1 /* 2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 4 * 5 * This copyrighted material is made available to anyone wishing to use, 6 * modify, copy, or redistribute it subject to the terms and conditions 7 * of the GNU General Public License version 2. 8 */ 9 10 #include <linux/sched.h> 11 #include <linux/slab.h> 12 #include <linux/spinlock.h> 13 #include <linux/completion.h> 14 #include <linux/buffer_head.h> 15 #include <linux/posix_acl.h> 16 #include <linux/sort.h> 17 #include <linux/gfs2_ondisk.h> 18 #include <linux/crc32.h> 19 #include <linux/lm_interface.h> 20 #include <linux/security.h> 21 22 #include "gfs2.h" 23 #include "incore.h" 24 #include "acl.h" 25 #include "bmap.h" 26 #include "dir.h" 27 #include "eattr.h" 28 #include "glock.h" 29 #include "glops.h" 30 #include "inode.h" 31 #include "log.h" 32 #include "meta_io.h" 33 #include "ops_address.h" 34 #include "ops_inode.h" 35 #include "quota.h" 36 #include "rgrp.h" 37 #include "trans.h" 38 #include "util.h" 39 40 struct gfs2_inum_range_host { 41 u64 ir_start; 42 u64 ir_length; 43 }; 44 45 static int iget_test(struct inode *inode, void *opaque) 46 { 47 struct gfs2_inode *ip = GFS2_I(inode); 48 u64 *no_addr = opaque; 49 50 if (ip->i_no_addr == *no_addr && 51 inode->i_private != NULL) 52 return 1; 53 54 return 0; 55 } 56 57 static int iget_set(struct inode *inode, void *opaque) 58 { 59 struct gfs2_inode *ip = GFS2_I(inode); 60 u64 *no_addr = opaque; 61 62 inode->i_ino = (unsigned long)*no_addr; 63 ip->i_no_addr = *no_addr; 64 return 0; 65 } 66 67 struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr) 68 { 69 unsigned long hash = (unsigned long)no_addr; 70 return ilookup5(sb, hash, iget_test, &no_addr); 71 } 72 73 static struct inode *gfs2_iget(struct super_block *sb, u64 no_addr) 74 { 75 unsigned long hash = (unsigned long)no_addr; 76 return iget5_locked(sb, hash, iget_test, iget_set, &no_addr); 77 } 78 79 struct gfs2_skip_data { 80 u64 no_addr; 81 int skipped; 82 }; 83 84 static int iget_skip_test(struct inode *inode, void *opaque) 85 { 86 struct gfs2_inode *ip = GFS2_I(inode); 87 struct gfs2_skip_data *data = opaque; 88 89 if (ip->i_no_addr == data->no_addr && inode->i_private != NULL){ 90 if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE)){ 91 data->skipped = 1; 92 return 0; 93 } 94 return 1; 95 } 96 return 0; 97 } 98 99 static int iget_skip_set(struct inode *inode, void *opaque) 100 { 101 struct gfs2_inode *ip = GFS2_I(inode); 102 struct gfs2_skip_data *data = opaque; 103 104 if (data->skipped) 105 return 1; 106 inode->i_ino = (unsigned long)(data->no_addr); 107 ip->i_no_addr = data->no_addr; 108 return 0; 109 } 110 111 static struct inode *gfs2_iget_skip(struct super_block *sb, 112 u64 no_addr) 113 { 114 struct gfs2_skip_data data; 115 unsigned long hash = (unsigned long)no_addr; 116 117 data.no_addr = no_addr; 118 data.skipped = 0; 119 return iget5_locked(sb, hash, iget_skip_test, iget_skip_set, &data); 120 } 121 122 /** 123 * GFS2 lookup code fills in vfs inode contents based on info obtained 124 * from directory entry inside gfs2_inode_lookup(). This has caused issues 125 * with NFS code path since its get_dentry routine doesn't have the relevant 126 * directory entry when gfs2_inode_lookup() is invoked. Part of the code 127 * segment inside gfs2_inode_lookup code needs to get moved around. 128 * 129 * Clean up I_LOCK and I_NEW as well. 130 **/ 131 132 void gfs2_set_iop(struct inode *inode) 133 { 134 umode_t mode = inode->i_mode; 135 136 if (S_ISREG(mode)) { 137 inode->i_op = &gfs2_file_iops; 138 inode->i_fop = &gfs2_file_fops; 139 inode->i_mapping->a_ops = &gfs2_file_aops; 140 } else if (S_ISDIR(mode)) { 141 inode->i_op = &gfs2_dir_iops; 142 inode->i_fop = &gfs2_dir_fops; 143 } else if (S_ISLNK(mode)) { 144 inode->i_op = &gfs2_symlink_iops; 145 } else { 146 inode->i_op = &gfs2_dev_iops; 147 } 148 149 unlock_new_inode(inode); 150 } 151 152 /** 153 * gfs2_inode_lookup - Lookup an inode 154 * @sb: The super block 155 * @no_addr: The inode number 156 * @type: The type of the inode 157 * @skip_freeing: set this not return an inode if it is currently being freed. 