| 1 | /* $NetBSD: lfs.h,v 1.199 2016/06/20 03:25:46 dholland Exp $ */ |
| 2 | |
| 3 | /* from NetBSD: dinode.h,v 1.25 2016/01/22 23:06:10 dholland Exp */ |
| 4 | /* from NetBSD: dir.h,v 1.25 2015/09/01 06:16:03 dholland Exp */ |
| 5 | |
| 6 | /*- |
| 7 | * Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc. |
| 8 | * All rights reserved. |
| 9 | * |
| 10 | * This code is derived from software contributed to The NetBSD Foundation |
| 11 | * by Konrad E. Schroder <perseant@hhhh.org>. |
| 12 | * |
| 13 | * Redistribution and use in source and binary forms, with or without |
| 14 | * modification, are permitted provided that the following conditions |
| 15 | * are met: |
| 16 | * 1. Redistributions of source code must retain the above copyright |
| 17 | * notice, this list of conditions and the following disclaimer. |
| 18 | * 2. Redistributions in binary form must reproduce the above copyright |
| 19 | * notice, this list of conditions and the following disclaimer in the |
| 20 | * documentation and/or other materials provided with the distribution. |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 23 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 24 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 25 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 26 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 27 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 28 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 30 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 31 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 32 | * POSSIBILITY OF SUCH DAMAGE. |
| 33 | */ |
| 34 | /*- |
| 35 | * Copyright (c) 1991, 1993 |
| 36 | * The Regents of the University of California. All rights reserved. |
| 37 | * |
| 38 | * Redistribution and use in source and binary forms, with or without |
| 39 | * modification, are permitted provided that the following conditions |
| 40 | * are met: |
| 41 | * 1. Redistributions of source code must retain the above copyright |
| 42 | * notice, this list of conditions and the following disclaimer. |
| 43 | * 2. Redistributions in binary form must reproduce the above copyright |
| 44 | * notice, this list of conditions and the following disclaimer in the |
| 45 | * documentation and/or other materials provided with the distribution. |
| 46 | * 3. Neither the name of the University nor the names of its contributors |
| 47 | * may be used to endorse or promote products derived from this software |
| 48 | * without specific prior written permission. |
| 49 | * |
| 50 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 51 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 52 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 53 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 54 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 55 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 56 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 57 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 58 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 59 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 60 | * SUCH DAMAGE. |
| 61 | * |
| 62 | * @(#)lfs.h 8.9 (Berkeley) 5/8/95 |
| 63 | */ |
| 64 | /* |
| 65 | * Copyright (c) 2002 Networks Associates Technology, Inc. |
| 66 | * All rights reserved. |
| 67 | * |
| 68 | * This software was developed for the FreeBSD Project by Marshall |
| 69 | * Kirk McKusick and Network Associates Laboratories, the Security |
| 70 | * Research Division of Network Associates, Inc. under DARPA/SPAWAR |
| 71 | * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS |
| 72 | * research program |
| 73 | * |
| 74 | * Copyright (c) 1982, 1989, 1993 |
| 75 | * The Regents of the University of California. All rights reserved. |
| 76 | * (c) UNIX System Laboratories, Inc. |
| 77 | * All or some portions of this file are derived from material licensed |
| 78 | * to the University of California by American Telephone and Telegraph |
| 79 | * Co. or Unix System Laboratories, Inc. and are reproduced herein with |
| 80 | * the permission of UNIX System Laboratories, Inc. |
| 81 | * |
| 82 | * Redistribution and use in source and binary forms, with or without |
| 83 | * modification, are permitted provided that the following conditions |
| 84 | * are met: |
| 85 | * 1. Redistributions of source code must retain the above copyright |
| 86 | * notice, this list of conditions and the following disclaimer. |
| 87 | * 2. Redistributions in binary form must reproduce the above copyright |
| 88 | * notice, this list of conditions and the following disclaimer in the |
| 89 | * documentation and/or other materials provided with the distribution. |
| 90 | * 3. Neither the name of the University nor the names of its contributors |
| 91 | * may be used to endorse or promote products derived from this software |
| 92 | * without specific prior written permission. |
| 93 | * |
| 94 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 95 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 96 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 97 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 98 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 99 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 100 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 101 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 102 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 103 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 104 | * SUCH DAMAGE. |
| 105 | * |
| 106 | * @(#)dinode.h 8.9 (Berkeley) 3/29/95 |
| 107 | */ |
| 108 | /* |
| 109 | * Copyright (c) 1982, 1986, 1989, 1993 |
| 110 | * The Regents of the University of California. All rights reserved. |
| 111 | * (c) UNIX System Laboratories, Inc. |
| 112 | * All or some portions of this file are derived from material licensed |
| 113 | * to the University of California by American Telephone and Telegraph |
| 114 | * Co. or Unix System Laboratories, Inc. and are reproduced herein with |
| 115 | * the permission of UNIX System Laboratories, Inc. |
| 116 | * |
| 117 | * Redistribution and use in source and binary forms, with or without |
| 118 | * modification, are permitted provided that the following conditions |
| 119 | * are met: |
| 120 | * 1. Redistributions of source code must retain the above copyright |
| 121 | * notice, this list of conditions and the following disclaimer. |
| 122 | * 2. Redistributions in binary form must reproduce the above copyright |
| 123 | * notice, this list of conditions and the following disclaimer in the |
| 124 | * documentation and/or other materials provided with the distribution. |
| 125 | * 3. Neither the name of the University nor the names of its contributors |
| 126 | * may be used to endorse or promote products derived from this software |
| 127 | * without specific prior written permission. |
| 128 | * |
