL 0x00000001 1293 1294 /* 1295 * Misc 1296 */ 1297 //#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) 1298 #define VTOI(vp) ((hammer2_inode_t *)(vp)->v_data) 1299 //#endif 1300 1301 //#if defined(_KERNEL) 1302 1303 #ifdef MALLOC_DECLARE 1304 MALLOC_DECLARE(M_HAMMER2); 1305 #endif 1306 1307 static __inline 1308 hammer2_pfs_t * 1309 MPTOPMP(struct mount *mp) 1310 { 1311 return ((hammer2_pfs_t *)mp->mnt_data); 1312 } 1313 1314 #define HAMMER2_DEDUP_FRAG (HAMMER2_PBUFSIZE / 64) 1315 #define HAMMER2_DEDUP_FRAGRADIX (HAMMER2_PBUFRADIX - 6) 1316 1317 static __inline 1318 uint64_t 1319 hammer2_dedup_mask(hammer2_io_t *dio, hammer2_off_t data_off, u_int bytes) 1320 { 1321 int bbeg; 1322 int bits; 1323 uint64_t mask; 1324 1325 bbeg = (int)((data_off & ~HAMMER2_OFF_MASK_RADIX) - dio->pbase) >> 1326 HAMMER2_DEDUP_FRAGRADIX; 1327 bits = (int)((bytes + (HAMMER2_DEDUP_FRAG - 1)) >> 1328 HAMMER2_DEDUP_FRAGRADIX); 1329 if (bbeg + bits == 64) 1330 mask = (uint64_t)-1; 1331 else 1332 mask = ((uint64_t)1 << (bbeg + bits)) - 1; 1333 1334 mask &= ~(((uint64_t)1 << bbeg) - 1); 1335 1336 return mask; 1337 } 1338 1339 static __inline 1340 int 1341 hammer2_error_to_errno(int error) 1342 { 1343 if (error) { 1344 if (error & HAMMER2_ERROR_EIO) 1345 error = EIO; 1346 else if (error & HAMMER2_ERROR_CHECK) 1347 error = EDOM; 1348 else if (error & HAMMER2_ERROR_ABORTED) 1349 error = EINTR; 1350 else if (error & HAMMER2_ERROR_BADBREF) 1351 error = EIO; 1352 else if (error & HAMMER2_ERROR_ENOSPC) 1353 error = ENOSPC; 1354 else if (error & HAMMER2_ERROR_ENOENT) 1355 error = ENOENT; 1356 else if (error & HAMMER2_ERROR_ENOTEMPTY) 1357 error = ENOTEMPTY; 1358 else if (error & HAMMER2_ERROR_EAGAIN) 1359 error = EAGAIN; 1360 else if (error & HAMMER2_ERROR_ENOTDIR) 1361 error = ENOTDIR; 1362 else if (error & HAMMER2_ERROR_EISDIR) 1363 error = EISDIR; 1364 else if (error & HAMMER2_ERROR_EINPROGRESS) 1365 error = EINPROGRESS; 1366 else if (error & HAMMER2_ERROR_EEXIST) 1367 error = EEXIST; 1368 else if (error & HAMMER2_ERROR_EINVAL) 1369 error = EINVAL; 1370 else if (error & HAMMER2_ERROR_EDEADLK) 1371 error = EDEADLK; 1372 else if (error & HAMMER2_ERROR_ESRCH) 1373 error = ESRCH; 1374 else if (error & HAMMER2_ERROR_ETIMEDOUT) 1375 error = ETIMEDOUT; 1376 else 1377 error = EDOM; 1378 } 1379 return error; 1380 } 1381 1382 static __inline 1383 int 1384 hammer2_errno_to_error(int error) 1385 { 1386 switch(error) { 1387 case 0: 1388 return 0; 1389 case EIO: 1390 return HAMMER2_ERROR_EIO; 1391 case EDOM: 1392 return HAMMER2_ERROR_CHECK; 1393 case EINTR: 1394 return HAMMER2_ERROR_ABORTED; 1395 //case EIO: 1396 // return HAMMER2_ERROR_BADBREF; 1397 case ENOSPC: 1398 return HAMMER2_ERROR_ENOSPC; 1399 case ENOENT: 1400 return HAMMER2_ERROR_ENOENT; 1401 case ENOTEMPTY: 1402 return HAMMER2_ERROR_ENOTEMPTY; 1403 case EAGAIN: 1404 return HAMMER2_ERROR_EAGAIN; 1405 case ENOTDIR: 1406 return HAMMER2_ERROR_ENOTDIR; 1407 case EISDIR: 1408 return HAMMER2_ERROR_EISDIR; 1409 case EINPROGRESS: 1410 return HAMMER2_ERROR_EINPROGRESS; 1411 case EEXIST: 1412 return HAMMER2_ERROR_EEXIST; 1413 case EINVAL: 1414 return HAMMER2_ERROR_EINVAL; 1415 case EDEADLK: 1416 return HAMMER2_ERROR_EDEADLK; 1417 case ESRCH: 1418 return HAMMER2_ERROR_ESRCH; 1419 case ETIMEDOUT: 1420 return HAMMER2_ERROR_ETIMEDOUT; 1421 default: 1422 return HAMMER2_ERROR_EINVAL; 1423 } 1424 } 1425 1426 1427 extern struct vop_ops hammer2_vnode_vops; 1428 extern struct vop_ops hammer2_spec_vops; 1429 extern struct vop_ops hammer2_fifo_vops; 1430 extern struct hammer2_pfslist hammer2_pfslist; 1431 extern struct lock hammer2_mntlk; 1432 1433 extern int hammer2_aux_flags; 1434 extern int hammer2_debug; 1435 extern int hammer2_xop_nthreads; 1436 extern int hammer2_xop_sgroups; 1437 extern int hammer2_xop_xgroups; 1438 extern int hammer2_xop_xbase; 1439 extern int hammer2_xop_mod; 1440 extern long hammer2_debug_inode; 1441 extern int hammer2_cluster_meta_read; 1442 extern int hammer2_cluster_data_read; 1443 extern int hammer2_cluster_write; 1444 extern int hammer2_dedup_enable; 1445 extern int hammer2_always_compress; 1446 extern int hammer2_flush_pipe; 