158 * 159 * Returns: A VFS inode, or an error 160 */ 161 162 struct inode *gfs2_inode_lookup(struct super_block *sb, 163 unsigned int type, 164 u64 no_addr, 165 u64 no_formal_ino, int skip_freeing) 166 { 167 struct inode *inode; 168 struct gfs2_inode *ip; 169 struct gfs2_glock *io_gl; 170 int error; 171 172 if (skip_freeing) 173 inode = gfs2_iget_skip(sb, no_addr); 174 else 175 inode = gfs2_iget(sb, no_addr); 176 ip = GFS2_I(inode); 177 178 if (!inode) 179 return ERR_PTR(-ENOBUFS); 180 181 if (inode->i_state & I_NEW) { 182 struct gfs2_sbd *sdp = GFS2_SB(inode); 183 inode->i_private = ip; 184 ip->i_no_formal_ino = no_formal_ino; 185 186 error = gfs2_glock_get(sdp, no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl); 187 if (unlikely(error)) 188 goto fail; 189 ip->i_gl->gl_object = ip; 190 191 error = gfs2_glock_get(sdp, no_addr, &gfs2_iopen_glops, CREATE, &io_gl); 192 if (unlikely(error)) 193 goto fail_put; 194 195 set_bit(GIF_INVALID, &ip->i_flags); 196 error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT, &ip->i_iopen_gh); 197 if (unlikely(error)) 198 goto fail_iopen; 199 ip->i_iopen_gh.gh_gl->gl_object = ip; 200 201 gfs2_glock_put(io_gl); 202 203 if ((type == DT_UNKNOWN) && (no_formal_ino == 0)) 204 goto gfs2_nfsbypass; 205 206 inode->i_mode = DT2IF(type); 207 208 /* 209 * We must read the inode in order to work out its type in 210 * this case. Note that this doesn't happen often as we normally 211 * know the type beforehand. This code path only occurs during 212 * unlinked inode recovery (where it is safe to do this glock, 213 * which is not true in the general case). 214 */ 215 if (type == DT_UNKNOWN) { 216 struct gfs2_holder gh; 217 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); 218 if (unlikely(error)) 219 goto fail_glock; 220 /* Inode is now uptodate */ 221 gfs2_glock_dq_uninit(&gh); 222 } 223 224 gfs2_set_iop(inode); 225 } 226 227 gfs2_nfsbypass: 228 return inode; 229 fail_glock: 230 gfs2_glock_dq(&ip->i_iopen_gh); 231 fail_iopen: 232 gfs2_glock_put(io_gl); 233 fail_put: 234 ip->i_gl->gl_object = NULL; 235 gfs2_glock_put(ip->i_gl); 236 fail: 237 iput(inode); 238 return ERR_PTR(error); 239 } 240 241 static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf) 242 { 243 struct gfs2_dinode_host *di = &ip->i_di; 244 const struct gfs2_dinode *str = buf; 245 246 if (ip->i_no_addr != be64_to_cpu(str->di_num.no_addr)) { 247 if (gfs2_consist_inode(ip)) 248 gfs2_dinode_print(ip); 249 return -EIO; 250 } 251 ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino); 252 ip->i_inode.i_mode = be32_to_cpu(str->di_mode); 253 ip->i_inode.i_rdev = 0; 254 switch (ip->i_inode.i_mode & S_IFMT) { 255 case S_IFBLK: 256 case S_IFCHR: 257 ip->i_inode.i_rdev = MKDEV(be32_to_cpu(str->di_major), 258 be32_to_cpu(str->di_minor)); 259 break; 260 }; 261 262 ip->i_inode.i_uid = be32_to_cpu(str->di_uid); 263 ip->i_inode.i_gid = be32_to_cpu(str->di_gid); 264 /* 265 * We will need to review setting the nlink count here in the 266 * light of the forthcoming ro bind mount work. This is a reminder 267 * to do that. 268 */ 269 ip->i_inode.i_nlink = be32_to_cpu(str->di_nlink); 270 di->di_size = be64_to_cpu(str->di_size); 271 i_size_write(&ip->i_inode, di->di_size); 272 di->di_blocks = be64_to_cpu(str->di_blocks); 273 gfs2_set_inode_blocks(&ip->i_inode); 274 ip->i_inode.i_atime.tv_sec = be64_to_cpu(str->di_atime); 275 ip->i_inode.i_atime.tv_nsec = be32_to_cpu(str->di_atime_nsec); 276 ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime); 277 ip->i_inode.i_mtime.tv_nsec = be32_to_cpu(str->di_mtime_nsec); 278 ip->i_inode.i_ctime.tv_sec = be64_to_cpu(str->di_ctime); 279 ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec); 280 281 di->di_goal_meta = be64_to_cpu(str->di_goal_meta); 282 di->di_goal_data = be64_to_cpu(str->di_goal_data); 283 di->di_generation = be64_to_cpu(str->di_generation); 284 285 di->di_flags = be32_to_cpu(str->di_flags); 286 gfs2_set_inode_flags(&ip->i_inode); 287 di->di_height = be16_to_cpu(str->di_height); 288 289 di->di_depth = be16_to_cpu(str->di_depth); 290 di->di_entries = be32_to_cpu(str->di_entries); 291 292 di->di_eattr = be64_to_cpu(str->di_eattr); 293 return 0; 294 } 295 296 /** 297 * gfs2_inode_refresh - Refresh the incore copy of the dinode 298 * @ip: The GFS2 inode 299 * 300 * Returns: errno 301 */ 302 303 int gfs2_inode_refresh(struct gfs2_inode *ip) 304 { 305 struct buffer_head *dibh; 306 int error; 307 308 error = gfs2_meta_inode_buffer(ip, &dibh); 309 if (error) 310 return error; 311 312 if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), dibh, GFS2_METATYPE_DI)) { 313 brelse(dibh); 314 return -EIO; 315 } 316 317 error = gfs2_dinode_in(ip, dibh->b_data); 318 brelse(dibh); 319 clear_bit(GIF_INVALID, &ip->i_flags); 320 321 return error; 322 } 323 324 int gfs2_dinode_dealloc(struct gfs2_inode *ip) 325 { 326 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); 327 struct gfs2_alloc *al; 328 struct gfs2_rgrpd *rgd; 329 int error; 330 331 if (ip->i_di.di_blocks != 1) { 332 if (gfs2_consist_inode(ip)) 333 gfs2_dinode_print(ip); 334 return -EIO; 335 } 336 337 al = gfs2_alloc_get(ip); 338 339 error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); 340 if (error) 341 goto out; 342 343 error = gfs2_rindex_hold(sdp, &al->al_ri_gh); 344 if (error) 345 goto out_qs; 346 347 rgd = gfs2_blk2rgrpd(sdp, ip->i_no_addr); 348 if (!rgd) { 349 gfs2_consist_inode(ip); 350 error = -EIO; 351 goto out_rindex_relse; 352 } 353 354 error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, 355 &al->al_rgd_gh); 356 