| 129 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 130 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 131 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 132 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 133 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 134 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 135 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 136 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 137 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 138 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 139 | * SUCH DAMAGE. |
| 140 | * |
| 141 | * @(#)dir.h 8.5 (Berkeley) 4/27/95 |
| 142 | */ |
| 143 | |
| 144 | /* |
| 145 | * NOTE: COORDINATE ON-DISK FORMAT CHANGES WITH THE FREEBSD PROJECT. |
| 146 | */ |
| 147 | |
| 148 | #ifndef _UFS_LFS_LFS_H_ |
| 149 | #define _UFS_LFS_LFS_H_ |
| 150 | |
| 151 | #if !defined(_KERNEL) && !defined(_STANDALONE) |
| 152 | #include <stddef.h> /* for offsetof */ |
| 153 | #endif |
| 154 | |
| 155 | #include <sys/rwlock.h> |
| 156 | #include <sys/mutex.h> |
| 157 | #include <sys/queue.h> |
| 158 | #include <sys/condvar.h> |
| 159 | #include <sys/mount.h> |
| 160 | #include <sys/pool.h> |
| 161 | |
| 162 | /* |
| 163 | * Compile-time options for LFS. |
| 164 | */ |
| 165 | #define LFS_IFIND_RETRIES 16 |
| 166 | #define LFS_LOGLENGTH 1024 /* size of debugging log */ |
| 167 | #define LFS_MAX_ACTIVE 10 /* Dirty segments before ckp forced */ |
| 168 | |
| 169 | /* |
| 170 | * Fixed filesystem layout parameters |
| 171 | */ |
| 172 | #define LFS_LABELPAD 8192 /* LFS label size */ |
| 173 | #define LFS_SBPAD 8192 /* LFS superblock size */ |
| 174 | |
| 175 | #define LFS_UNUSED_INUM 0 /* 0: out of band inode number */ |
| 176 | #define LFS_IFILE_INUM 1 /* 1: IFILE inode number */ |
| 177 | /* 2: Root inode number */ |
| 178 | #define LFS_LOSTFOUNDINO 3 /* 3: lost+found inode number */ |
| 179 | #define LFS_FIRST_INUM 4 /* 4: first free inode number */ |
| 180 | |
| 181 | /* |
| 182 | * The root inode is the root of the file system. Inode 0 can't be used for |
| 183 | * normal purposes and historically bad blocks were linked to inode 1, thus |
| 184 | * the root inode is 2. (Inode 1 is no longer used for this purpose, however |
| 185 | * numerous dump tapes make this assumption, so we are stuck with it). |
| 186 | */ |
| 187 | #define ULFS_ROOTINO ((ino_t)2) |
| 188 | |
| 189 | /* |
| 190 | * The Whiteout inode# is a dummy non-zero inode number which will |
| 191 | * never be allocated to a real file. It is used as a place holder |
| 192 | * in the directory entry which has been tagged as a LFS_DT_WHT entry. |
| 193 | * See the comments about ULFS_ROOTINO above. |
| 194 | */ |
| 195 | #define ULFS_WINO ((ino_t)1) |
| 196 | |
| 197 | |
| 198 | #define LFS_V1_SUMMARY_SIZE 512 /* V1 fixed summary size */ |
| 199 | #define LFS_DFL_SUMMARY_SIZE 512 /* Default summary size */ |
| 200 | |
| 201 | #define LFS_MAXNAMLEN 255 /* maximum name length in a dir */ |
| 202 | |
| 203 | #define ULFS_NXADDR 2 |
| 204 | #define ULFS_NDADDR 12 /* Direct addresses in inode. */ |
| 205 | #define ULFS_NIADDR 3 /* Indirect addresses in inode. */ |
| 206 | |
| 207 | /* |
| 208 | * Adjustable filesystem parameters |
| 209 | */ |
| 210 | #ifndef LFS_ATIME_IFILE |
| 211 | # define LFS_ATIME_IFILE 0 /* Store atime info in ifile (optional in LFSv1) */ |
| 212 | #endif |
| 213 | #define LFS_MARKV_MAXBLKCNT 65536 /* Max block count for lfs_markv() */ |
| 214 | |
| 215 | /* |
| 216 | * Directories |
| 217 | */ |
| 218 | |
| 219 | /* |
| 220 | * Directories in LFS are files; they use the same inode and block |
| 221 | * mapping structures that regular files do. The directory per se is |
| 222 | * manifested in the file contents: an unordered, unstructured |
| 223 | * sequence of variable-size directory entries. |
| 224 | * |
| 225 | * This format and structure is taken (via what was originally shared |
| 226 | * ufs-level code) from FFS. Each directory entry is a fixed header |
| 227 | * followed by a string, the total length padded to a 4-byte boundary. |
| 228 | * All strings include a null terminator; the maximum string length |
| 229 | * is LFS_MAXNAMLEN, which is 255. |
| 230 | * |
| 231 | * The directory entry header structure (struct lfs_dirheader) is just |
| 232 | * the header information. A complete entry is this plus a null- |
| 233 | * terminated name following it, plus some amount of padding. The |
| 234 | * length of the name (not including the null terminator) is given by |
| 235 | * the namlen field of the header; the complete record length, |
| 236 | * including the null terminator and padding, is given by the reclen |
| 237 | * field of the header. The record length is always 4-byte aligned. |
| 238 | * (Even on 64-bit volumes, the record length is only 4-byte aligned, |
| 239 | * not 8-byte.) |
| 240 | * |
| 241 | * Historically, FFS directories were/are organized into blocks of |
| 242 | * size DIRBLKSIZE that can be written atomically to disk at the |
| 243 | * hardware level. Directory entries are not allowed to cross the |
| 244 | * boundaries of these blocks. The resulting atomicity is important |
| 245 | * for the integrity of FFS volumes; however, for LFS it's irrelevant. |
| 246 | * All we have to care about is not writing out directories that |
| 247 | * confuse earlier ufs-based versions of the LFS code. |
| 248 | * |
| 249 | * This means [to be determined]. (XXX) |
| 250 | * |
| 251 | * As DIRBLKSIZE in its FFS sense is hardware-dependent, and file |
| 252 | * system images do from time to time move to different hardware, code |
| 253 | * that reads directories should be prepared to handle directories |
| 254 | * written in a context where DIRBLKSIZE was different (smaller or |
| 255 | * larger) than its current value. Note however that it is not |
| 256 | * sensible for DIRBLKSIZE to be larger than the volume fragment size, |
| 257 | * and not practically possible for it to be larger than the volume |
| 258 | * block size. |
| 259 | * |
| 260 | * Some further notes: |
| 261 | * - the LFS_DIRSIZ macro provides the minimum space needed to hold |
| 262 | * a directory entry. |
| 263 | * - any particular entry may be arbitrarily larger (which is why the |
| 264 | * header stores both the entry size and the name size) to pad out |
| 265 | * unused space. |
| 266 | * - historically the padding in an entry is not necessarily zeroed |
| 267 | * but may contain trash. |
| 268 | * - dp->d_reclen is the size of the entry. This is always 4-byte |
| 269 | * aligned. |
| 270 | * - dp->d_namlen is the length of the string, and should always be |
| 271 | * the same as strlen(dp->d_name). |
| 272 | * - in particular, space available in an entry is given by |
| 273 | * dp->d_reclen - LFS_DIRSIZ(dp), and all space available within a |
| 274 | * directory block is tucked away within an existing entry. |
| 275 | * - all space within a directory block is part of some entry. |
| 276 | * - therefore, inserting a new entry requires finding and |
| 277 | * splitting a suitable existing entry, and when entries are |
| 278 | * removed their space is merged into the entry ahead of them. |
| 279 | * - an empty/unused entry has d_ino set to 0. This normally only |
| 280 | * appears in the first entry in a block, as elsewhere the unused |
| 281 | * entry should have been merged into the one before it. However, |
| 282 | * fsck leaves such entries behind so they must be tolerated |