1447 extern int hammer2_dio_count; 1448 extern int hammer2_dio_limit; 1449 extern int hammer2_bulkfree_tps; 1450 extern int hammer2_spread_workers; 1451 extern int hammer2_limit_saved_depth; 1452 extern long hammer2_chain_allocs; 1453 extern long hammer2_limit_saved_chains; 1454 extern long hammer2_limit_dirty_chains; 1455 extern long hammer2_limit_dirty_inodes; 1456 extern long hammer2_count_modified_chains; 1457 extern long hammer2_iod_file_read; 1458 extern long hammer2_iod_meta_read; 1459 extern long hammer2_iod_indr_read; 1460 extern long hammer2_iod_fmap_read; 1461 extern long hammer2_iod_volu_read; 1462 extern long hammer2_iod_file_write; 1463 extern long hammer2_iod_file_wembed; 1464 extern long hammer2_iod_file_wzero; 1465 extern long hammer2_iod_file_wdedup; 1466 extern long hammer2_iod_meta_write; 1467 extern long hammer2_iod_indr_write; 1468 extern long hammer2_iod_fmap_write; 1469 extern long hammer2_iod_volu_write; 1470 1471 extern long hammer2_process_icrc32; 1472 extern long hammer2_process_xxhash64; 1473 1474 extern struct objcache *cache_buffer_read; 1475 extern struct objcache *cache_buffer_write; 1476 extern struct objcache *cache_xops; 1477 1478 /* 1479 * hammer2_subr.c 1480 */ 1481 #define hammer2_icrc32(buf, size) iscsi_crc32((buf), (size)) 1482 #define hammer2_icrc32c(buf, size, crc) iscsi_crc32_ext((buf), (size), (crc)) 1483 1484 int hammer2_signal_check(time_t *timep); 1485 const char *hammer2_error_str(int error); 1486 const char *hammer2_bref_type_str(int btype); 1487 1488 int hammer2_get_dtype(uint8_t type); 1489 int hammer2_get_vtype(uint8_t type); 1490 uint8_t hammer2_get_obj_type(enum vtype vtype); 1491 void hammer2_time_to_timespec(uint64_t xtime, struct timespec *ts); 1492 uint64_t hammer2_timespec_to_time(const struct timespec *ts); 1493 uint32_t hammer2_to_unix_xid(const uuid_t *uuid); 1494 void hammer2_guid_to_uuid(uuid_t *uuid, uint32_t guid); 1495 1496 hammer2_key_t hammer2_dirhash(const char *aname, size_t len); 1497 int hammer2_getradix(size_t bytes); 1498 1499 int hammer2_calc_logical(hammer2_inode_t *ip, hammer2_off_t uoff, 1500 hammer2_key_t *lbasep, hammer2_key_t *leofp); 1501 int hammer2_calc_physical(hammer2_inode_t *ip, hammer2_key_t lbase); 1502 void hammer2_update_time(uint64_t *timep, bool is_mtime); 1503 void hammer2_adjreadcounter(int btype, size_t bytes); 1504 void hammer2_adjwritecounter(int btype, size_t bytes); 1505 1506 /* 1507 * hammer2_inode.c 1508 */ 1509 struct m_vnode *hammer2_igetv(hammer2_inode_t *ip, int *errorp); 1510 hammer2_inode_t *hammer2_inode_lookup(hammer2_pfs_t *pmp, 1511 hammer2_tid_t inum); 1512 hammer2_inode_t *hammer2_inode_get(hammer2_pfs_t *pmp, 1513 hammer2_xop_head_t *xop, hammer2_tid_t inum, int idx); 1514 void hammer2_inode_ref(hammer2_inode_t *ip); 1515 void hammer2_inode_drop(hammer2_inode_t *ip); 1516 void hammer2_inode_repoint(hammer2_inode_t *ip, hammer2_cluster_t *cluster); 1517 void hammer2_inode_repoint_one(hammer2_inode_t *ip, hammer2_cluster_t *cluster, 1518 int idx); 1519 hammer2_key_t hammer2_inode_data_count(const hammer2_inode_t *ip); 1520 hammer2_key_t hammer2_inode_inode_count(const hammer2_inode_t *ip); 1521 void hammer2_inode_modify(hammer2_inode_t *ip); 1522 void hammer2_inode_delayed_sideq(hammer2_inode_t *ip); 1523 void hammer2_inode_lock(hammer2_inode_t *ip, int how); 1524 void hammer2_inode_lock4(hammer2_inode_t *ip1, hammer2_inode_t *ip2, 1525 hammer2_inode_t *ip3, hammer2_inode_t *ip4); 1526 void hammer2_inode_unlock(hammer2_inode_t *ip); 1527 void hammer2_inode_depend(hammer2_inode_t *ip1, hammer2_inode_t *ip2); 1528 hammer2_chain_t *hammer2_inode_chain(hammer2_inode_t *ip, int clindex, int how); 1529 hammer2_chain_t *hammer2_inode_chain_and_parent(hammer2_inode_t *ip, 1530 int clindex, hammer2_chain_t **parentp, int how); 1531 hammer2_mtx_state_t hammer2_inode_lock_temp_release(hammer2_inode_t *ip); 1532 void hammer2_inode_lock_temp_restore(hammer2_inode_t *ip, 1533 hammer2_mtx_state_t ostate); 1534 int hammer2_inode_lock_upgrade(hammer2_inode_t *ip); 1535 void hammer2_inode_lock_downgrade(hammer2_inode_t *ip, int); 1536 1537 hammer2_inode_t *hammer2_inode_create_normal(hammer2_inode_t *pip, 1538 struct vattr *vap, struct ucred *cred, 1539 hammer2_key_t inum, int *errorp); 1540 hammer2_inode_t *hammer2_inode_create_pfs(hammer2_pfs_t *spmp, 1541 const char *name, size_t name_len, 1542 int *errorp); 1543 int hammer2_inode_chain_ins(hammer2_inode_t *ip); 1544 int hammer2_inode_chain_des(hammer2_inode_t *ip); 1545 int hammer2_inode_chain_sync(hammer2_inode_t *ip); 1546 int hammer2_inode_chain_flush(hammer2_inode_t *ip, int flags); 1547 int hammer2_inode_unlink_finisher(hammer2_inode_t *ip, struct m_vnode **vpp); 1548 void hammer2_inode_vprecycle(struct m_vnode *vp); 1549 int hammer2_dirent_create(hammer2_inode_t *dip, const char *name, 1550 size_t name_len, hammer2_key_t inum, uint8_t type); 1551 1552 hammer2_key_t hammer2_pfs_inode_count(hammer2_pfs_t *pmp); 1553 int vflush(struct mount *mp, int rootrefs, int flags); 1554 1555 /* 1556 * hammer2_chain.c 1557 */ 1558 hammer2_chain_t *hammer2_chain_alloc(hammer2_dev_t *hmp, 1559 hammer2_pfs_t *pmp, 1560 hammer2_blockref_t *bref); 1561 void hammer2_chain_init(hammer2_chain_t *chain); 1562 void hammer2_chain_ref(hammer2_chain_t *chain); 1563 void hammer2_chain_ref_hold(hammer2_chain_t *chain); 1564 void hammer2_chain_drop(hammer2_chain_t *chain); 1565 void hammer2_chain_drop_unhold(hammer2_chain_t *chain); 1566 void hammer2_chain_unhold(hammer2_chain_t *chain); 1567 void hammer2_chain_rehold(hammer2_chain_t *chain); 1568 int hammer2_chain_lock(hammer2_chain_t *chain, int how); 1569 //void hammer2_chain_lock_unhold(hammer2_chain_t *chain, int how); 1570 void hammer2_chain_load_data(hammer2_chain_t *chain); 1571 1572 int hammer2_chain_inode_find(hammer2_pfs_t *pmp, hammer2_key_t inum, 1573 int clindex, int flags, 1574 hammer2_chain_t **parentp, 1575 hammer2_chain_t **chainp); 1576 int hammer2_chain_modify(hammer2_chain_t *chain, hammer2_tid_t mtid, 1577 hammer2_off_t dedup_off, int flags); 1578 int hammer2_chain_modify_ip(hammer2_inode_t *ip, hammer2_chain_t *chain, 1579 hammer2_tid_t mtid, int flags); 1580 int hammer2_chain_resize(hammer2_chain_t *chain, 1581 hammer2_tid_t mtid, hammer2_off_t dedup_off, 1582 int nradix, int flags); 1583 void hammer2_chain_unlock(hammer2_chain_t *chain); 1584 //void hammer2_chain_unlock_hold(hammer2_chain_t *chain); 1585 hammer2_chain_t *hammer2_chain_get(hammer2_chain_t *parent, int generation, 1586 hammer2_blockref_t *bref, int how); 1587 hammer2_chain_t *hammer2_chain_lookup_init(hammer2_chain_t *parent, int flags); 1588 void hammer2_chain_lookup_done(hammer2_chain_t *parent); 1589 hammer2_chain_t *hammer2_chain_getparent(hammer2_chain_t *chain, int flags); 1590 hammer2_chain_t *hammer2_chain_repparent(hammer2_chain_t **chainp, int flags); 1591 hammer2_chain_t *hammer2_chain_lookup(hammer2_chain_t **parentp, 1592 hammer2_key_t *key_nextp, 1593 hammer2_key_t key_beg, hammer2_key_t key_end, 1594 int *errorp, int flags); 1595 hammer2_chain_t *hammer2_chain_next(hammer2_chain_t **parentp, 1596 hammer2_chain_t *chain, 1597 hammer2_key_t *key_nextp, 1598 hammer2_key_t key_beg, hammer2_key_t key_end, 1599 int *errorp, int flags); 1600 int hammer2_chain_scan(hammer2_chain_t *parent, 1601 hammer2_chain_t **chainp, 1602 hammer2_blockref_t *bref, 1603 int *firstp, int flags); 1604 1605 int hammer2_chain_create(hammer2_chain_t **parentp, hammer2_chain_t **chainp, 1606 hammer2_dev_t *hmp, hammer2_pfs_t *pmp, 1607 int methods, hammer2_key_t key, int keybits, 1608 int type, size_t bytes, hammer2_tid_t mtid, 1609 hammer2_off_t dedup_off, int flags); 1610 void hammer2_chain_rename(hammer2_chain_t **parentp, 1611 hammer2_chain_t *chain, 1612 hammer2_tid_t mtid, int flags); 1613 int hammer2_chain_delete(hammer2_chain_t *parent, hammer2_chain_t *chain, 1614 hammer2_tid_t mtid, int flags); 1615 int hammer2_chain_indirect_maintenance(hammer2_chain_t *parent, 1616 hammer2_chain_t *chain); 1617 void hammer2_chain_setflush(hammer2_chain_t *chain); 1618 void hammer2_chain_countbrefs(hammer2_chain_t *chain, 1619 hammer2_blockref_t *base, int count); 1620 hammer2_chain_t *hammer2_chain_bulksnap(hammer2_dev_t *hmp); 1621 void