if (error) 357 goto out_rindex_relse; 358 359 error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_STATFS + RES_QUOTA, 1); 360 if (error) 361 goto out_rg_gunlock; 362 363 gfs2_trans_add_gl(ip->i_gl); 364 365 gfs2_free_di(rgd, ip); 366 367 gfs2_trans_end(sdp); 368 clear_bit(GLF_STICKY, &ip->i_gl->gl_flags); 369 370 out_rg_gunlock: 371 gfs2_glock_dq_uninit(&al->al_rgd_gh); 372 out_rindex_relse: 373 gfs2_glock_dq_uninit(&al->al_ri_gh); 374 out_qs: 375 gfs2_quota_unhold(ip); 376 out: 377 gfs2_alloc_put(ip); 378 return error; 379 } 380 381 /** 382 * gfs2_change_nlink - Change nlink count on inode 383 * @ip: The GFS2 inode 384 * @diff: The change in the nlink count required 385 * 386 * Returns: errno 387 */ 388 int gfs2_change_nlink(struct gfs2_inode *ip, int diff) 389 { 390 struct buffer_head *dibh; 391 u32 nlink; 392 int error; 393 394 BUG_ON(diff != 1 && diff != -1); 395 nlink = ip->i_inode.i_nlink + diff; 396 397 /* If we are reducing the nlink count, but the new value ends up being 398 bigger than the old one, we must have underflowed. */ 399 if (diff < 0 && nlink > ip->i_inode.i_nlink) { 400 if (gfs2_consist_inode(ip)) 401 gfs2_dinode_print(ip); 402 return -EIO; 403 } 404 405 error = gfs2_meta_inode_buffer(ip, &dibh); 406 if (error) 407 return error; 408 409 if (diff > 0) 410 inc_nlink(&ip->i_inode); 411 else 412 drop_nlink(&ip->i_inode); 413 414 ip->i_inode.i_ctime = CURRENT_TIME; 415 416 gfs2_trans_add_bh(ip->i_gl, dibh, 1); 417 gfs2_dinode_out(ip, dibh->b_data); 418 brelse(dibh); 419 mark_inode_dirty(&ip->i_inode); 420 421 if (ip->i_inode.i_nlink == 0) 422 gfs2_unlink_di(&ip->i_inode); /* mark inode unlinked */ 423 424 return error; 425 } 426 427 struct inode *gfs2_lookup_simple(struct inode *dip, const char *name) 428 { 429 struct qstr qstr; 430 struct inode *inode; 431 gfs2_str2qstr(&qstr, name); 432 inode = gfs2_lookupi(dip, &qstr, 1, NULL); 433 /* gfs2_lookupi has inconsistent callers: vfs 434 * related routines expect NULL for no entry found, 435 * gfs2_lookup_simple callers expect ENOENT 436 * and do not check for NULL. 437 */ 438 if (inode == NULL) 439 return ERR_PTR(-ENOENT); 440 else 441 return inode; 442 } 443 444 445 /** 446 * gfs2_lookupi - Look up a filename in a directory and return its inode 447 * @d_gh: An initialized holder for the directory glock 448 * @name: The name of the inode to look for 449 * @is_root: If 1, ignore the caller's permissions 450 * @i_gh: An uninitialized holder for the new inode glock 451 * 452 * This can be called via the VFS filldir function when NFS is doing 453 * a readdirplus and the inode which its intending to stat isn't 454 * already in cache. In this case we must not take the directory glock 455 * again, since the readdir call will have already taken that lock. 456 * 457 * Returns: errno 458 */ 459 460 struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name, 461 int is_root, struct nameidata *nd) 462 { 463 struct super_block *sb = dir->i_sb; 464 struct gfs2_inode *dip = GFS2_I(dir); 465 struct gfs2_holder d_gh; 466 int error = 0; 467 struct inode *inode = NULL; 468 int unlock = 0; 469 470 if (!name->len || name->len > GFS2_FNAMESIZE) 471 return ERR_PTR(-ENAMETOOLONG); 472 473 if ((name->len == 1 && memcmp(name->name, ".", 1) == 0) || 474 (name->len == 2 && memcmp(name->name, "..", 2) == 0 && 475 dir == sb->s_root->d_inode)) { 476 igrab(dir); 477 return dir; 478 } 479 480 if (gfs2_glock_is_locked_by_me(dip->i_gl) == 0) { 481 error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, &d_gh); 482 if (error) 483 return ERR_PTR(error); 484 unlock = 1; 485 } 486 487 if (!is_root) { 488 error = permission(dir, MAY_EXEC, NULL); 489 if (error) 490 goto out; 491 } 492 493 inode = gfs2_dir_search(dir, name); 494 if (IS_ERR(inode)) 495 error = PTR_ERR(inode); 496 out: 497 if (unlock) 498 gfs2_glock_dq_uninit(&d_gh); 499 if (error == -ENOENT) 500 return NULL; 501 return inode ? inode : ERR_PTR(error); 502 } 503 504 static void gfs2_inum_range_in(struct gfs2_inum_range_host *ir, const void *buf) 505 { 506 const struct gfs2_inum_range *str = buf; 507 508 ir->ir_start = be64_to_cpu(str->ir_start); 509 ir->ir_length = be64_to_cpu(str->ir_length); 510 } 511 512 static void gfs2_inum_range_out(const struct gfs2_inum_range_host *ir, void *buf) 513 { 514 struct gfs2_inum_range *str = buf; 515 516 str->ir_start = cpu_to_be64(ir->ir_start); 517 str->ir_length = cpu_to_be64(ir->ir_length); 518 } 519 520 static int pick_formal_ino_1(struct gfs2_sbd *sdp, u64 *formal_ino) 521 { 522 struct gfs2_inode *ip = GFS2_I(sdp->sd_ir_inode); 523 struct buffer_head *bh; 524 struct gfs2_inum_range_host ir; 525 int error; 526 527 error = gfs2_trans_begin(sdp, RES_DINODE, 0); 528 if (error) 529 return error; 530 mutex_lock(&sdp->sd_inum_mutex); 531 532 error = gfs2_meta_inode_buffer(ip, &bh); 533 if (error) { 534 