| 283 | * elsewhere. |
| 284 | * - a completely empty directory block has one entry whose |
| 285 | * d_reclen is DIRBLKSIZ and whose d_ino is 0. |
| 286 | * |
| 287 | * The "old directory format" referenced by the fs->lfs_isolddirfmt |
| 288 | * flag (and some other things) refers to when the type field was |
| 289 | * added to directory entries. This change was made to FFS in the 80s, |
| 290 | * well before LFS was first written; there should be no LFS volumes |
| 291 | * (and certainly no LFS v2-format volumes or LFS64 volumes) where the |
| 292 | * old format pertains. All of the related logic should probably be |
| 293 | * removed; however, it hasn't been yet, and we get to carry it around |
| 294 | * until we can be conclusively sure it isn't needed. |
| 295 | * |
| 296 | * In the "old directory format" there is no type field and the namlen |
| 297 | * field is correspondingly 16 bits wide. On big-endian volumes this |
| 298 | * has no effect: namlen cannot exceed 255, so the upper byte is |
| 299 | * always 0 and this reads back from the type field as LFS_DT_UNKNOWN. |
| 300 | * On little-endian volumes, the namlen field will always be 0 and |
| 301 | * the namlen value needs to be read out of the type field. (The type |
| 302 | * is always LFS_DT_UNKNOWN.) The directory accessor functions take |
| 303 | * care of this so nothing else needs to be aware of it. |
| 304 | * |
| 305 | * LFS_OLDDIRFMT and LFS_NEWDIRFMT are code numbers for the old and |
| 306 | * new directory format respectively. These codes do not appear on |
| 307 | * disk; they're generated from a runtime macro called FSFMT() that's |
| 308 | * cued by other things. This is why (confusingly) LFS_OLDDIRFMT is 1 |
| 309 | * and LFS_NEWDIRFMT is 0. |
| 310 | * |
| 311 | * FSFMT(), LFS_OLDDIRFMT, and LFS_NEWDIRFMT should be removed. (XXX) |
| 312 | */ |
| 313 | |
| 314 | /* |
| 315 | * Directory block size. |
| 316 | */ |
| 317 | #undef LFS_DIRBLKSIZ |
| 318 | #define LFS_DIRBLKSIZ DEV_BSIZE |
| 319 | |
| 320 | /* |
| 321 | * Convert between stat structure type codes and directory entry type codes. |
| 322 | */ |
| 323 | #define LFS_IFTODT(mode) (((mode) & 0170000) >> 12) |
| 324 | #define LFS_DTTOIF(dirtype) ((dirtype) << 12) |
| 325 | |
| 326 | /* |
| 327 | * Theoretically, directories can be more than 2Gb in length; however, in |
| 328 | * practice this seems unlikely. So, we define the type doff_t as a 32-bit |
| 329 | * quantity to keep down the cost of doing lookup on a 32-bit machine. |
| 330 | */ |
| 331 | #define doff_t int32_t |
| 332 | #define lfs_doff_t int32_t |
| 333 | #define LFS_MAXDIRSIZE (0x7fffffff) |
| 334 | |
| 335 | /* |
| 336 | * File types for d_type |
| 337 | */ |
| 338 | #define LFS_DT_UNKNOWN 0 |
| 339 | #define LFS_DT_FIFO 1 |
| 340 | #define LFS_DT_CHR 2 |
| 341 | #define LFS_DT_DIR 4 |
| 342 | #define LFS_DT_BLK 6 |
| 343 | #define LFS_DT_REG 8 |
| 344 | #define LFS_DT_LNK 10 |
| 345 | #define LFS_DT_SOCK 12 |
| 346 | #define LFS_DT_WHT 14 |
| 347 | |
| 348 | /* |
| 349 | * (See notes above) |
| 350 | */ |
| 351 | |
| 352 | struct { |
| 353 | uint32_t ; /* inode number of entry */ |
| 354 | uint16_t ; /* length of this record */ |
| 355 | uint8_t ; /* file type, see below */ |
| 356 | uint8_t ; /* length of string in d_name */ |
| 357 | }; |
| 358 | |
| 359 | struct { |
| 360 | uint32_t ; /* inode number of entry */ |
| 361 | uint32_t ; /* inode number of entry */ |
| 362 | uint16_t ; /* length of this record */ |
| 363 | uint8_t ; /* file type, see below */ |
| 364 | uint8_t ; /* length of string in d_name */ |
| 365 | }; |
| 366 | |
| 367 | union { |
| 368 | struct lfs_dirheader64 ; |
| 369 | struct lfs_dirheader32 ; |
| 370 | }; |
| 371 | |
| 372 | typedef union lfs_dirheader ; |
| 373 | |
| 374 | /* |
| 375 | * Template for manipulating directories. |
| 376 | */ |
| 377 | |
| 378 | struct lfs_dirtemplate32 { |
| 379 | struct lfs_dirheader32 ; |
| 380 | char dot_name[4]; /* must be multiple of 4 */ |
| 381 | struct lfs_dirheader32 ; |
| 382 | char dotdot_name[4]; /* ditto */ |
| 383 | }; |
| 384 | |
| 385 | struct lfs_dirtemplate64 { |
| 386 | struct lfs_dirheader64 ; |
| 387 | char dot_name[4]; /* must be multiple of 4 */ |
| 388 | struct lfs_dirheader64 ; |
| 389 | char dotdot_name[4]; /* ditto */ |
| 390 | }; |
| 391 | |
| 392 | union lfs_dirtemplate { |
| 393 | struct lfs_dirtemplate64 u_64; |
| 394 | struct lfs_dirtemplate32 u_32; |
| 395 | }; |
| 396 | |
| 397 | #if 0 |
| 398 | /* |
| 399 | * This is the old format of directories, sans type element. |
| 400 | */ |
| 401 | struct lfs_odirtemplate { |
| 402 | uint32_t dot_ino; |
| 403 | int16_t dot_reclen; |
| 404 | uint16_t dot_namlen; |
| 405 | char dot_name[4]; /* must be multiple of 4 */ |
| 406 | uint32_t dotdot_ino; |
| 407 | int16_t dotdot_reclen; |
| 408 | uint16_t dotdot_namlen; |
| 409 | char dotdot_name[4]; /* ditto */ |
| 410 | }; |
| 411 | #endif |
| 412 | |
| 413 | /* |
| 414 | * Inodes |
| 415 | */ |
| 416 | |
| 417 | /* |
| 418 | * A dinode contains all the meta-data associated with a LFS file. |
| 419 | * This structure defines the on-disk format of a dinode. Since |
| 420 | * this structure describes an on-disk structure, all its fields |
| 421 | * are defined by types with precise widths. |
| 422 | */ |
| 423 | |
| 424 | struct lfs32_dinode { |
| 425 | uint16_t di_mode; /* 0: IFMT, permissions; see below. */ |
| 426 | int16_t di_nlink; /* 2: File link count. */ |
| 427 | uint32_t di_inumber; /* 4: Inode number. */ |
| 428 | uint64_t di_size; /* 8: File byte count. */ |
| 429 | int32_t di_atime; /* 16: Last access time. */ |
| 430 | int32_t di_atimensec; /* 20: Last access time. */ |
| 431 | int32_t di_mtime; /* 24: Last modified time. */ |
| 432 | int32_t di_mtimensec; /* 28: Last modified time. */ |
| 433 | int32_t di_ctime; /* 32: Last inode change time. */ |
| 434 | int32_t di_ctimensec; /* 36: Last inode change time. */ |
| 435 | int32_t di_db[ULFS_NDADDR]; /* 40: Direct disk blocks. */ |
| 436 | int32_t di_ib[ULFS_NIADDR]; /* 88: Indirect disk blocks. */ |
| 437 | uint32_t di_flags; /* 100: Status flags (chflags). */ |
| 438 | uint32_t di_blocks; /* 104: Blocks actually held. */ |
| 439 | int32_t di_gen; /* 108: Generation number. */ |
| 440 | uint32_t di_uid; /* 112: File owner. */ |
| 441 | uint32_t di_gid; /* 116: File group. */ |
| 442 | uint64_t di_modrev; /* 120: i_modrev for NFSv4 */ |
| 443 | }; |
| 444 | |
| 445 | struct lfs64_dinode { |
| 446 | uint16_t di_mode; /* 0: IFMT, permissions; see below. */ |
| 447 | int16_t di_nlink; /* 2: File link count. */ |
| 448 | uint32_t di_uid; /* 4: File owner. */ |
| 449 | uint32_t di_gid; /* 8: File group. */ |
| 450 | uint32_t di_blksize; /* 12: Inode blocksize. */ |
| 451 | uint64_t di_size; /* 16: File byte count. */ |
| 452 | uint64_t di_blocks; /* 24: Bytes actually held. */ |
| 453 | int64_t di_atime; /* 32: Last access time. */ |
| 454 | int64_t di_mtime; /* 40: Last modified time. */ |
| 455 | int64_t di_ctime; /* 48: Last inode change time. */ |
| 456 | int64_t di_birthtime; /* 56: Inode creation time. */ |
| 457 | int32_t di_mtimensec; /* 64: Last modified time. */ |
| 458 | int32_t di_atimensec; /* 68: Last access time. */ |