hammer2_chain_bulkdrop(hammer2_chain_t *copy); 1622 1623 void hammer2_chain_setcheck(hammer2_chain_t *chain, void *bdata); 1624 int hammer2_chain_testcheck(hammer2_chain_t *chain, void *bdata); 1625 int hammer2_chain_dirent_test(hammer2_chain_t *chain, const char *name, 1626 size_t name_len); 1627 1628 void hammer2_base_delete(hammer2_chain_t *parent, 1629 hammer2_blockref_t *base, int count, 1630 hammer2_chain_t *chain, 1631 hammer2_blockref_t *obref); 1632 void hammer2_base_insert(hammer2_chain_t *parent, 1633 hammer2_blockref_t *base, int count, 1634 hammer2_chain_t *chain, 1635 hammer2_blockref_t *elm); 1636 void hammer2_dump_chain(hammer2_chain_t *chain, int tab, int bi, int *countp, 1637 char pfx, u_int flags); 1638 void hammer2_dump_chains(hammer2_dev_t *hmp, char vpfx, char fpfx); 1639 1640 /* 1641 * hammer2_flush.c 1642 */ 1643 void hammer2_trans_manage_init(hammer2_pfs_t *pmp); 1644 int hammer2_flush(hammer2_chain_t *chain, int istop); 1645 void hammer2_trans_init(hammer2_pfs_t *pmp, uint32_t flags); 1646 void hammer2_trans_setflags(hammer2_pfs_t *pmp, uint32_t flags); 1647 void hammer2_trans_clearflags(hammer2_pfs_t *pmp, uint32_t flags); 1648 hammer2_tid_t hammer2_trans_sub(hammer2_pfs_t *pmp); 1649 void hammer2_trans_done(hammer2_pfs_t *pmp, uint32_t flags); 1650 hammer2_tid_t hammer2_trans_newinum(hammer2_pfs_t *pmp); 1651 void hammer2_trans_assert_strategy(hammer2_pfs_t *pmp); 1652 1653 /* 1654 * hammer2_ioctl.c 1655 */ 1656 int hammer2_ioctl(hammer2_inode_t *ip, u_long com, void *data, 1657 int fflag, struct ucred *cred); 1658 int hammer2_ioctl_bulkfree_scan(hammer2_inode_t *ip, void *data); 1659 int hammer2_ioctl_destroy(hammer2_inode_t *ip, void *data); 1660 int hammer2_ioctl_growfs(hammer2_inode_t *ip, void *data, struct ucred *cred); 1661 1662 /* 1663 * hammer2_io.c 1664 */ 1665 void hammer2_io_inval(hammer2_io_t *dio, hammer2_off_t data_off, u_int bytes); 1666 void hammer2_io_cleanup(hammer2_dev_t *hmp, struct hammer2_io_tree *tree); 1667 char *hammer2_io_data(hammer2_io_t *dio, off_t lbase); 1668 void hammer2_io_bkvasync(hammer2_io_t *dio); 1669 void hammer2_io_dedup_set(hammer2_dev_t *hmp, hammer2_blockref_t *bref); 1670 void hammer2_io_dedup_delete(hammer2_dev_t *hmp, uint8_t btype, 1671 hammer2_off_t data_off, u_int bytes); 1672 void hammer2_io_dedup_assert(hammer2_dev_t *hmp, hammer2_off_t data_off, 1673 u_int bytes); 1674 int hammer2_io_new(hammer2_dev_t *hmp, int btype, off_t lbase, int lsize, 1675 hammer2_io_t **diop); 1676 int hammer2_io_newnz(hammer2_dev_t *hmp, int btype, off_t lbase, int lsize, 1677 hammer2_io_t **diop); 1678 int _hammer2_io_bread(hammer2_dev_t *hmp, int btype, off_t lbase, int lsize, 1679 hammer2_io_t **diop HAMMER2_IO_DEBUG_ARGS); 1680 void hammer2_io_setdirty(hammer2_io_t *dio); 1681 1682 hammer2_io_t *_hammer2_io_getblk(hammer2_dev_t *hmp, int btype, off_t lbase, 1683 int lsize, int op HAMMER2_IO_DEBUG_ARGS); 1684 hammer2_io_t *_hammer2_io_getquick(hammer2_dev_t *hmp, off_t lbase, 1685 int lsize HAMMER2_IO_DEBUG_ARGS); 1686 void _hammer2_io_putblk(hammer2_io_t **diop HAMMER2_IO_DEBUG_ARGS); 1687 int _hammer2_io_bwrite(hammer2_io_t **diop HAMMER2_IO_DEBUG_ARGS); 1688 void _hammer2_io_bawrite(hammer2_io_t **diop HAMMER2_IO_DEBUG_ARGS); 1689 void _hammer2_io_bdwrite(hammer2_io_t **diop HAMMER2_IO_DEBUG_ARGS); 1690 void _hammer2_io_brelse(hammer2_io_t **diop HAMMER2_IO_DEBUG_ARGS); 1691 void _hammer2_io_bqrelse(hammer2_io_t **diop HAMMER2_IO_DEBUG_ARGS); 1692 void _hammer2_io_ref(hammer2_io_t *dio HAMMER2_IO_DEBUG_ARGS); 1693 1694 #ifndef HAMMER2_IO_DEBUG 1695 1696 #define hammer2_io_getblk(hmp, btype, lbase, lsize, op) \ 1697 _hammer2_io_getblk((hmp), (btype), (lbase), (lsize), (op)) 1698 #define hammer2_io_getquick(hmp, lbase, lsize) \ 1699 _hammer2_io_getquick((hmp), (lbase), (lsize)) 1700 #define hammer2_io_putblk(diop) \ 1701 _hammer2_io_putblk(diop) 1702 #define hammer2_io_bwrite(diop) \ 1703 _hammer2_io_bwrite((diop)) 1704 #define hammer2_io_bawrite(diop) \ 1705 _hammer2_io_bawrite((diop)) 1706 #define hammer2_io_bdwrite(diop) \ 1707 _hammer2_io_bdwrite((diop)) 1708 #define hammer2_io_brelse(diop) \ 