lustre/llite/namei.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  *  Copyright (c) 2002, 2003 Cluster File Systems, Inc.
   5  *
   6  *   This file is part of Lustre, http://www.lustre.org.
   7  *
   8  *   Lustre is free software; you can redistribute it and/or
   9  *   modify it under the terms of version 2 of the GNU General Public
  10  *   License as published by the Free Software Foundation.
  11  *
  12  *   Lustre is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with Lustre; if not, write to the Free Software
  19  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include <linux/fs.h>
  23 #include <linux/sched.h>
  24 #include <linux/mm.h>
  25 #include <linux/smp_lock.h>
  26 #include <linux/quotaops.h>
  27 #include <linux/highmem.h>
  28 #include <linux/pagemap.h>
  29
  30 #define DEBUG_SUBSYSTEM S_LLITE
  31
  32 #include <obd_support.h>
  33 #include <lustre_fid.h>
  34 #include <lustre_lite.h>
  35 #include <lustre_dlm.h>
  36 #include <lustre_ver.h>
  37 #include <lustre_mdc.h>
  38 #include "llite_internal.h"
  39
  40 /* methods */
  41 extern struct dentry_operations ll_d_ops;
  42
  43 /*
  44  * Check if we have something mounted at the named dchild.
  45  * In such a case there would always be dentry present.
  46  */
  47 static int ll_d_mountpoint(struct dentry *dparent, struct dentry *dchild,
  48                            struct qstr *name)
  49 {
  50         int mounted = 0;
  51
  52         if (unlikely(dchild)) {
  53                 mounted = d_mountpoint(dchild);
  54         } else if (dparent) {
  55                 dchild = d_lookup(dparent, name);
  56                 if (dchild) {
  57                         mounted = d_mountpoint(dchild);
  58                         dput(dchild);
  59                 }
  60         }
  61         return mounted;
  62 }
  63
  64 int ll_unlock(__u32 mode, struct lustre_handle *lockh)
  65 {
  66         ENTRY;
  67
  68         ldlm_lock_decref(lockh, mode);
  69
  70         RETURN(0);
  71 }
  72
  73 /*
  74  * Get an inode by inode number (already instantiated by the intent lookup).
  75  * Returns inode or NULL
  76  */
  77 struct inode *ll_iget(struct super_block *sb, ino_t hash,
  78                       struct lustre_md *md)
  79 {
  80         struct ll_inode_info *lli;
  81         struct inode *inode;
  82         LASSERT(hash != 0);
  83
  84         inode = iget_locked(sb, hash);
  85         if (inode) {
  86                 if (inode->i_state & I_NEW) {
  87                         lli = ll_i2info(inode);
  88                         ll_read_inode2(inode, md);
  89                         unlock_new_inode(inode);
  90                 } else {
  91                         if (!(inode->i_state & (I_FREEING | I_CLEAR)))
  92                                 ll_update_inode(inode, md);
  93                 }
  94                 CDEBUG(D_VFSTRACE, "inode: %lu/%u(%p)\n",
  95                        inode->i_ino, inode->i_generation, inode);
  96         }
  97
  98         return inode;
  99 }
 100
 101 static void ll_drop_negative_dentry(struct inode *dir)
 102 {
 103         struct dentry *dentry, *tmp_alias, *tmp_subdir;
 104
 105         spin_lock(&dcache_lock);
 106 restart:
 107         list_for_each_entry_safe(dentry, tmp_alias,
 108                                  &dir->i_dentry,d_alias) {
 109                 if (!list_empty(&dentry->d_subdirs)) {
 110                         struct dentry *child;
 111                         list_for_each_entry_safe(child, tmp_subdir,
 112                                                  &dentry->d_subdirs,
 113                                                  d_child) {
 114                                 /* XXX Print some debug here? */
 115                                 if (!child->d_inode)
 116                                 /* Negative dentry. If we were
 117                                    dropping dcache lock, go
 118                                    throught the list again */
 119                                         if (ll_drop_dentry(child))
 120                                                 goto restart;
 121                         }
 122                 }
 123         }
 124         spin_unlock(&dcache_lock);
 125 }
 126
 127
 128 int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
 129                        void *data, int flag)
 130 {
 131         int rc;
 132         struct lustre_handle lockh;
 133         ENTRY;
 134
 135         switch (flag) {
 136         case LDLM_CB_BLOCKING:
 137                 ldlm_lock2handle(lock, &lockh);