| 459 | int32_t di_ctimensec; /* 72: Last inode change time. */ |
| 460 | int32_t di_birthnsec; /* 76: Inode creation time. */ |
| 461 | int32_t di_gen; /* 80: Generation number. */ |
| 462 | uint32_t di_kernflags; /* 84: Kernel flags. */ |
| 463 | uint32_t di_flags; /* 88: Status flags (chflags). */ |
| 464 | int32_t di_extsize; /* 92: External attributes block. */ |
| 465 | int64_t di_extb[ULFS_NXADDR];/* 96: External attributes block. */ |
| 466 | int64_t di_db[ULFS_NDADDR]; /* 112: Direct disk blocks. */ |
| 467 | int64_t di_ib[ULFS_NIADDR]; /* 208: Indirect disk blocks. */ |
| 468 | uint64_t di_modrev; /* 232: i_modrev for NFSv4 */ |
| 469 | uint64_t di_inumber; /* 240: Inode number */ |
| 470 | uint64_t di_spare[1]; /* 244: Reserved; currently unused */ |
| 471 | }; |
| 472 | |
| 473 | union lfs_dinode { |
| 474 | struct lfs64_dinode u_64; |
| 475 | struct lfs32_dinode u_32; |
| 476 | }; |
| 477 | |
| 478 | /* |
| 479 | * The di_db fields may be overlaid with other information for |
| 480 | * file types that do not have associated disk storage. Block |
| 481 | * and character devices overlay the first data block with their |
| 482 | * dev_t value. Short symbolic links place their path in the |
| 483 | * di_db area. |
| 484 | */ |
| 485 | #define di_rdev di_db[0] |
| 486 | |
| 487 | /* Size of the on-disk inode. */ |
| 488 | //#define LFS_DINODE1_SIZE (sizeof(struct ulfs1_dinode)) /* 128 */ |
| 489 | //#define LFS_DINODE2_SIZE (sizeof(struct ulfs2_dinode)) |
| 490 | |
| 491 | /* File types, found in the upper bits of di_mode. */ |
| 492 | #define LFS_IFMT 0170000 /* Mask of file type. */ |
| 493 | #define LFS_IFIFO 0010000 /* Named pipe (fifo). */ |
| 494 | #define LFS_IFCHR 0020000 /* Character device. */ |
| 495 | #define LFS_IFDIR 0040000 /* Directory file. */ |
| 496 | #define LFS_IFBLK 0060000 /* Block device. */ |
| 497 | #define LFS_IFREG 0100000 /* Regular file. */ |
| 498 | #define LFS_IFLNK 0120000 /* Symbolic link. */ |
| 499 | #define LFS_IFSOCK 0140000 /* UNIX domain socket. */ |
| 500 | #define LFS_IFWHT 0160000 /* Whiteout. */ |
| 501 | |
| 502 | /* |
| 503 | * "struct buf" associated definitions |
| 504 | */ |
| 505 | |
| 506 | /* Unassigned disk addresses. */ |
| 507 | #define UNASSIGNED -1 |
| 508 | #define UNWRITTEN -2 |
| 509 | |
| 510 | /* Unused logical block number */ |
| 511 | #define LFS_UNUSED_LBN -1 |
| 512 | |
| 513 | /* |
| 514 | * "struct inode" associated definitions |
| 515 | */ |
| 516 | |
| 517 | /* For convenience */ |
| 518 | #define IN_ALLMOD (IN_MODIFIED|IN_ACCESS|IN_CHANGE|IN_UPDATE|IN_MODIFY|IN_ACCESSED|IN_CLEANING) |
| 519 | |
| 520 | /* |
| 521 | * On-disk and in-memory checkpoint segment usage structure. |
| 522 | */ |
| 523 | typedef struct segusage SEGUSE; |
| 524 | struct segusage { |
| 525 | uint32_t su_nbytes; /* 0: number of live bytes */ |
| 526 | uint32_t su_olastmod; /* 4: SEGUSE last modified timestamp */ |
| 527 | uint16_t su_nsums; /* 8: number of summaries in segment */ |
| 528 | uint16_t su_ninos; /* 10: number of inode blocks in seg */ |
| 529 | |
| 530 | #define SEGUSE_ACTIVE 0x01 /* segment currently being written */ |
| 531 | #define SEGUSE_DIRTY 0x02 /* segment has data in it */ |
| 532 | #define SEGUSE_SUPERBLOCK 0x04 /* segment contains a superblock */ |
| 533 | #define SEGUSE_ERROR 0x08 /* cleaner: do not clean segment */ |
| 534 | #define SEGUSE_EMPTY 0x10 /* segment is empty */ |
| 535 | #define SEGUSE_INVAL 0x20 /* segment is invalid */ |
| 536 | uint32_t su_flags; /* 12: segment flags */ |
| 537 | uint64_t su_lastmod; /* 16: last modified timestamp */ |
| 538 | }; |
| 539 | |
| 540 | typedef struct segusage_v1 SEGUSE_V1; |
| 541 | struct segusage_v1 { |
| 542 | uint32_t su_nbytes; /* 0: number of live bytes */ |
| 543 | uint32_t su_lastmod; /* 4: SEGUSE last modified timestamp */ |
| 544 | uint16_t su_nsums; /* 8: number of summaries in segment */ |
| 545 | uint16_t su_ninos; /* 10: number of inode blocks in seg */ |
| 546 | uint32_t su_flags; /* 12: segment flags */ |
| 547 | }; |
| 548 | |
| 549 | /* |
| 550 | * On-disk file information. One per file with data blocks in the segment. |
| 551 | * |
| 552 | * The FINFO structure is a header; it is followed by fi_nblocks block |
| 553 | * pointers, which are logical block numbers of the file. (These are the |
| 554 | * blocks of the file present in this segment.) |
| 555 | */ |
| 556 | |
| 557 | typedef struct finfo64 FINFO64; |
| 558 | struct finfo64 { |
| 559 | uint32_t fi_nblocks; /* number of blocks */ |
| 560 | uint32_t fi_version; /* version number */ |
| 561 | uint64_t fi_ino; /* inode number */ |
| 562 | uint32_t fi_lastlength; /* length of last block in array */ |
| 563 | uint32_t fi_pad; /* unused */ |
| 564 | }; |
| 565 | |
| 566 | typedef struct finfo32 FINFO32; |
| 567 | struct finfo32 { |
| 568 | uint32_t fi_nblocks; /* number of blocks */ |
| 569 | uint32_t fi_version; /* version number */ |
| 570 | uint32_t fi_ino; /* inode number */ |
| 571 | uint32_t fi_lastlength; /* length of last block in array */ |
| 572 | }; |
| 573 | |
| 574 | typedef union finfo { |
| 575 | struct finfo64 u_64; |
| 576 | struct finfo32 u_32; |
| 577 | } FINFO; |
| 578 | |
| 579 | /* |
| 580 | * inode info (part of the segment summary) |
| 581 | * |
| 582 | * Each one of these is just a block number; wrapping the structure |
| 583 | * around it gives more contextual information in the code about |
| 584 | * what's going on. |
| 585 | */ |
| 586 | |
| 587 | typedef struct iinfo64 { |
| 588 | uint64_t ii_block; /* block number */ |
| 589 | } IINFO64; |
| 590 | |
| 591 | typedef struct iinfo32 { |
| 592 | uint32_t ii_block; /* block number */ |
| 593 | } IINFO32; |
| 594 | |
| 595 | typedef union iinfo { |
| 596 | struct iinfo64 u_64; |
| 597 | struct iinfo32 u_32; |
| 598 | } IINFO; |
| 599 | |
| 600 | /* |
| 601 | * Index file inode entries. |
| 602 | */ |
| 603 | |
| 604 | /* magic value for daddrs */ |
| 605 | #define LFS_UNUSED_DADDR 0 /* out-of-band daddr */ |
| 606 | /* magic value for if_nextfree */ |
| 607 | #define LFS_ORPHAN_NEXTFREE (~(uint32_t)0) /* indicate orphaned file */ |
| 608 | |
| 609 | typedef struct ifile64 IFILE64; |
| 610 | struct ifile64 { |
| 611 | uint32_t if_version; /* inode version number */ |
| 612 | uint32_t if_atime_nsec; /* and nanoseconds */ |
| 613 | uint64_t if_atime_sec; /* Last access time, seconds */ |
| 614 | int64_t if_daddr; /* inode disk address */ |
| 615 | uint64_t if_nextfree; /* next-unallocated inode */ |
| 616 | }; |
| 617 | |
| 618 | typedef struct ifile32 IFILE32; |
| 619 | struct ifile32 { |
| 620 | uint32_t if_version; /* inode version number */ |
| 621 | int32_t if_daddr; /* inode disk address */ |
| 622 | uint32_t if_nextfree; /* next-unallocated inode */ |
| 623 | uint32_t if_atime_sec; /* Last access time, seconds */ |
| 624 | uint32_t if_atime_nsec; /* and nanoseconds */ |
| 625 | }; |
| 626 | |
| 627 | typedef struct ifile_v1 IFILE_V1; |
| 628 | struct ifile_v1 { |
| 629 | uint32_t if_version; /* inode version number */ |
| 630 | int32_t if_daddr; /* inode disk address */ |
| 631 | uint32_t if_nextfree; /* next-unallocated inode */ |
| 632 | #if LFS_ATIME_IFILE |
| 633 | #error "this cannot work" |