1709 _hammer2_io_brelse((diop)) 1710 #define hammer2_io_bqrelse(diop) \ 1711 _hammer2_io_bqrelse((diop)) 1712 #define hammer2_io_ref(dio) \ 1713 _hammer2_io_ref((dio)) 1714 1715 #define hammer2_io_bread(hmp, btype, lbase, lsize, diop) \ 1716 _hammer2_io_bread((hmp), (btype), (lbase), (lsize), (diop)) 1717 1718 #else 1719 1720 #define hammer2_io_getblk(hmp, btype, lbase, lsize, op) \ 1721 _hammer2_io_getblk((hmp), (btype), (lbase), (lsize), (op), \ 1722 __FILE__, __LINE__) 1723 1724 #define hammer2_io_getquick(hmp, lbase, lsize) \ 1725 _hammer2_io_getquick((hmp), (lbase), (lsize), __FILE__, __LINE__) 1726 1727 #define hammer2_io_putblk(diop) \ 1728 _hammer2_io_putblk(diop, __FILE__, __LINE__) 1729 1730 #define hammer2_io_bwrite(diop) \ 1731 _hammer2_io_bwrite((diop), __FILE__, __LINE__) 1732 #define hammer2_io_bawrite(diop) \ 1733 _hammer2_io_bawrite((diop), __FILE__, __LINE__) 1734 #define hammer2_io_bdwrite(diop) \ 1735 _hammer2_io_bdwrite((diop), __FILE__, __LINE__) 1736 #define hammer2_io_brelse(diop) \ 1737 _hammer2_io_brelse((diop), __FILE__, __LINE__) 1738 #define hammer2_io_bqrelse(diop) \ 1739 _hammer2_io_bqrelse((diop), __FILE__, __LINE__) 1740 #define hammer2_io_ref(dio) \ 1741 _hammer2_io_ref((dio), __FILE__, __LINE__) 1742 1743 #define hammer2_io_bread(hmp, btype, lbase, lsize, diop) \ 1744 _hammer2_io_bread((hmp), (btype), (lbase), (lsize), (diop), \ 1745 __FILE__, __LINE__) 1746 1747 #endif 1748 1749 /* 1750 * hammer2_admin.c 1751 */ 1752 void hammer2_thr_signal(hammer2_thread_t *thr, uint32_t flags); 1753 void hammer2_thr_signal2(hammer2_thread_t *thr, 1754 uint32_t pflags, uint32_t nflags); 1755 void hammer2_thr_wait(hammer2_thread_t *thr, uint32_t flags); 1756 void hammer2_thr_wait_neg(hammer2_thread_t *thr, uint32_t flags); 1757 int hammer2_thr_wait_any(hammer2_thread_t *thr, uint32_t flags, int timo); 1758 void hammer2_thr_create(hammer2_thread_t *thr, 1759 hammer2_pfs_t *pmp, hammer2_dev_t *hmp, 1760 const char *id, int clindex, int repidx, 1761 void (*func)(void *arg)); 1762 void hammer2_thr_delete(hammer2_thread_t *thr); 1763 void hammer2_thr_remaster(hammer2_thread_t *thr); 1764 void hammer2_thr_freeze_async(hammer2_thread_t *thr); 1765 void hammer2_thr_freeze(hammer2_thread_t *thr); 1766 void hammer2_thr_unfreeze(hammer2_thread_t *thr); 1767 int hammer2_thr_break(hammer2_thread_t *thr); 1768 void hammer2_primary_xops_thread(void *arg); 1769 1770 /* 1771 * hammer2_thread.c (XOP API) 1772 */ 1773 void *hammer2_xop_alloc(hammer2_inode_t *ip, int flags); 1774 void hammer2_xop_setname(hammer2_xop_head_t *xop, 1775 const char *name, size_t name_len); 1776 void hammer2_xop_setname2(hammer2_xop_head_t *xop, 1777 const char *name, size_t name_len); 1778 size_t hammer2_xop_setname_inum(hammer2_xop_head_t *xop, hammer2_key_t inum); 1779 void hammer2_xop_setip2(hammer2_xop_head_t *xop, hammer2_inode_t *ip2); 1780 void hammer2_xop_setip3(hammer2_xop_head_t *xop, hammer2_inode_t *ip3); 1781 void hammer2_xop_setip4(hammer2_xop_head_t *xop, hammer2_inode_t *ip4); 1782 void hammer2_xop_reinit(hammer2_xop_head_t *xop); 1783 void hammer2_xop_helper_create(hammer2_pfs_t *pmp); 1784 void hammer2_xop_helper_cleanup(hammer2_pfs_t *pmp); 1785 void hammer2_xop_start(hammer2_xop_head_t *xop, hammer2_xop_desc_t *desc); 1786 void hammer2_xop_start_except(hammer2_xop_head_t *xop, hammer2_xop_desc_t *desc, 1787 int notidx); 1788 int hammer2_xop_collect(hammer2_xop_head_t *xop, int flags); 1789 void hammer2_xop_retire(hammer2_xop_head_t *xop, uint64_t mask); 1790 int hammer2_xop_active(hammer2_xop_head_t *xop); 1791 int hammer2_xop_feed(hammer2_xop_head_t *xop, hammer2_chain_t *chain, 1792 int clindex, int error); 1793 1794 /* 1795 * hammer2_synchro.c 1796 */ 1797 void hammer2_primary_sync_thread(void *arg); 1798 1799 /* 1800 * XOP backends in hammer2_xops.c, primarily for VNOPS. Other XOP backends 1801 * may be integrated into other source files. 