mutex_unlock(&sdp->sd_inum_mutex); 535 gfs2_trans_end(sdp); 536 return error; 537 } 538 539 gfs2_inum_range_in(&ir, bh->b_data + sizeof(struct gfs2_dinode)); 540 541 if (ir.ir_length) { 542 *formal_ino = ir.ir_start++; 543 ir.ir_length--; 544 gfs2_trans_add_bh(ip->i_gl, bh, 1); 545 gfs2_inum_range_out(&ir, 546 bh->b_data + sizeof(struct gfs2_dinode)); 547 brelse(bh); 548 mutex_unlock(&sdp->sd_inum_mutex); 549 gfs2_trans_end(sdp); 550 return 0; 551 } 552 553 brelse(bh); 554 555 mutex_unlock(&sdp->sd_inum_mutex); 556 gfs2_trans_end(sdp); 557 558 return 1; 559 } 560 561 static int pick_formal_ino_2(struct gfs2_sbd *sdp, u64 *formal_ino) 562 { 563 struct gfs2_inode *ip = GFS2_I(sdp->sd_ir_inode); 564 struct gfs2_inode *m_ip = GFS2_I(sdp->sd_inum_inode); 565 struct gfs2_holder gh; 566 struct buffer_head *bh; 567 struct gfs2_inum_range_host ir; 568 int error; 569 570 error = gfs2_glock_nq_init(m_ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); 571 if (error) 572 return error; 573 574 error = gfs2_trans_begin(sdp, 2 * RES_DINODE, 0); 575 if (error) 576 goto out; 577 mutex_lock(&sdp->sd_inum_mutex); 578 579 error = gfs2_meta_inode_buffer(ip, &bh); 580 if (error) 581 goto out_end_trans; 582 583 gfs2_inum_range_in(&ir, bh->b_data + sizeof(struct gfs2_dinode)); 584 585 if (!ir.ir_length) { 586 struct buffer_head *m_bh; 587 u64 x, y; 588 __be64 z; 589 590 error = gfs2_meta_inode_buffer(m_ip, &m_bh); 591 if (error) 592 goto out_brelse; 593 594 z = *(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode)); 595 x = y = be64_to_cpu(z); 596 ir.ir_start = x; 597 ir.ir_length = GFS2_INUM_QUANTUM; 598 x += GFS2_INUM_QUANTUM; 599 if (x < y) 600 gfs2_consist_inode(m_ip); 601 z = cpu_to_be64(x); 602 gfs2_trans_add_bh(m_ip->i_gl, m_bh, 1); 603 *(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode)) = z; 604 605 brelse(m_bh); 606 } 607 608 *formal_ino = ir.ir_start++; 609 ir.ir_length--; 610 611 gfs2_trans_add_bh(ip->i_gl, bh, 1); 612 gfs2_inum_range_out(&ir, bh->b_data + sizeof(struct gfs2_dinode)); 613 614 out_brelse: 615 brelse(bh); 616 out_end_trans: 617 mutex_unlock(&sdp->sd_inum_mutex); 618 gfs2_trans_end(sdp); 619 out: 620 gfs2_glock_dq_uninit(&gh); 621 return error; 622 } 623 624 static int pick_formal_ino(struct gfs2_sbd *sdp, u64 *inum) 625 { 626 int error; 627 628 error = pick_formal_ino_1(sdp, inum); 629 if (error <= 0) 630 return error; 631 632 error = pick_formal_ino_2(sdp, inum); 633 634 return error; 635 } 636 637 /** 638 * create_ok - OK to create a new on-disk inode here? 639 * @dip: Directory in which dinode is to be created 640 * @name: Name of new dinode 641 * @mode: 642 * 643 * Returns: errno 644 */ 645 646 static int create_ok(struct gfs2_inode *dip, const struct qstr *name, 647 unsigned int mode) 648 { 649 int error; 650 651 error = permission(&dip->i_inode, MAY_WRITE | MAY_EXEC, NULL); 652 if (error) 653 return error; 654 655 /* Don't create entries in an unlinked directory */ 656 if (!dip->i_inode.i_nlink) 657 return -EPERM; 658 659 error = gfs2_dir_check(&dip->i_inode, name, NULL); 660 switch (error) { 661 case -ENOENT: 662 error = 0; 663 break; 664 case 0: 665 return -EEXIST; 666 default: 667 return error; 668 } 669 670 if (dip->i_di.di_entries == (u32)-1) 671 return -EFBIG; 672 if (S_ISDIR(mode) && dip->i_inode.i_nlink == (u32)-1) 673 return -EMLINK; 674 675 return 0; 676 } 677 678 static void munge_mode_uid_gid(struct gfs2_inode *dip, unsigned int *mode, 679 unsigned int *uid, unsigned int *gid) 680 { 681 if (GFS2_SB(&dip->i_inode)->sd_args.ar_suiddir && 682 (dip->i_inode.i_mode & S_ISUID) && dip->i_inode.i_uid) { 683 if (S_ISDIR(*mode)) 684 *mode |= S_ISUID; 685 else if (dip->i_inode.i_uid != current->fsuid) 686 *mode &= ~07111; 687 *uid = dip->i_inode.i_uid; 688 } else 689 *uid = current->fsuid; 690 691 if (dip->i_inode.i_mode & S_ISGID) { 692 if (S_ISDIR(*mode)) 693 *mode |= S_ISGID; 694 *gid = dip->i_inode.i_gid; 695 } else 696 *gid = current->fsgid; 697 } 698 699 static int alloc_dinode(struct gfs2_inode *dip, u64 *no_addr, u64 *generation) 700 { 701 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); 702 int error; 703 704 gfs2_alloc_get(dip); 705 706 dip->i_alloc.al_requested = RES_DINODE; 707 error = gfs2_inplace_reserve(dip); 708 if (error) 709 goto out; 710 711 error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_STATFS, 0); 712 if (error) 713 goto out_ipreserv; 714 715 *no_addr = gfs2_alloc_di(dip, generation); 716 717 gfs2_trans_end(sdp); 718 719 out_ipreserv: 720 gfs2_inplace_release(dip); 721 out: 722 gfs2_alloc_put(dip); 723 return error; 724 } 725 726 /** 727 * init_dinode - Fill in a new dinode structure 728 * @dip: the directory this inode is being created in 729 * @gl: The glock covering the new inode 730 * @inum: the inode number 731 * @mode: the file permissions 732 * @uid: 733 * @gid: 