| 634 | struct timespec if_atime; /* Last access time */ |
| 635 | #endif |
| 636 | }; |
| 637 | |
| 638 | /* |
| 639 | * Note: struct ifile_v1 is often handled by accessing the first three |
| 640 | * fields of struct ifile32. (XXX: Blah. This should be cleaned up as |
| 641 | * it may in some cases violate the strict-aliasing rules.) |
| 642 | */ |
| 643 | typedef union ifile { |
| 644 | struct ifile64 u_64; |
| 645 | struct ifile32 u_32; |
| 646 | struct ifile_v1 u_v1; |
| 647 | } IFILE; |
| 648 | |
| 649 | /* |
| 650 | * Cleaner information structure. This resides in the ifile and is used |
| 651 | * to pass information from the kernel to the cleaner. |
| 652 | */ |
| 653 | |
| 654 | /* flags for ->flags */ |
| 655 | #define LFS_CLEANER_MUST_CLEAN 0x01 |
| 656 | |
| 657 | typedef struct _cleanerinfo32 { |
| 658 | uint32_t clean; /* 0: number of clean segments */ |
| 659 | uint32_t dirty; /* 4: number of dirty segments */ |
| 660 | int32_t bfree; /* 8: disk blocks free */ |
| 661 | int32_t avail; /* 12: disk blocks available */ |
| 662 | uint32_t free_head; /* 16: head of the inode free list */ |
| 663 | uint32_t free_tail; /* 20: tail of the inode free list */ |
| 664 | uint32_t flags; /* 24: status word from the kernel */ |
| 665 | } CLEANERINFO32; |
| 666 | |
| 667 | typedef struct _cleanerinfo64 { |
| 668 | uint32_t clean; /* 0: number of clean segments */ |
| 669 | uint32_t dirty; /* 4: number of dirty segments */ |
| 670 | int64_t bfree; /* 8: disk blocks free */ |
| 671 | int64_t avail; /* 16: disk blocks available */ |
| 672 | uint64_t free_head; /* 24: head of the inode free list */ |
| 673 | uint64_t free_tail; /* 32: tail of the inode free list */ |
| 674 | uint32_t flags; /* 40: status word from the kernel */ |
| 675 | uint32_t pad; /* 44: must be 64-bit aligned */ |
| 676 | } CLEANERINFO64; |
| 677 | |
| 678 | /* this must not go to disk directly of course */ |
| 679 | typedef union _cleanerinfo { |
| 680 | CLEANERINFO32 u_32; |
| 681 | CLEANERINFO64 u_64; |
| 682 | } CLEANERINFO; |
| 683 | |
| 684 | /* |
| 685 | * On-disk segment summary information |
| 686 | */ |
| 687 | |
| 688 | /* magic value for ss_magic */ |
| 689 | #define SS_MAGIC 0x061561 |
| 690 | |
| 691 | /* flags for ss_flags */ |
| 692 | #define SS_DIROP 0x01 /* segment begins a dirop */ |
| 693 | #define SS_CONT 0x02 /* more partials to finish this write*/ |
| 694 | #define SS_CLEAN 0x04 /* written by the cleaner */ |
| 695 | #define SS_RFW 0x08 /* written by the roll-forward agent */ |
| 696 | #define SS_RECLAIM 0x10 /* written by the roll-forward agent */ |
| 697 | |
| 698 | /* type used for reading checksum signatures from metadata structures */ |
| 699 | typedef uint32_t lfs_checkword; |
| 700 | |
| 701 | typedef struct segsum_v1 SEGSUM_V1; |
| 702 | struct segsum_v1 { |
| 703 | uint32_t ss_sumsum; /* 0: check sum of summary block */ |
| 704 | uint32_t ss_datasum; /* 4: check sum of data */ |
| 705 | uint32_t ss_magic; /* 8: segment summary magic number */ |
| 706 | int32_t ss_next; /* 12: next segment */ |
| 707 | uint32_t ss_create; /* 16: creation time stamp */ |
| 708 | uint16_t ss_nfinfo; /* 20: number of file info structures */ |
| 709 | uint16_t ss_ninos; /* 22: number of inodes in summary */ |
| 710 | uint16_t ss_flags; /* 24: used for directory operations */ |
| 711 | uint16_t ss_pad; /* 26: extra space */ |
| 712 | /* FINFO's and inode daddr's... */ |
| 713 | }; |
| 714 | |
| 715 | typedef struct segsum32 SEGSUM32; |
| 716 | struct segsum32 { |
| 717 | uint32_t ss_sumsum; /* 0: check sum of summary block */ |
| 718 | uint32_t ss_datasum; /* 4: check sum of data */ |
| 719 | uint32_t ss_magic; /* 8: segment summary magic number */ |
| 720 | int32_t ss_next; /* 12: next segment (disk address) */ |
| 721 | uint32_t ss_ident; /* 16: roll-forward fsid */ |
| 722 | uint16_t ss_nfinfo; /* 20: number of file info structures */ |
| 723 | uint16_t ss_ninos; /* 22: number of inodes in summary */ |
| 724 | uint16_t ss_flags; /* 24: used for directory operations */ |
| 725 | uint8_t ss_pad[2]; /* 26: extra space */ |
| 726 | uint32_t ss_reclino; /* 28: inode being reclaimed */ |
| 727 | uint64_t ss_serial; /* 32: serial number */ |
| 728 | uint64_t ss_create; /* 40: time stamp */ |
| 729 | /* FINFO's and inode daddr's... */ |
| 730 | }; |
| 731 | |
| 732 | typedef struct segsum64 SEGSUM64; |
| 733 | struct segsum64 { |
| 734 | uint32_t ss_sumsum; /* 0: check sum of summary block */ |
| 735 | uint32_t ss_datasum; /* 4: check sum of data */ |
| 736 | uint32_t ss_magic; /* 8: segment summary magic number */ |
| 737 | uint32_t ss_ident; /* 12: roll-forward fsid */ |
| 738 | int64_t ss_next; /* 16: next segment (disk address) */ |
| 739 | uint16_t ss_nfinfo; /* 24: number of file info structures */ |
| 740 | uint16_t ss_ninos; /* 26: number of inodes in summary */ |
| 741 | uint16_t ss_flags; /* 28: used for directory operations */ |
| 742 | uint8_t ss_pad[2]; /* 30: extra space */ |
| 743 | uint64_t ss_reclino; /* 32: inode being reclaimed */ |
| 744 | uint64_t ss_serial; /* 40: serial number */ |
| 745 | uint64_t ss_create; /* 48: time stamp */ |
| 746 | /* FINFO's and inode daddr's... */ |
| 747 | }; |
| 748 | |
| 749 | typedef union segsum SEGSUM; |
| 750 | union segsum { |
| 751 | struct segsum64 u_64; |
| 752 | struct segsum32 u_32; |
| 753 | struct segsum_v1 u_v1; |
| 754 | }; |
| 755 | |
| 756 | |
| 757 | /* |
| 758 | * On-disk super block. |
| 759 | * |
| 760 | * We have separate superblock structures for the 32-bit and 64-bit |
| 761 | * LFS, and accessor functions to hide the differences. |
| 762 | * |
| 763 | * For lfs64, the format version is always 2; version 1 lfs is old. |
| 764 | * For both, the inode format version is 0; for lfs32 this selects the |
| 765 | * same 32-bit inode as always, and for lfs64 this selects the larger |
| 766 | * 64-bit inode structure we got from ffsv2. |
| 767 | * |
| 768 | * In lfs64: |
| 769 | * - inode numbers are 64 bit now |
| 770 | * - segments may not be larger than 4G (counted in bytes) |
| 771 | * - there may not be more than 2^32 (or perhaps 2^31) segments |
| 772 | * - the total volume size is limited to 2^63 frags and/or 2^63 |
| 773 | * disk blocks, and probably in practice 2^63 bytes. |
| 774 | */ |
| 775 | |
| 776 | #define LFS_MAGIC 0x070162 |
| 777 | #define LFS_MAGIC_SWAPPED 0x62010700 |
| 778 | |
| 779 | #define LFS64_MAGIC (0x19620701 ^ 0xffffffff) |
| 780 | #define LFS64_MAGIC_SWAPPED (0x01076219 ^ 0xffffffff) |
| 781 | |
| 782 | #define LFS_VERSION 2 |
| 783 | |
| 784 | #define LFS_MIN_SBINTERVAL 5 /* min superblock segment spacing */ |
| 785 | #define LFS_MAXNUMSB 10 /* max number of superblocks */ |
| 786 | |
| 787 | /* flags for dlfs_pflags */ |
| 788 | #define LFS_PF_CLEAN 0x1 |
| 789 | |
| 790 | /* Inode format versions */ |
| 791 | #define LFS_44INODEFMT 0 |
| 792 | #define LFS_MAXINODEFMT 0 |
| 793 | |
| 794 | struct dlfs { |
| 795 | uint32_t dlfs_magic; /* 0: magic number */ |
| 796 | uint32_t dlfs_version; /* 4: version number */ |
| 797 | |
| 798 | uint32_t dlfs_size; /* 8: number of blocks in fs (v1) */ |
| 799 | /* number of frags in fs (v2) */ |
| 800 | uint32_t dlfs_ssize; /* 12: number of blocks per segment (v1) */ |