1802 */ 1803 void hammer2_xop_ipcluster(hammer2_xop_t *xop, void *scratch, int clindex); 1804 void hammer2_xop_readdir(hammer2_xop_t *xop, void *scratch, int clindex); 1805 void hammer2_xop_nresolve(hammer2_xop_t *xop, void *scratch, int clindex); 1806 void hammer2_xop_unlink(hammer2_xop_t *xop, void *scratch, int clindex); 1807 void hammer2_xop_nrename(hammer2_xop_t *xop, void *scratch, int clindex); 1808 void hammer2_xop_scanlhc(hammer2_xop_t *xop, void *scratch, int clindex); 1809 void hammer2_xop_scanall(hammer2_xop_t *xop, void *scratch, int clindex); 1810 void hammer2_xop_lookup(hammer2_xop_t *xop, void *scratch, int clindex); 1811 void hammer2_xop_delete(hammer2_xop_t *xop, void *scratch, int clindex); 1812 void hammer2_xop_inode_mkdirent(hammer2_xop_t *xop, void *scratch, int clindex); 1813 void hammer2_xop_inode_create(hammer2_xop_t *xop, void *scratch, int clindex); 1814 void hammer2_xop_inode_create_det(hammer2_xop_t *xop, 1815 void *scratch, int clindex); 1816 void hammer2_xop_inode_create_ins(hammer2_xop_t *xop, 1817 void *scratch, int clindex); 1818 void hammer2_xop_inode_destroy(hammer2_xop_t *xop, void *scratch, int clindex); 1819 void hammer2_xop_inode_chain_sync(hammer2_xop_t *xop, void *scratch, 1820 int clindex); 1821 void hammer2_xop_inode_unlinkall(hammer2_xop_t *xop, void *scratch, 1822 int clindex); 1823 void hammer2_xop_inode_connect(hammer2_xop_t *xop, void *scratch, int clindex); 1824 void hammer2_xop_inode_flush(hammer2_xop_t *xop, void *scratch, int clindex); 1825 void hammer2_xop_strategy_read(hammer2_xop_t *xop, void *scratch, int clindex); 1826 void hammer2_xop_strategy_write(hammer2_xop_t *xop, void *scratch, int clindex); 1827 1828 void hammer2_dmsg_ipcluster(hammer2_xop_t *xop, void *scratch, int clindex); 1829 void hammer2_dmsg_readdir(hammer2_xop_t *xop, void *scratch, int clindex); 1830 void hammer2_dmsg_nresolve(hammer2_xop_t *xop, void *scratch, int clindex); 1831 void hammer2_dmsg_unlink(hammer2_xop_t *xop, void *scratch, int clindex); 1832 void hammer2_dmsg_nrename(hammer2_xop_t *xop, void *scratch, int clindex); 1833 void hammer2_dmsg_scanlhc(hammer2_xop_t *xop, void *scratch, int clindex); 1834 void hammer2_dmsg_scanall(hammer2_xop_t *xop, void *scratch, int clindex); 1835 void hammer2_dmsg_lookup(hammer2_xop_t *xop, void *scratch, int clindex); 1836 void hammer2_dmsg_inode_mkdirent(hammer2_xop_t *xop, void *scratch, 1837 int clindex); 1838 void hammer2_dmsg_inode_create(hammer2_xop_t *xop, void *scratch, int clindex); 1839 void hammer2_dmsg_inode_destroy(hammer2_xop_t *xop, void *scratch, int clindex); 1840 void hammer2_dmsg_inode_chain_sync(hammer2_xop_t *xop, void *scratch, 1841 int clindex); 1842 void hammer2_dmsg_inode_unlinkall(hammer2_xop_t *xop, void *scratch, 1843 int clindex); 1844 void hammer2_dmsg_inode_connect(hammer2_xop_t *xop, void *scratch, int clindex); 1845 void hammer2_dmsg_inode_flush(hammer2_xop_t *xop, void *scratch, int clindex); 1846 void hammer2_dmsg_strategy_read(hammer2_xop_t *xop, void *scratch, int clindex); 1847 void hammer2_dmsg_strategy_write(hammer2_xop_t *xop, void *scratch, 1848 int clindex); 1849 1850 void hammer2_rmsg_ipcluster(hammer2_xop_t *xop, void *scratch, int clindex); 1851 void hammer2_rmsg_readdir(hammer2_xop_t *xop, void *scratch, int clindex); 1852 void hammer2_rmsg_nresolve(hammer2_xop_t *xop, void *scratch, int clindex); 1853 void hammer2_rmsg_unlink(hammer2_xop_t *xop, void *scratch, int clindex); 1854 void hammer2_rmsg_nrename(hammer2_xop_t *xop, void *scratch, int clindex); 1855 void hammer2_rmsg_scanlhc(hammer2_xop_t *xop, void *scratch, int clindex); 1856 void hammer2_rmsg_scanall(hammer2_xop_t *xop, void *scratch, int clindex); 1857 void hammer2_rmsg_lookup(hammer2_xop_t *xop, void *scratch, int clindex); 1858 void hammer2_rmsg_inode_mkdirent(hammer2_xop_t *xop, void *scratch, 1859 int clindex); 1860 void hammer2_rmsg_inode_create(hammer2_xop_t *xop, void *scratch, int clindex); 1861 void hammer2_rmsg_inode_destroy(hammer2_xop_t *xop, void *scratch, int clindex); 1862 void hammer2_rmsg_inode_chain_sync(hammer2_xop_t *xop, void *scratch, 1863 int clindex); 1864 void hammer2_rmsg_inode_unlinkall(hammer2_xop_t *xop, void *scratch, 1865 int clindex); 1866 void hammer2_rmsg_inode_connect(hammer2_xop_t *xop, void *scratch, int clindex); 1867 void