734 * 735 */ 736 737 static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl, 738 const struct gfs2_inum_host *inum, unsigned int mode, 739 unsigned int uid, unsigned int gid, 740 const u64 *generation, dev_t dev, struct buffer_head **bhp) 741 { 742 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); 743 struct gfs2_dinode *di; 744 struct buffer_head *dibh; 745 struct timespec tv = CURRENT_TIME; 746 747 dibh = gfs2_meta_new(gl, inum->no_addr); 748 gfs2_trans_add_bh(gl, dibh, 1); 749 gfs2_metatype_set(dibh, GFS2_METATYPE_DI, GFS2_FORMAT_DI); 750 gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode)); 751 di = (struct gfs2_dinode *)dibh->b_data; 752 753 di->di_num.no_formal_ino = cpu_to_be64(inum->no_formal_ino); 754 di->di_num.no_addr = cpu_to_be64(inum->no_addr); 755 di->di_mode = cpu_to_be32(mode); 756 di->di_uid = cpu_to_be32(uid); 757 di->di_gid = cpu_to_be32(gid); 758 di->di_nlink = 0; 759 di->di_size = 0; 760 di->di_blocks = cpu_to_be64(1); 761 di->di_atime = di->di_mtime = di->di_ctime = cpu_to_be64(tv.tv_sec); 762 di->di_major = cpu_to_be32(MAJOR(dev)); 763 di->di_minor = cpu_to_be32(MINOR(dev)); 764 di->di_goal_meta = di->di_goal_data = cpu_to_be64(inum->no_addr); 765 di->di_generation = cpu_to_be64(*generation); 766 di->di_flags = 0; 767 768 if (S_ISREG(mode)) { 769 if ((dip->i_di.di_flags & GFS2_DIF_INHERIT_JDATA) || 770 gfs2_tune_get(sdp, gt_new_files_jdata)) 771 di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA); 772 if ((dip->i_di.di_flags & GFS2_DIF_INHERIT_DIRECTIO) || 773 gfs2_tune_get(sdp, gt_new_files_directio)) 774 di->di_flags |= cpu_to_be32(GFS2_DIF_DIRECTIO); 775 } else if (S_ISDIR(mode)) { 776 di->di_flags |= cpu_to_be32(dip->i_di.di_flags & 777 GFS2_DIF_INHERIT_DIRECTIO); 778 di->di_flags |= cpu_to_be32(dip->i_di.di_flags & 779 GFS2_DIF_INHERIT_JDATA); 780 } 781 782 di->__pad1 = 0; 783 di->di_payload_format = cpu_to_be32(S_ISDIR(mode) ? GFS2_FORMAT_DE : 0); 784 di->di_height = 0; 785 di->__pad2 = 0; 786 di->__pad3 = 0; 787 di->di_depth = 0; 788 di->di_entries = 0; 789 memset(&di->__pad4, 0, sizeof(di->__pad4)); 790 di->di_eattr = 0; 791 di->di_atime_nsec = cpu_to_be32(tv.tv_nsec); 792 di->di_mtime_nsec = cpu_to_be32(tv.tv_nsec); 793 di->di_ctime_nsec = cpu_to_be32(tv.tv_nsec); 794 memset(&di->di_reserved, 0, sizeof(di->di_reserved)); 795 796 set_buffer_uptodate(dibh); 797 798 *bhp = dibh; 799 } 800 801 static int make_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl, 802 unsigned int mode, const struct gfs2_inum_host *inum, 803 const u64 *generation, dev_t dev, struct buffer_head **bhp) 804 { 805 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); 806 unsigned int uid, gid; 807 int error; 808 809 munge_mode_uid_gid(dip, &mode, &uid, &gid); 810 gfs2_alloc_get(dip); 811 812 error = gfs2_quota_lock(dip, uid, gid); 813 if (error) 814 goto out; 815 816 error = gfs2_quota_check(dip, uid, gid); 817 if (error) 818 goto out_quota; 819 820 error = gfs2_trans_begin(sdp, RES_DINODE + RES_QUOTA, 0); 821 if (error) 822 goto out_quota; 823 824 init_dinode(dip, gl, inum, mode, uid, gid, generation, dev, bhp); 825 gfs2_quota_change(dip, +1, uid, gid); 826 gfs2_trans_end(sdp); 827 828 out_quota: 829 gfs2_quota_unlock(dip); 830 out: 831 gfs2_alloc_put(dip); 832 return error; 833 } 834 835 static int link_dinode(struct gfs2_inode *dip, const struct qstr *name, 836 struct gfs2_inode *ip) 837 { 838 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); 839 struct gfs2_alloc *al; 840 int alloc_required; 841 struct buffer_head *dibh; 842 int error; 843 844 al = gfs2_alloc_get(dip); 845 846 error = gfs2_quota_lock(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); 847 if (error) 848 goto fail; 849 850 error = alloc_required = gfs2_diradd_alloc_required(&dip->i_inode, name); 851 if (alloc_required < 0) 852 goto fail; 853 if (alloc_required) { 854 error = gfs2_quota_check(dip, dip->i_inode.i_uid, dip->i_inode.i_gid); 855 if (error) 856 goto fail_quota_locks; 857 858 al->al_requested = sdp->sd_max_dirres; 859 860 error = gfs2_inplace_reserve(dip); 861 if (error) 862 goto fail_quota_locks; 863 864 error = gfs2_trans_begin(sdp, sdp->sd_max_dirres + 865 al->al_rgd->rd_length + 866 2 * RES_DINODE + 867 RES_STATFS + RES_QUOTA, 0); 868 if (error) 869 goto fail_ipreserv; 870 } else { 871 error = gfs2_trans_begin(sdp, RES_LEAF + 2 * RES_DINODE, 0); 872 if (error) 873 goto fail_quota_locks; 874 } 875 876 error = gfs2_dir_add(&dip->i_inode, name, ip, IF2DT(ip->i_inode.i_mode)); 877 if (error) 878 goto fail_end_trans; 879 880 error = gfs2_meta_inode_buffer(ip, &dibh); 881 if (error) 882 goto fail_end_trans; 883 ip->i_inode.i_nlink = 1; 884 gfs2_trans_add_bh(ip->i_gl, dibh, 1); 885 gfs2_dinode_out(ip, dibh->b_data); 886 brelse(dibh); 887 return 0; 888 889 fail_end_trans: 890 gfs2_trans_end(sdp); 891 892 fail_ipreserv: 