| 801 | /* number of bytes per segment (v2) */ |
| 802 | uint32_t dlfs_dsize; /* 16: number of disk blocks in fs */ |
| 803 | uint32_t dlfs_bsize; /* 20: file system block size */ |
| 804 | uint32_t dlfs_fsize; /* 24: size of frag blocks in fs */ |
| 805 | uint32_t dlfs_frag; /* 28: number of frags in a block in fs */ |
| 806 | |
| 807 | /* Checkpoint region. */ |
| 808 | uint32_t dlfs_freehd; /* 32: start of the free inode list */ |
| 809 | int32_t dlfs_bfree; /* 36: number of free frags */ |
| 810 | uint32_t dlfs_nfiles; /* 40: number of allocated inodes */ |
| 811 | int32_t dlfs_avail; /* 44: blocks available for writing */ |
| 812 | int32_t dlfs_uinodes; /* 48: inodes in cache not yet on disk */ |
| 813 | int32_t dlfs_idaddr; /* 52: inode file disk address */ |
| 814 | uint32_t dlfs_ifile; /* 56: inode file inode number */ |
| 815 | int32_t dlfs_lastseg; /* 60: address of last segment written */ |
| 816 | int32_t dlfs_nextseg; /* 64: address of next segment to write */ |
| 817 | int32_t dlfs_curseg; /* 68: current segment being written */ |
| 818 | int32_t dlfs_offset; /* 72: offset in curseg for next partial */ |
| 819 | int32_t dlfs_lastpseg; /* 76: address of last partial written */ |
| 820 | uint32_t dlfs_inopf; /* 80: v1: time stamp; v2: inodes per frag */ |
| 821 | |
| 822 | /* These are configuration parameters. */ |
| 823 | uint32_t dlfs_minfree; /* 84: minimum percentage of free blocks */ |
| 824 | |
| 825 | /* These fields can be computed from the others. */ |
| 826 | uint64_t dlfs_maxfilesize; /* 88: maximum representable file size */ |
| 827 | uint32_t dlfs_fsbpseg; /* 96: frags (fsb) per segment */ |
| 828 | uint32_t dlfs_inopb; /* 100: inodes per block */ |
| 829 | uint32_t dlfs_ifpb; /* 104: IFILE entries per block */ |
| 830 | uint32_t dlfs_sepb; /* 108: SEGUSE entries per block */ |
| 831 | uint32_t dlfs_nindir; /* 112: indirect pointers per block */ |
| 832 | uint32_t dlfs_nseg; /* 116: number of segments */ |
| 833 | uint32_t dlfs_nspf; /* 120: number of sectors per fragment */ |
| 834 | uint32_t dlfs_cleansz; /* 124: cleaner info size in blocks */ |
| 835 | uint32_t dlfs_segtabsz; /* 128: segment table size in blocks */ |
| 836 | uint32_t dlfs_segmask; /* 132: calculate offset within a segment */ |
| 837 | uint32_t dlfs_segshift; /* 136: fast mult/div for segments */ |
| 838 | uint32_t dlfs_bshift; /* 140: calc block number from file offset */ |
| 839 | uint32_t dlfs_ffshift; /* 144: fast mult/div for frag from file */ |
| 840 | uint32_t dlfs_fbshift; /* 148: fast mult/div for frag from block */ |
| 841 | uint64_t dlfs_bmask; /* 152: calc block offset from file offset */ |
| 842 | uint64_t dlfs_ffmask; /* 160: calc frag offset from file offset */ |
| 843 | uint64_t dlfs_fbmask; /* 168: calc frag offset from block offset */ |
| 844 | uint32_t dlfs_blktodb; /* 176: blktodb and dbtoblk shift constant */ |
| 845 | uint32_t dlfs_sushift; /* 180: fast mult/div for segusage table */ |
| 846 | |
| 847 | int32_t dlfs_maxsymlinklen; /* 184: max length of an internal symlink */ |
| 848 | /* 188: superblock disk offsets */ |
| 849 | int32_t dlfs_sboffs[LFS_MAXNUMSB]; |
| 850 | |
| 851 | uint32_t dlfs_nclean; /* 228: Number of clean segments */ |
| 852 | u_char dlfs_fsmnt[MNAMELEN]; /* 232: name mounted on */ |
| 853 | uint16_t dlfs_pflags; /* 322: file system persistent flags */ |
| 854 | int32_t dlfs_dmeta; /* 324: total number of dirty summaries */ |
| 855 | uint32_t dlfs_minfreeseg; /* 328: segments not counted in bfree */ |
| 856 | uint32_t dlfs_sumsize; /* 332: size of summary blocks */ |
| 857 | uint64_t dlfs_serial; /* 336: serial number */ |
| 858 | uint32_t dlfs_ibsize; /* 344: size of inode blocks */ |
| 859 | int32_t dlfs_s0addr; /* 348: start of segment 0 */ |
| 860 | uint64_t dlfs_tstamp; /* 352: time stamp */ |
| 861 | uint32_t dlfs_inodefmt; /* 360: inode format version */ |
| 862 | uint32_t dlfs_interleave; /* 364: segment interleave */ |
| 863 | uint32_t dlfs_ident; /* 368: per-fs identifier */ |
| 864 | uint32_t dlfs_fsbtodb; /* 372: fsbtodb and dbtodsb shift constant */ |
| 865 | uint32_t dlfs_resvseg; /* 376: segments reserved for the cleaner */ |
| 866 | int8_t dlfs_pad[128]; /* 380: round to 512 bytes */ |
| 867 | /* Checksum -- last valid disk field. */ |
| 868 | uint32_t dlfs_cksum; /* 508: checksum for superblock checking */ |
| 869 | }; |
| 870 | |
| 871 | struct dlfs64 { |
| 872 | uint32_t dlfs_magic; /* 0: magic number */ |
| 873 | uint32_t dlfs_version; /* 4: version number (2) */ |
| 874 | |
| 875 | uint64_t dlfs_size; /* 8: number of frags in fs (v2) */ |
| 876 | uint64_t dlfs_dsize; /* 16: number of disk blocks in fs */ |
| 877 | uint32_t dlfs_ssize; /* 24: number of bytes per segment (v2) */ |
| 878 | uint32_t dlfs_bsize; /* 28: file system block size */ |
| 879 | uint32_t dlfs_fsize; /* 32: size of frag blocks in fs */ |
| 880 | uint32_t dlfs_frag; /* 36: number of frags in a block in fs */ |
| 881 | |
| 882 | /* Checkpoint region. */ |
| 883 | uint64_t dlfs_freehd; /* 40: start of the free inode list */ |
| 884 | uint64_t dlfs_nfiles; /* 48: number of allocated inodes */ |
| 885 | int64_t dlfs_bfree; /* 56: number of free frags */ |
| 886 | int64_t dlfs_avail; /* 64: blocks available for writing */ |
| 887 | int64_t dlfs_idaddr; /* 72: inode file disk address */ |
| 888 | int32_t dlfs_uinodes; /* 80: inodes in cache not yet on disk */ |
| 889 | uint32_t dlfs_unused_0; /* 84: not used */ |
| 890 | int64_t dlfs_lastseg; /* 88: address of last segment written */ |
| 891 | int64_t dlfs_nextseg; /* 96: address of next segment to write */ |
| 892 | int64_t dlfs_curseg; /* 104: current segment being written */ |
| 893 | int64_t dlfs_offset; /* 112: offset in curseg for next partial */ |
| 894 | int64_t dlfs_lastpseg; /* 120: address of last partial written */ |
| 895 | uint32_t dlfs_inopf; /* 128: inodes per frag */ |
| 896 | |
| 897 | /* These are configuration parameters. */ |
| 898 | uint32_t dlfs_minfree; /* 132: minimum percentage of free blocks */ |
| 899 | |
| 900 | /* These fields can be computed from the others. */ |
| 901 | uint64_t dlfs_maxfilesize; /* 136: maximum representable file size */ |
| 902 | uint32_t dlfs_fsbpseg; /* 144: frags (fsb) per segment */ |
| 903 | uint32_t dlfs_inopb; /* 148: inodes per block */ |
| 904 | uint32_t dlfs_ifpb; /* 152: IFILE entries per block */ |
| 905 | uint32_t dlfs_sepb; /* 156: SEGUSE entries per block */ |
| 906 | uint32_t dlfs_nindir; /* 160: indirect pointers per block */ |
| 907 | uint32_t dlfs_nseg; /* 164: number of segments */ |
| 908 | uint32_t dlfs_nspf; /* 168: number of sectors per fragment */ |
| 909 | uint32_t dlfs_cleansz; /* 172: cleaner info size in blocks */ |
| 910 | uint32_t dlfs_segtabsz; /* 176: segment table size in blocks */ |
| 911 | uint32_t dlfs_bshift; /* 180: calc block number from file offset */ |
| 912 | uint32_t dlfs_ffshift; /* 184: fast mult/div for frag from file */ |
| 913 | uint32_t dlfs_fbshift; /* 188: fast mult/div for frag from block */ |
| 914 | uint64_t dlfs_bmask; /* 192: calc block offset from file offset */ |
| 915 | uint64_t dlfs_ffmask; /* 200: calc frag offset from file offset */ |
| 916 | uint64_t dlfs_fbmask; /* 208: calc frag offset from block offset */ |