hammer2_rmsg_inode_flush(hammer2_xop_t *xop, void *scratch, int clindex); 1868 void hammer2_rmsg_strategy_read(hammer2_xop_t *xop, void *scratch, int clindex); 1869 void hammer2_rmsg_strategy_write(hammer2_xop_t *xop, void *scratch, 1870 int clindex); 1871 1872 extern hammer2_xop_desc_t hammer2_ipcluster_desc; 1873 extern hammer2_xop_desc_t hammer2_readdir_desc; 1874 extern hammer2_xop_desc_t hammer2_nresolve_desc; 1875 extern hammer2_xop_desc_t hammer2_unlink_desc; 1876 extern hammer2_xop_desc_t hammer2_nrename_desc; 1877 extern hammer2_xop_desc_t hammer2_scanlhc_desc; 1878 extern hammer2_xop_desc_t hammer2_scanall_desc; 1879 extern hammer2_xop_desc_t hammer2_lookup_desc; 1880 extern hammer2_xop_desc_t hammer2_delete_desc; 1881 extern hammer2_xop_desc_t hammer2_inode_mkdirent_desc; 1882 extern hammer2_xop_desc_t hammer2_inode_create_desc; 1883 extern hammer2_xop_desc_t hammer2_inode_create_det_desc; 1884 extern hammer2_xop_desc_t hammer2_inode_create_ins_desc; 1885 extern hammer2_xop_desc_t hammer2_inode_destroy_desc; 1886 extern hammer2_xop_desc_t hammer2_inode_chain_sync_desc; 1887 extern hammer2_xop_desc_t hammer2_inode_unlinkall_desc; 1888 extern hammer2_xop_desc_t hammer2_inode_connect_desc; 1889 extern hammer2_xop_desc_t hammer2_inode_flush_desc; 1890 extern hammer2_xop_desc_t hammer2_strategy_read_desc; 1891 extern hammer2_xop_desc_t hammer2_strategy_write_desc; 1892 1893 /* 1894 * hammer2_msgops.c 1895 */ 1896 /* 1897 int hammer2_msg_dbg_rcvmsg(kdmsg_msg_t *msg); 1898 int hammer2_msg_adhoc_input(kdmsg_msg_t *msg); 1899 */ 1900 1901 /* 1902 * hammer2_vfsops.c 1903 */ 1904 int hammer2_vfs_sync(struct mount *mp, int waitflags); 1905 int hammer2_vfs_sync_pmp(hammer2_pfs_t *pmp, int waitfor); 1906 int hammer2_vfs_enospace(hammer2_inode_t *ip, off_t bytes, struct ucred *cred); 1907 1908 hammer2_pfs_t *hammer2_pfsalloc(hammer2_chain_t *chain, 1909 const hammer2_inode_data_t *ripdata, 1910 hammer2_dev_t *force_local); 1911 void hammer2_pfsdealloc(hammer2_pfs_t *pmp, int clindex, int destroying); 1912 int hammer2_vfs_vget(struct mount *mp, struct m_vnode *dvp, 1913 ino_t ino, struct m_vnode **vpp); 1914 int hammer2_vfs_root(struct mount *mp, struct m_vnode **vpp); 1915 1916 void hammer2_lwinprog_ref(hammer2_pfs_t *pmp); 1917 void hammer2_lwinprog_drop(hammer2_pfs_t *pmp); 1918 void hammer2_lwinprog_wait(hammer2_pfs_t *pmp, int pipe); 1919 1920 void hammer2_pfs_memory_wait(hammer2_pfs_t *pmp); 1921 void hammer2_pfs_memory_inc(hammer2_pfs_t *pmp); 1922 void hammer2_pfs_memory_wakeup(hammer2_pfs_t *pmp, int count); 1923 1924 void hammer2_voldata_lock(hammer2_dev_t *hmp); 1925 void hammer2_voldata_unlock(hammer2_dev_t *hmp); 1926 void hammer2_voldata_modify(hammer2_dev_t *hmp); 1927 1928 int hammer2_vfs_init(void); 1929 int hammer2_vfs_uninit(void); 1930 1931 int hammer2_vfs_mount(struct m_vnode *makefs_devvp, struct mount *mp, 1932 const char *label, const struct hammer2_mount_info *mi); 1933 int hammer2_vfs_unmount(struct mount *mp, int mntflags); 1934 1935 /* 1936 * hammer2_freemap.c 1937 */ 1938 int hammer2_freemap_alloc(hammer2_chain_t *chain, size_t bytes); 1939 void hammer2_freemap_adjust(hammer2_dev_t *hmp, 1940 hammer2_blockref_t *bref, int how); 1941 1942 /* 1943 * hammer2_cluster.c 1944 */ 1945 uint8_t hammer2_cluster_type(hammer2_cluster_t *cluster); 1946 void hammer2_cluster_bref(hammer2_cluster_t *cluster, hammer2_blockref_t *bref); 1947 void hammer2_cluster_ref(hammer2_cluster_t *cluster); 1948 void hammer2_cluster_drop(hammer2_cluster_t *cluster); 1949 void hammer2_cluster_unhold(hammer2_cluster_t *cluster); 1950 void hammer2_cluster_rehold(hammer2_cluster_t *cluster); 1951 void hammer2_cluster_lock(hammer2_cluster_t *cluster, int how); 1952 int hammer2_cluster_check(hammer2_cluster_t *cluster, hammer2_key_t lokey, 1953 int flags); 1954 void hammer2_cluster_unlock(hammer2_cluster_t *cluster); 1955 1956 void hammer2_bulkfree_init(hammer2_dev_t *hmp); 1957 void hammer2_bulkfree_uninit(hammer2_dev_t *hmp); 1958 int hammer2_bulkfree_pass(hammer2_dev_t *hmp, hammer2_chain_t *vchain, 1959 struct hammer2_ioc_bulkfree *bfi); 1960 void hammer2_dummy_xop_from_chain(hammer2_xop_head_t *xop, 1961 hammer2_chain_t *chain); 1962 1963 /* 1964 * hammer2_iocom.c 1965 */ 1966 /* 1967 void hammer2_iocom_init(hammer2_dev_t *hmp); 1968 void hammer2_iocom_uninit(hammer2_dev_t *hmp); 1969 void hammer2_cluster_reconnect(hammer2_dev_t *hmp, struct file *fp); 1970 */ 1971 void hammer2_volconf_update(hammer2_dev_t *hmp, int index); 1972 1973 /* 1974 * hammer2_strategy.c 1975 */ 1976 int hammer2_vop_strategy(struct vop_strategy_args *ap); 1977 int hammer2_vop_bmap(struct vop_bmap_args *ap); 1978 void hammer2_bioq_sync(hammer2_pfs_t *pmp); 1979 void hammer2_dedup_record(hammer2_chain_t *chain, hammer2_io_t *dio, 1980 const char *data); 1981 void hammer2_dedup_clear(hammer2_dev_t *hmp); 1982 1983 /* 1984 * hammer2_ondisk.c 1985 */ 1986 int hammer2_open_devvp(const hammer2_devvp_list_t *devvpl, int ronly); 1987 int hammer2_close_devvp(const hammer2_devvp_list_t *devvpl, int ronly); 1988 int hammer2_init_devvp(struct m_vnode *devvp, hammer2_devvp_list_t *devvpl); 1989 void hammer2_cleanup_devvp(hammer2_devvp_list_t *devvpl); 1990 int hammer2_init_vfsvolumes(struct mount *mp, const hammer2_devvp_list_t *devvpl, 1991 hammer2_vfsvolume_t *volumes, 1992 hammer2_volume_data_t *rootvoldata, 1993 int *rootvolzone, 1994 struct m_vnode **rootvoldevvp); 1995 hammer2_vfsvolume_t *hammer2_get_volume(hammer2_dev_t *hmp, hammer2_off_t offset); 1996 1997 /* 1998 * hammer2_vnops.c 1999 */ 2000 int hammer2_reclaim(struct m_vnode *vp); 2001 int hammer2_write(struct m_vnode *vp, void *buf, size_t size, off_t offset); 2002 int hammer2_nresolve(struct m_vnode *dvp, struct m_vnode **vpp, char *name, int nlen); 2003 int hammer2_nmkdir(struct m_vnode *dvp, struct m_vnode **vpp, char *name, int nlen, 2004 mode_t mode); 2005 int hammer2_nlink(struct m_vnode *dvp, struct m_vnode *vp, char *name, int nlen); 2006 int hammer2_ncreate(struct m_vnode *dvp, struct m_vnode **vpp, char *name, int nlen, 2007 mode_t mode); 2008 int hammer2_nmknod(struct m_vnode *dvp, struct m_vnode **vpp, char *name, int nlen, 2009 int type, mode_t mode); 2010 int hammer2_nsymlink(struct m_vnode *dvp, struct m_vnode **vpp, char *name, int nlen, 2011 char *target, mode_t mode); 2012 2013 /* 2014 * hammer2_buf.c 2015 */ 2016 struct m_buf *getblkx(struct m_vnode *vp, off_t loffset, int size, int blkflags, 2017 int slptimeo); 2018 int breadx(struct m_vnode *vp, off_t loffset, int size, struct m_buf **bpp); 2019 int bread_kvabio(struct m_vnode *vp, off_t loffset, int size, struct m_buf **bpp); 2020 void bqrelse(struct m_buf *bp); 2021 int bawrite(struct m_buf *bp); 2022 int uiomovebp(struct m_buf *bp, caddr_t cp, size_t n, struct uio *uio); 2023 2024 /* 2025 * More complex inlines 2026 */ 2027 2028 #define hammer2_xop_gdata(xop) _hammer2_xop_gdata((xop), __FILE__, __LINE__) 2029 2030 static __inline 2031 const hammer2_media_data_t * 2032 _hammer2_xop_gdata(hammer2_xop_head_t *xop, const char *file, int line) 2033 { 2034 hammer2_chain_t *focus; 2035 const void *data; 2036 2037 focus = xop->cluster.focus; 2038 if (focus->dio) { 2039 lockmgr(&focus->diolk, LK_SHARED); 2040 if ((xop->focus_dio = focus->dio) != NULL) { 2041 _hammer2_io_ref(xop->focus_dio HAMMER2_IO_DEBUG_CALL); 2042 hammer2_io_bkvasync(xop->focus_dio); 2043 } 2044 data = focus->data; 2045 lockmgr(&focus->diolk, LK_RELEASE); 2046 } else { 2047 data = focus->data; 2048 } 2049 2050 return data; 2051 } 2052 2053 #define hammer2_xop_pdata(xop) _hammer2_xop_pdata((xop), __FILE__, __LINE__) 2054 2055 static __inline 2056 void 2057 _hammer2_xop_pdata(hammer2_xop_head_t *xop, const char *file, int line) 2058 { 2059 if (xop->focus_dio) 2060 _hammer2_io_putblk(&xop->focus_dio HAMMER2_IO_DEBUG_CALL); 2061 } 2062 2063 static __inline 2064 void 2065 hammer2_knote(struct m_vnode *vp, int flags) 2066 { 2067 if (flags) 2068 KNOTE(&vp->v_pollinfo.vpi_kqinfo.ki_note, flags); 2069 } 2070 2071 static __inline 2072 void 2073 hammer2_iocom_init(hammer2_dev_t *hmp) 2074 { 2075 } 2076 2077 static __inline 2078 void 2079 hammer2_iocom_uninit(hammer2_dev_t *hmp) 2080 { 2081 } 2082 2083 //#endif /* !_KERNEL */ 2084 #endif /* !_VFS_HAMMER2_HAMMER2_H_ */ 2085