893 if (dip->i_alloc.al_rgd) 894 gfs2_inplace_release(dip); 895 896 fail_quota_locks: 897 gfs2_quota_unlock(dip); 898 899 fail: 900 gfs2_alloc_put(dip); 901 return error; 902 } 903 904 static int gfs2_security_init(struct gfs2_inode *dip, struct gfs2_inode *ip) 905 { 906 int err; 907 size_t len; 908 void *value; 909 char *name; 910 struct gfs2_ea_request er; 911 912 err = security_inode_init_security(&ip->i_inode, &dip->i_inode, 913 &name, &value, &len); 914 915 if (err) { 916 if (err == -EOPNOTSUPP) 917 return 0; 918 return err; 919 } 920 921 memset(&er, 0, sizeof(struct gfs2_ea_request)); 922 923 er.er_type = GFS2_EATYPE_SECURITY; 924 er.er_name = name; 925 er.er_data = value; 926 er.er_name_len = strlen(name); 927 er.er_data_len = len; 928 929 err = gfs2_ea_set_i(ip, &er); 930 931 kfree(value); 932 kfree(name); 933 934 return err; 935 } 936 937 /** 938 * gfs2_createi - Create a new inode 939 * @ghs: An array of two holders 940 * @name: The name of the new file 941 * @mode: the permissions on the new inode 942 * 943 * @ghs[0] is an initialized holder for the directory 944 * @ghs[1] is the holder for the inode lock 945 * 946 * If the return value is not NULL, the glocks on both the directory and the new 947 * file are held. A transaction has been started and an inplace reservation 948 * is held, as well. 949 * 950 * Returns: An inode 951 */ 952 953 struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name, 954 unsigned int mode, dev_t dev) 955 { 956 struct inode *inode = NULL; 957 struct gfs2_inode *dip = ghs->gh_gl->gl_object; 958 struct inode *dir = &dip->i_inode; 959 struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); 960 struct gfs2_inum_host inum = { .no_addr = 0, .no_formal_ino = 0 }; 961 int error; 962 u64 generation; 963 struct buffer_head *bh = NULL; 964 965 if (!name->len || name->len > GFS2_FNAMESIZE) 966 return ERR_PTR(-ENAMETOOLONG); 967 968 gfs2_holder_reinit(LM_ST_EXCLUSIVE, 0, ghs); 969 error = gfs2_glock_nq(ghs); 970 if (error) 971 goto fail; 972 973 error = create_ok(dip, name, mode); 974 if (error) 975 goto fail_gunlock; 976 977 error = pick_formal_ino(sdp, &inum.no_formal_ino); 978 if (error) 979 goto fail_gunlock; 980 981 error = alloc_dinode(dip, &inum.no_addr, &generation); 982 if (error) 983 goto fail_gunlock; 984 985 error = gfs2_glock_nq_num(sdp, inum.no_addr, &gfs2_inode_glops, 986 LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1); 987 if (error) 988 goto fail_gunlock; 989 990 error = make_dinode(dip, ghs[1].gh_gl, mode, &inum, &generation, dev, &bh); 991 if (error) 992 goto fail_gunlock2; 993 994 inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode), 995 inum.no_addr, 996 inum.no_formal_ino, 0); 997 if (IS_ERR(inode)) 998 goto fail_gunlock2; 999 1000 error = gfs2_inode_refresh(GFS2_I(inode)); 1001 if (error) 1002 goto fail_gunlock2; 1003 1004 error = gfs2_acl_create(dip, GFS2_I(inode)); 1005 if (error) 1006 goto fail_gunlock2; 1007 1008 error = gfs2_security_init(dip, GFS2_I(inode)); 1009 if (error) 1010 goto fail_gunlock2; 1011 1012 error = link_dinode(dip, name, GFS2_I(inode)); 1013 if (error) 1014 goto fail_gunlock2; 1015 1016 if (bh) 1017 brelse(bh); 1018 if (!inode) 1019 return ERR_PTR(-ENOMEM); 1020 return inode; 1021 1022 fail_gunlock2: 1023 gfs2_glock_dq_uninit(ghs + 1); 1024 if (inode) 1025 iput(inode); 1026 fail_gunlock: 1027 gfs2_glock_dq(ghs); 1028 fail: 1029 if (bh) 1030 brelse(bh); 1031 return ERR_PTR(error); 1032 } 1033 1034 /** 1035 * gfs2_rmdiri - Remove a directory 1036 * @dip: The parent directory of the directory to be removed 1037 * @name: The name of the directory to be removed 1038 * @ip: The GFS2 inode of the directory to be removed 1039 * 1040 * Assumes Glocks on dip and ip are held 1041 * 1042 * Returns: errno 1043 */ 1044 1045 int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name, 1046 struct gfs2_inode *ip) 1047 { 1048 struct qstr dotname; 1049 int error; 1050 1051 if (ip->i_di.di_entries != 2) { 1052 if (gfs2_consist_inode(ip)) 1053 gfs2_dinode_print(ip); 1054 return -EIO; 1055 } 1056 1057 error = gfs2_dir_del(dip, name); 1058 if (error) 1059 return error; 1060 1061 error = gfs2_change_nlink(dip, -1); 1062 if (error) 1063 return error; 1064 1065 gfs2_str2qstr(&dotname, "."); 1066 error = gfs2_dir_del(ip, &dotname); 1067 if (error) 1068 return error; 1069 1070 gfs2_str2qstr(&dotname, ".."); 1071 error = gfs2_dir_del(ip, &dotname); 1072 if (error) 1073 return error; 1074 1075 /* It looks odd, but it really should be done twice */ 1076 error = gfs2_change_nlink(ip, -1); 1077 if (error) 1078 return error; 1079 1080 error = gfs2_change_nlink(ip, -1); 1081 if (error) 1082 return error; 1083 1084 return error; 1085 } 1086 1087 /* 1088 * gfs2_unlink_ok - check to see that a inode is still in a directory 1089 * @dip: the directory 1090 * @name: the