| 917 | uint32_t dlfs_blktodb; /* 216: blktodb and dbtoblk shift constant */ |
| 918 | uint32_t dlfs_sushift; /* 220: fast mult/div for segusage table */ |
| 919 | |
| 920 | /* 224: superblock disk offsets */ |
| 921 | int64_t dlfs_sboffs[LFS_MAXNUMSB]; |
| 922 | |
| 923 | int32_t dlfs_maxsymlinklen; /* 304: max len of an internal symlink */ |
| 924 | uint32_t dlfs_nclean; /* 308: Number of clean segments */ |
| 925 | u_char dlfs_fsmnt[MNAMELEN]; /* 312: name mounted on */ |
| 926 | uint16_t dlfs_pflags; /* 402: file system persistent flags */ |
| 927 | int32_t dlfs_dmeta; /* 404: total number of dirty summaries */ |
| 928 | uint32_t dlfs_minfreeseg; /* 408: segments not counted in bfree */ |
| 929 | uint32_t dlfs_sumsize; /* 412: size of summary blocks */ |
| 930 | uint32_t dlfs_ibsize; /* 416: size of inode blocks */ |
| 931 | uint32_t dlfs_inodefmt; /* 420: inode format version */ |
| 932 | uint64_t dlfs_serial; /* 424: serial number */ |
| 933 | int64_t dlfs_s0addr; /* 432: start of segment 0 */ |
| 934 | uint64_t dlfs_tstamp; /* 440: time stamp */ |
| 935 | uint32_t dlfs_interleave; /* 448: segment interleave */ |
| 936 | uint32_t dlfs_ident; /* 452: per-fs identifier */ |
| 937 | uint32_t dlfs_fsbtodb; /* 456: fsbtodb and dbtodsb shift constant */ |
| 938 | uint32_t dlfs_resvseg; /* 460: segments reserved for the cleaner */ |
| 939 | int8_t dlfs_pad[44]; /* 464: round to 512 bytes */ |
| 940 | /* Checksum -- last valid disk field. */ |
| 941 | uint32_t dlfs_cksum; /* 508: checksum for superblock checking */ |
| 942 | }; |
| 943 | |
| 944 | /* Type used for the inode bitmap */ |
| 945 | typedef uint32_t lfs_bm_t; |
| 946 | |
| 947 | /* |
| 948 | * Linked list of segments whose byte count needs updating following a |
| 949 | * file truncation. |
| 950 | */ |
| 951 | struct segdelta { |
| 952 | long segnum; |
| 953 | size_t num; |
| 954 | LIST_ENTRY(segdelta) list; |
| 955 | }; |
| 956 | |
| 957 | /* |
| 958 | * In-memory super block. |
| 959 | */ |
| 960 | struct lfs { |
| 961 | union { /* on-disk parameters */ |
| 962 | struct dlfs u_32; |
| 963 | struct dlfs64 u_64; |
| 964 | } lfs_dlfs_u; |
| 965 | |
| 966 | /* These fields are set at mount time and are meaningless on disk. */ |
| 967 | unsigned lfs_is64 : 1, /* are we lfs64 or lfs32? */ |
| 968 | lfs_dobyteswap : 1, /* are we opposite-endian? */ |
| 969 | lfs_hasolddirfmt : 1; /* dir entries have no d_type */ |
| 970 | |
| 971 | struct segment *lfs_sp; /* current segment being written */ |
| 972 | struct vnode *lfs_ivnode; /* vnode for the ifile */ |
| 973 | uint32_t lfs_seglock; /* single-thread the segment writer */ |
| 974 | pid_t lfs_lockpid; /* pid of lock holder */ |
| 975 | lwpid_t lfs_locklwp; /* lwp of lock holder */ |
| 976 | uint32_t lfs_iocount; /* number of ios pending */ |
| 977 | uint32_t lfs_writer; /* don't allow any dirops to start */ |
| 978 | uint32_t lfs_dirops; /* count of active directory ops */ |
| 979 | uint32_t lfs_dirvcount; /* count of VDIROP nodes in this fs */ |
| 980 | uint32_t lfs_doifile; /* Write ifile blocks on next write */ |
| 981 | uint32_t lfs_nactive; /* Number of segments since last ckp */ |
| 982 | int8_t lfs_fmod; /* super block modified flag */ |
| 983 | int8_t lfs_ronly; /* mounted read-only flag */ |
| 984 | #define LFS_NOTYET 0x01 |
| 985 | #define LFS_IFDIRTY 0x02 |
| 986 | #define LFS_WARNED 0x04 |
| 987 | #define LFS_UNDIROP 0x08 |
| 988 | int8_t lfs_flags; /* currently unused flag */ |
| 989 | uint16_t lfs_activesb; /* toggle between superblocks */ |
| 990 | daddr_t lfs_sbactive; /* disk address of current sb write */ |
| 991 | struct vnode *lfs_flushvp; /* vnode being flushed */ |
| 992 | int lfs_flushvp_fakevref; /* fake vref count for flushvp */ |
| 993 | struct vnode *lfs_unlockvp; /* being inactivated in lfs_segunlock */ |
| 994 | uint32_t lfs_diropwait; /* # procs waiting on dirop flush */ |
| 995 | size_t lfs_devbsize; /* Device block size */ |
| 996 | size_t lfs_devbshift; /* Device block shift */ |
| 997 | krwlock_t lfs_fraglock; |
| 998 | krwlock_t lfs_iflock; /* Ifile lock */ |
| 999 | kcondvar_t lfs_stopcv; /* Wrap lock */ |
| 1000 | struct lwp *lfs_stoplwp; |
| 1001 | pid_t lfs_rfpid; /* Process ID of roll-forward agent */ |
| 1002 | int lfs_nadirop; /* number of active dirop nodes */ |
| 1003 | long lfs_ravail; /* blocks pre-reserved for writing */ |
| 1004 | long lfs_favail; /* blocks pre-reserved for writing */ |
| 1005 | struct lfs_res_blk *lfs_resblk; /* Reserved memory for pageout */ |
| 1006 | TAILQ_HEAD(, inode) lfs_dchainhd; /* dirop vnodes */ |
| 1007 | TAILQ_HEAD(, inode) lfs_pchainhd; /* paging vnodes */ |
| 1008 | #define LFS_RESHASH_WIDTH 17 |
| 1009 | LIST_HEAD(, lfs_res_blk) lfs_reshash[LFS_RESHASH_WIDTH]; |
| 1010 | int lfs_pdflush; /* pagedaemon wants us to flush */ |
| 1011 | uint32_t **lfs_suflags; /* Segment use flags */ |
| 1012 | #ifdef _KERNEL |
| 1013 | struct pool lfs_clpool; /* Pool for struct lfs_cluster */ |
| 1014 | struct pool lfs_bpppool; /* Pool for bpp */ |
| 1015 | struct pool lfs_segpool; /* Pool for struct segment */ |
| 1016 | #endif /* _KERNEL */ |
| 1017 | #define LFS_MAX_CLEANIND 64 |
| 1018 | daddr_t lfs_cleanint[LFS_MAX_CLEANIND]; /* Active cleaning intervals */ |
| 1019 | int lfs_cleanind; /* Index into intervals */ |
| 1020 | int lfs_sleepers; /* # procs sleeping this fs */ |
| 1021 | int lfs_pages; /* dirty pages blaming this fs */ |
| 1022 | lfs_bm_t *lfs_ino_bitmap; /* Inuse inodes bitmap */ |
| 1023 | int lfs_nowrap; /* Suspend log wrap */ |
| 1024 | int lfs_wrappass; /* Allow first log wrap requester to pass */ |
| 1025 | int lfs_wrapstatus; /* Wrap status */ |
| 1026 | int lfs_reclino; /* Inode being reclaimed */ |
| 1027 | daddr_t lfs_startseg; /* Segment we started writing at */ |
| 1028 | LIST_HEAD(, segdelta) lfs_segdhd; /* List of pending trunc accounting events */ |
| 1029 | |
| 1030 | #ifdef _KERNEL |
| 1031 | /* The block device we're mounted on. */ |
| 1032 | dev_t lfs_dev; |
| 1033 | struct vnode *lfs_devvp; |
| 1034 | |
| 1035 | /* ULFS-level information */ |
| 1036 | uint32_t um_flags; /* ULFS flags (below) */ |
| 1037 | u_long um_nindir; /* indirect ptrs per block */ |
| 1038 | u_long um_lognindir; /* log2 of um_nindir */ |
| 1039 | u_long um_bptrtodb; /* indir ptr to disk block */ |
| 1040 | u_long um_seqinc; /* inc between seq blocks */ |
| 1041 | int um_maxsymlinklen; |
| 1042 | int um_dirblksiz; |
| 1043 | uint64_t um_maxfilesize; |
| 1044 | |
| 1045 | /* Stuff used by quota2 code, not currently operable */ |
| 1046 | unsigned lfs_use_quota2 : 1; |
| 1047 | uint32_t lfs_quota_magic; |
| 1048 | uint8_t lfs_quota_flags; |
| 1049 | uint64_t lfs_quotaino[2]; |
| 1050 | |
| 1051 | /* Sleep address replacing &lfs_avail inside the on-disk superblock */ |
| 1052 | /* XXX: should be replaced with a condvar */ |
| 1053 | int lfs_availsleep; |
| 1054 | /* This one replaces &lfs_nextseg... all ditto */ |
| 1055 | int lfs_nextsegsleep; |
| 1056 | |
| 1057 | /* Cleaner lwp, set on first bmapv syscall. */ |
| 1058 | struct lwp *lfs_cleaner_thread; |
| 1059 | |
| 1060 | /* Hint from cleaner, only valid if curlwp == um_cleaner_thread. */ |
| 1061 | /* XXX change this to BLOCK_INFO after resorting this file */ |