name of the file 1091 * @ip: the inode 1092 * 1093 * Assumes that the lock on (at least) @dip is held. 1094 * 1095 * Returns: 0 if the parent/child relationship is correct, errno if it isn't 1096 */ 1097 1098 int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name, 1099 const struct gfs2_inode *ip) 1100 { 1101 int error; 1102 1103 if (IS_IMMUTABLE(&ip->i_inode) || IS_APPEND(&ip->i_inode)) 1104 return -EPERM; 1105 1106 if ((dip->i_inode.i_mode & S_ISVTX) && 1107 dip->i_inode.i_uid != current->fsuid && 1108 ip->i_inode.i_uid != current->fsuid && !capable(CAP_FOWNER)) 1109 return -EPERM; 1110 1111 if (IS_APPEND(&dip->i_inode)) 1112 return -EPERM; 1113 1114 error = permission(&dip->i_inode, MAY_WRITE | MAY_EXEC, NULL); 1115 if (error) 1116 return error; 1117 1118 error = gfs2_dir_check(&dip->i_inode, name, ip); 1119 if (error) 1120 return error; 1121 1122 return 0; 1123 } 1124 1125 /* 1126 * gfs2_ok_to_move - check if it's ok to move a directory to another directory 1127 * @this: move this 1128 * @to: to here 1129 * 1130 * Follow @to back to the root and make sure we don't encounter @this 1131 * Assumes we already hold the rename lock. 1132 * 1133 * Returns: errno 1134 */ 1135 1136 int gfs2_ok_to_move(struct gfs2_inode *this, struct gfs2_inode *to) 1137 { 1138 struct inode *dir = &to->i_inode; 1139 struct super_block *sb = dir->i_sb; 1140 struct inode *tmp; 1141 struct qstr dotdot; 1142 int error = 0; 1143 1144 gfs2_str2qstr(&dotdot, ".."); 1145 1146 igrab(dir); 1147 1148 for (;;) { 1149 if (dir == &this->i_inode) { 1150 error = -EINVAL; 1151 break; 1152 } 1153 if (dir == sb->s_root->d_inode) { 1154 error = 0; 1155 break; 1156 } 1157 1158 tmp = gfs2_lookupi(dir, &dotdot, 1, NULL); 1159 if (IS_ERR(tmp)) { 1160 error = PTR_ERR(tmp); 1161 break; 1162 } 1163 1164 iput(dir); 1165 dir = tmp; 1166 } 1167 1168 iput(dir); 1169 1170 return error; 1171 } 1172 1173 /** 1174 * gfs2_readlinki - return the contents of a symlink 1175 * @ip: the symlink's inode 1176 * @buf: a pointer to the buffer to be filled 1177 * @len: a pointer to the length of @buf 1178 * 1179 * If @buf is too small, a piece of memory is kmalloc()ed and needs 1180 * to be freed by the caller. 1181 * 1182 * Returns: errno 1183 */ 1184 1185 int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len) 1186 { 1187 struct gfs2_holder i_gh; 1188 struct buffer_head *dibh; 1189 unsigned int x; 1190 int error; 1191 1192 gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME, &i_gh); 1193 error = gfs2_glock_nq_atime(&i_gh); 1194 if (error) { 1195 gfs2_holder_uninit(&i_gh); 1196 return error; 1197 } 1198 1199 if (!ip->i_di.di_size) { 1200 gfs2_consist_inode(ip); 1201 error = -EIO; 1202 goto out; 1203 } 1204 1205 error = gfs2_meta_inode_buffer(ip, &dibh); 1206 if (error) 1207 goto out; 1208 1209 x = ip->i_di.di_size + 1; 1210 if (x > *len) { 1211 *buf = kmalloc(x, GFP_KERNEL); 1212 if (!*buf) { 1213 error = -ENOMEM; 1214 goto out_brelse; 1215 } 1216 } 1217 1218 memcpy(*buf, dibh->b_data + sizeof(struct gfs2_dinode), x); 1219 *len = x; 1220 1221 out_brelse: 1222 brelse(dibh); 1223 out: 1224 gfs2_glock_dq_uninit(&i_gh); 1225 return error; 1226 } 1227 1228 /** 1229 * gfs2_glock_nq_atime - Acquire a hold on an inode's glock, and 1230 * conditionally update the inode's atime 1231 * @gh: the holder to acquire 1232 * 1233 * Tests atime (access time) for gfs2_read, gfs2_readdir and gfs2_mmap 1234 * Update if the difference between the current time and the inode's current 1235 * atime is greater than an interval specified at mount. 1236 * 1237 * Returns: errno 1238 */ 1239 1240 int gfs2_glock_nq_atime(struct gfs2_holder *gh) 1241 { 1242 struct gfs2_glock *gl = gh->gh_gl; 1243 struct gfs2_sbd *sdp = gl->gl_sbd; 1244 struct gfs2_inode *ip = gl->gl_object; 1245 s64 quantum = gfs2_tune_get(sdp, gt_atime_quantum); 1246 unsigned int state; 1247 int flags; 1248 int error; 1249 struct timespec tv = CURRENT_TIME; 1250 1251 if (gfs2_assert_warn(sdp, gh->gh_flags & GL_ATIME) || 1252 gfs2_assert_warn(sdp, !(gh->gh_flags & GL_ASYNC)) || 1253 gfs2_assert_warn(sdp, gl->gl_ops == &gfs2_inode_glops)) 1254 return -EINVAL; 1255 1256 state = gh->gh_state; 1257 flags = gh->gh_flags; 1258 1259 error = gfs2_glock_nq(gh); 1260 if (error) 1261 return error; 1262 1263 if (test_bit(SDF_NOATIME, &sdp->sd_flags) || 1264 (sdp->sd_vfs->s_flags & MS_RDONLY)) 1265 return 0; 1266 1267 if (tv.tv_sec - ip->i_inode.i_atime.tv_sec >= quantum) { 1268 gfs2_glock_dq(gh); 1269 gfs2_holder_reinit(LM_ST_EXCLUSIVE, gh->gh_flags & ~LM_FLAG_ANY, 1270 gh); 1271 error = gfs2_glock_nq(gh); 1272 if (error) 1273 return error; 1274 1275 /* Verify that atime hasn't been updated while we were 1276 trying to get exclusive lock. */ 1277 1278 tv = CURRENT_TIME; 1279 if (tv.tv_sec - ip->i_inode.i_atime.tv_sec >= quantum) { 1280 struct buffer_head *dibh; 1281 