| 1062 | struct block_info *lfs_cleaner_hint; |
| 1063 | #endif |
| 1064 | }; |
| 1065 | |
| 1066 | /* |
| 1067 | * Structures used by lfs_bmapv and lfs_markv to communicate information |
| 1068 | * about inodes and data blocks. |
| 1069 | */ |
| 1070 | typedef struct block_info { |
| 1071 | uint64_t bi_inode; /* inode # */ |
| 1072 | int64_t bi_lbn; /* logical block w/in file */ |
| 1073 | int64_t bi_daddr; /* disk address of block */ |
| 1074 | uint64_t bi_segcreate; /* origin segment create time */ |
| 1075 | int bi_version; /* file version number */ |
| 1076 | int bi_size; /* size of the block (if fragment) */ |
| 1077 | void *bi_bp; /* data buffer */ |
| 1078 | } BLOCK_INFO; |
| 1079 | |
| 1080 | /* Compatibility for 7.0 binaries */ |
| 1081 | typedef struct block_info_70 { |
| 1082 | uint32_t bi_inode; /* inode # */ |
| 1083 | int32_t bi_lbn; /* logical block w/in file */ |
| 1084 | int32_t bi_daddr; /* disk address of block */ |
| 1085 | uint64_t bi_segcreate; /* origin segment create time */ |
| 1086 | int bi_version; /* file version number */ |
| 1087 | void *bi_bp; /* data buffer */ |
| 1088 | int bi_size; /* size of the block (if fragment) */ |
| 1089 | } BLOCK_INFO_70; |
| 1090 | |
| 1091 | /* Compatibility for 1.5 binaries */ |
| 1092 | typedef struct block_info_15 { |
| 1093 | uint32_t bi_inode; /* inode # */ |
| 1094 | int32_t bi_lbn; /* logical block w/in file */ |
| 1095 | int32_t bi_daddr; /* disk address of block */ |
| 1096 | uint32_t bi_segcreate; /* origin segment create time */ |
| 1097 | int bi_version; /* file version number */ |
| 1098 | void *bi_bp; /* data buffer */ |
| 1099 | int bi_size; /* size of the block (if fragment) */ |
| 1100 | } BLOCK_INFO_15; |
| 1101 | |
| 1102 | /* |
| 1103 | * 32/64-bit-clean pointer to block pointers. This points into |
| 1104 | * already-existing storage; it is mostly used to access the block |
| 1105 | * pointers following a FINFO. |
| 1106 | */ |
| 1107 | union lfs_blocks { |
| 1108 | int64_t *b64; |
| 1109 | int32_t *b32; |
| 1110 | }; |
| 1111 | |
| 1112 | /* In-memory description of a segment about to be written. */ |
| 1113 | struct segment { |
| 1114 | struct lfs *fs; /* file system pointer */ |
| 1115 | struct buf **bpp; /* pointer to buffer array */ |
| 1116 | struct buf **cbpp; /* pointer to next available bp */ |
| 1117 | struct buf **start_bpp; /* pointer to first bp in this set */ |
| 1118 | struct buf *ibp; /* buffer pointer to inode page */ |
| 1119 | union lfs_dinode *idp; /* pointer to ifile dinode */ |
| 1120 | FINFO *fip; /* current fileinfo pointer */ |
| 1121 | struct vnode *vp; /* vnode being gathered */ |
| 1122 | void *segsum; /* segment summary info */ |
| 1123 | uint32_t ninodes; /* number of inodes in this segment */ |
| 1124 | int32_t seg_bytes_left; /* bytes left in segment */ |
| 1125 | int32_t sum_bytes_left; /* bytes left in summary block */ |
| 1126 | uint32_t seg_number; /* number of this segment */ |
| 1127 | union lfs_blocks start_lbp; /* beginning lbn for this set */ |
| 1128 | |
| 1129 | #define SEGM_CKP 0x0001 /* doing a checkpoint */ |
| 1130 | #define SEGM_CLEAN 0x0002 /* cleaner call; don't sort */ |
| 1131 | #define SEGM_SYNC 0x0004 /* wait for segment */ |
| 1132 | #define SEGM_PROT 0x0008 /* don't inactivate at segunlock */ |
| 1133 | #define SEGM_PAGEDAEMON 0x0010 /* pagedaemon called us */ |
| 1134 | #define SEGM_WRITERD 0x0020 /* LFS writed called us */ |
| 1135 | #define SEGM_FORCE_CKP 0x0040 /* Force checkpoint right away */ |
| 1136 | #define SEGM_RECLAIM 0x0080 /* Writing to reclaim vnode */ |
| 1137 | #define SEGM_SINGLE 0x0100 /* Opportunistic writevnodes */ |
| 1138 | uint16_t seg_flags; /* run-time flags for this segment */ |
| 1139 | uint32_t seg_iocount; /* number of ios pending */ |
| 1140 | int ndupino; /* number of duplicate inodes */ |
| 1141 | }; |
| 1142 | |
| 1143 | /* Statistics Counters */ |
| 1144 | struct lfs_stats { /* Must match sysctl list in lfs_vfsops.h ! */ |
| 1145 | u_int segsused; |
| 1146 | u_int psegwrites; |
| 1147 | u_int psyncwrites; |
| 1148 | u_int pcleanwrites; |
| 1149 | u_int blocktot; |
| 1150 | u_int cleanblocks; |
| 1151 | u_int ncheckpoints; |
| 1152 | u_int nwrites; |
| 1153 | u_int nsync_writes; |
| 1154 | u_int wait_exceeded; |
| 1155 | u_int write_exceeded; |
| 1156 | u_int flush_invoked; |
| 1157 | u_int vflush_invoked; |
| 1158 | u_int clean_inlocked; |
| 1159 | u_int clean_vnlocked; |
| 1160 | u_int segs_reclaimed; |
| 1161 | }; |
| 1162 | |
| 1163 | /* Fcntls to take the place of the lfs syscalls */ |
| 1164 | struct lfs_fcntl_markv { |
| 1165 | BLOCK_INFO *blkiov; /* blocks to relocate */ |
| 1166 | int blkcnt; /* number of blocks (limited to 65536) */ |
| 1167 | }; |
| 1168 | |
| 1169 | #define LFCNSEGWAITALL _FCNR_FSPRIV('L', 14, struct timeval) |
| 1170 | #define LFCNSEGWAIT _FCNR_FSPRIV('L', 15, struct timeval) |
| 1171 | #define LFCNBMAPV _FCNRW_FSPRIV('L', 16, struct lfs_fcntl_markv) |
| 1172 | #define LFCNMARKV _FCNRW_FSPRIV('L', 17, struct lfs_fcntl_markv) |
| 1173 | #define LFCNRECLAIM _FCNO_FSPRIV('L', 4) |
| 1174 | |
| 1175 | struct lfs_fhandle { |
| 1176 | char space[28]; /* FHANDLE_SIZE_COMPAT (but used from userland too) */ |
| 1177 | }; |
| 1178 | #define LFCNREWIND _FCNR_FSPRIV('L', 6, int) |
| 1179 | #define LFCNINVAL _FCNR_FSPRIV('L', 7, int) |
| 1180 | #define LFCNRESIZE _FCNR_FSPRIV('L', 8, int) |
| 1181 | #define LFCNWRAPSTOP _FCNR_FSPRIV('L', 9, int) |
| 1182 | #define LFCNWRAPGO _FCNR_FSPRIV('L', 10, int) |
| 1183 | #define LFCNIFILEFH _FCNW_FSPRIV('L', 11, struct lfs_fhandle) |
| 1184 | #define LFCNWRAPPASS _FCNR_FSPRIV('L', 12, int) |
| 1185 | # define LFS_WRAP_GOING 0x0 |
| 1186 | # define LFS_WRAP_WAITING 0x1 |
| 1187 | #define LFCNWRAPSTATUS _FCNW_FSPRIV('L', 13, int) |
| 1188 | |
| 1189 | /* Debug segment lock */ |
| 1190 | #ifdef notyet |
| 1191 | # define ASSERT_SEGLOCK(fs) KASSERT(LFS_SEGLOCK_HELD(fs)) |
| 1192 | # define ASSERT_NO_SEGLOCK(fs) KASSERT(!LFS_SEGLOCK_HELD(fs)) |
| 1193 | # define ASSERT_DUNNO_SEGLOCK(fs) |
| 1194 | # define ASSERT_MAYBE_SEGLOCK(fs) |
| 1195 | #else /* !notyet */ |
| 1196 | # define ASSERT_DUNNO_SEGLOCK(fs) \ |
| 1197 | DLOG((DLOG_SEG, "lfs func %s seglock wrong (%d)\n", __func__, \ |
| 1198 | LFS_SEGLOCK_HELD(fs))) |
| 1199 | # define ASSERT_SEGLOCK(fs) do { \ |
| 1200 | if (!LFS_SEGLOCK_HELD(fs)) { \ |
| 1201 | DLOG((DLOG_SEG, "lfs func %s seglock wrong (0)\n", __func__)); \ |
| 1202 | } \ |
| 1203 | } while(0) |
| 1204 | # define ASSERT_NO_SEGLOCK(fs) do { \ |
| 1205 | if (LFS_SEGLOCK_HELD(fs)) { \ |
| 1206 | DLOG((DLOG_SEG, "lfs func %s seglock wrong (1)\n", __func__)); \ |
| 1207 | } \ |
| 1208 | } while(0) |
| 1209 | # define ASSERT_MAYBE_SEGLOCK(x) |
| 1210 | #endif /* !notyet */ |
| 1211 | |
| 1212 | /* |
| 1213 | * Arguments to mount LFS filesystems |
| 1214 | */ |
| 1215 | struct ulfs_args { |
| 1216 | char *fspec; /* block special device to mount */ |
| 1217 | }; |
| 1218 | |
| 1219 | __BEGIN_DECLS |
| 1220 | void lfs_itimes(struct inode *, const struct timespec *, |
| 1221 | const struct timespec *, const struct timespec *); |
| 1222 | __END_DECLS |
| 1223 | |
| 1224 | #endif /* !_UFS_LFS_LFS_H_ */ |
| 1225 | |