struct gfs2_dinode *di; 1282 1283 error = gfs2_trans_begin(sdp, RES_DINODE, 0); 1284 if (error == -EROFS) 1285 return 0; 1286 if (error) 1287 goto fail; 1288 1289 error = gfs2_meta_inode_buffer(ip, &dibh); 1290 if (error) 1291 goto fail_end_trans; 1292 1293 ip->i_inode.i_atime = tv; 1294 1295 gfs2_trans_add_bh(ip->i_gl, dibh, 1); 1296 di = (struct gfs2_dinode *)dibh->b_data; 1297 di->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec); 1298 di->di_atime_nsec = cpu_to_be32(ip->i_inode.i_atime.tv_nsec); 1299 brelse(dibh); 1300 1301 gfs2_trans_end(sdp); 1302 } 1303 1304 /* If someone else has asked for the glock, 1305 unlock and let them have it. Then reacquire 1306 in the original state. */ 1307 if (gfs2_glock_is_blocking(gl)) { 1308 gfs2_glock_dq(gh); 1309 gfs2_holder_reinit(state, flags, gh); 1310 return gfs2_glock_nq(gh); 1311 } 1312 } 1313 1314 return 0; 1315 1316 fail_end_trans: 1317 gfs2_trans_end(sdp); 1318 fail: 1319 gfs2_glock_dq(gh); 1320 return error; 1321 } 1322 1323 static int 1324 __gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr) 1325 { 1326 struct buffer_head *dibh; 1327 int error; 1328 1329 error = gfs2_meta_inode_buffer(ip, &dibh); 1330 if (!error) { 1331 error = inode_setattr(&ip->i_inode, attr); 1332 gfs2_assert_warn(GFS2_SB(&ip->i_inode), !error); 1333 gfs2_trans_add_bh(ip->i_gl, dibh, 1); 1334 gfs2_dinode_out(ip, dibh->b_data); 1335 brelse(dibh); 1336 } 1337 return error; 1338 } 1339 1340 /** 1341 * gfs2_setattr_simple - 1342 * @ip: 1343 * @attr: 1344 * 1345 * Called with a reference on the vnode. 1346 * 1347 * Returns: errno 1348 */ 1349 1350 int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr) 1351 { 1352 int error; 1353 1354 if (current->journal_info) 1355 return __gfs2_setattr_simple(ip, attr); 1356 1357 error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE, 0); 1358 if (error) 1359 return error; 1360 1361 error = __gfs2_setattr_simple(ip, attr); 1362 gfs2_trans_end(GFS2_SB(&ip->i_inode)); 1363 return error; 1364 } 1365 1366 void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf) 1367 { 1368 const struct gfs2_dinode_host *di = &ip->i_di; 1369 struct gfs2_dinode *str = buf; 1370 1371 str->di_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 1372 str->di_header.mh_type = cpu_to_be32(GFS2_METATYPE_DI); 1373 str->di_header.__pad0 = 0; 1374 str->di_header.mh_format = cpu_to_be32(GFS2_FORMAT_DI); 1375 str->di_header.__pad1 = 0; 1376 str->di_num.no_addr = cpu_to_be64(ip->i_no_addr); 1377 str->di_num.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino); 1378 str->di_mode = cpu_to_be32(ip->i_inode.i_mode); 1379 str->di_uid = cpu_to_be32(ip->i_inode.i_uid); 1380 str->di_gid = cpu_to_be32(ip->i_inode.i_gid); 1381 str->di_nlink = cpu_to_be32(ip->i_inode.i_nlink); 1382 str->di_size = cpu_to_be64(di->di_size); 1383 str->di_blocks = cpu_to_be64(di->di_blocks); 1384 str->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec); 1385 str->di_mtime = cpu_to_be64(ip->i_inode.i_mtime.tv_sec); 1386 str->di_ctime = cpu_to_be64(ip->i_inode.i_ctime.tv_sec); 1387 1388 str->di_goal_meta = cpu_to_be64(di->di_goal_meta); 1389 str->di_goal_data = cpu_to_be64(di->di_goal_data); 1390 str->di_generation = cpu_to_be64(di->di_generation); 1391 1392 str->di_flags = cpu_to_be32(di->di_flags); 1393 str->di_height = cpu_to_be16(di->di_height); 1394 str->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) && 1395 !(ip->i_di.di_flags & GFS2_DIF_EXHASH) ? 1396 GFS2_FORMAT_DE : 0); 1397 str->di_depth = cpu_to_be16(di->di_depth); 1398 str->di_entries = cpu_to_be32(di->di_entries); 1399 1400 str->di_eattr = cpu_to_be64(di->di_eattr); 1401 str->di_atime_nsec = cpu_to_be32(ip->i_inode.i_atime.tv_nsec); 1402 str->di_mtime_nsec = cpu_to_be32(ip->i_inode.i_mtime.tv_nsec); 1403 str->di_ctime_nsec = cpu_to_be32(ip->i_inode.i_ctime.tv_nsec); 1404 } 1405 1406 void gfs2_dinode_print(const struct gfs2_inode *ip) 1407 { 1408 const struct gfs2_dinode_host *di = &ip->i_di; 1409 1410 printk(KERN_INFO " no_formal_ino = %llu\n", 1411 (unsigned long long)ip->i_no_formal_ino); 1412 printk(KERN_INFO " no_addr = %llu\n", 1413 (unsigned long long)ip->i_no_addr); 1414 printk(KERN_INFO " di_size = %llu\n", (unsigned long long)di->di_size); 1415 printk(KERN_INFO " di_blocks = %llu\n", 1416 (unsigned long long)di->di_blocks); 1417 printk(KERN_INFO " di_goal_meta = %llu\n", 1418 (unsigned long long)di->di_goal_meta); 1419 printk(KERN_INFO " di_goal_data = %llu\n", 1420 (unsigned long long)di->di_goal_data); 1421 printk(KERN_INFO " di_flags = 0x%.8X\n", di->di_flags); 1422 printk(KERN_INFO " di_height = %u\n", di->di_height); 1423 printk(KERN_INFO " di_depth = %u\n", di->di_depth); 1424 printk(KERN_INFO " di_entries = %u\n", di->di_entries); 1425 printk(KERN_INFO " di_eattr = %llu\n", 1426 (unsigned long long)di->di_eattr); 1427 } 1428 1429