 138                 rc = ldlm_cli_cancel(&lockh);
 139                 if (rc < 0) {
 140                         CDEBUG(D_INODE, "ldlm_cli_cancel: %d\n", rc);
 141                         RETURN(rc);
 142                 }
 143                 break;
 144         case LDLM_CB_CANCELING: {
 145                 struct inode *inode = ll_inode_from_lock(lock);
 146                 __u64 bits = lock->l_policy_data.l_inodebits.bits;
 147                 struct lu_fid *fid;
 148
 149                 /* Invalidate all dentries associated with this inode */
 150                 if (inode == NULL)
 151                         break;
 152
 153                 LASSERT(lock->l_flags & LDLM_FL_CANCELING);
 154                 if ((bits & MDS_INODELOCK_LOOKUP) &&
 155                     ll_have_md_lock(inode, MDS_INODELOCK_LOOKUP))
 156                         bits &= ~MDS_INODELOCK_LOOKUP;
 157                 if ((bits & MDS_INODELOCK_UPDATE) &&
 158                     ll_have_md_lock(inode, MDS_INODELOCK_UPDATE))
 159                         bits &= ~MDS_INODELOCK_UPDATE;
 160                 if ((bits & MDS_INODELOCK_OPEN) &&
 161                     ll_have_md_lock(inode, MDS_INODELOCK_OPEN))
 162                         bits &= ~MDS_INODELOCK_OPEN;
 163
 164                 fid = ll_inode2fid(inode);
 165                 if (lock->l_resource->lr_name.name[0] != fid_seq(fid) ||
 166                     lock->l_resource->lr_name.name[1] != fid_oid(fid) ||
 167                     lock->l_resource->lr_name.name[2] != fid_ver(fid)) {
 168                         LDLM_ERROR(lock, "data mismatch with object "
 169                                    DFID" (%p)", PFID(fid), inode);
 170                 }
 171
 172                 if (bits & MDS_INODELOCK_OPEN) {
 173                         int flags = 0;
 174                         switch (lock->l_req_mode) {
 175                         case LCK_CW:
 176                                 flags = FMODE_WRITE;
 177                                 break;
 178                         case LCK_PR:
 179                                 flags = FMODE_EXEC;
 180                                 break;
 181                         case LCK_CR:
 182                                 flags = FMODE_READ;
 183                                 break;
 184                         default:
 185                                 CERROR("Unexpected lock mode for OPEN lock "
 186                                        "%d, inode %ld\n", lock->l_req_mode,
 187                                        inode->i_ino);
 188                         }
 189                         ll_md_real_close(inode, flags);
 190                 }
 191
 192                 if (bits & MDS_INODELOCK_UPDATE)
 193                         ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
 194
 195                 if (S_ISDIR(inode->i_mode) &&
 196                      (bits & MDS_INODELOCK_UPDATE)) {
 197                         CDEBUG(D_INODE, "invalidating inode %lu\n",
 198                                inode->i_ino);
 199                         truncate_inode_pages(inode->i_mapping, 0);
 200                         ll_drop_negative_dentry(inode);
 201                 }
 202
 203                 if (inode->i_sb->s_root &&
 204                     inode != inode->i_sb->s_root->d_inode &&
 205                     (bits & MDS_INODELOCK_LOOKUP))
 206                         ll_unhash_aliases(inode);
 207                 iput(inode);
 208                 break;
 209         }
 210         default:
 211                 LBUG();
 212         }
 213
 214         RETURN(0);
 215 }
 216
 217 __u32 ll_i2suppgid(struct inode *i)
 218 {
 219         if (in_group_p(i->i_gid))
 220                 return (__u32)i->i_gid;
 221         else
 222                 return (__u32)(-1);
 223 }
 224
 225 /* Pack the required supplementary groups into the supplied groups array.
 226  * If we don't need to use the groups from the target inode(s) then we
 227  * instead pack one or more groups from the user's supplementary group
 228  * array in case it might be useful.  Not needed if doing an MDS-side upcall. */
 229 void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2)
 230 {
 231 #if 0
 232         int i;
 233 #endif
 234
 235         LASSERT(i1 != NULL);
 236         LASSERT(suppgids != NULL);
 237
 238         suppgids[0] = ll_i2suppgid(i1);
 239
 240         if (i2)
 241                 suppgids[1] = ll_i2suppgid(i2);
 242                 else
 243                         suppgids[1] = -1;
 244
 245 #if 0
 246         for (i = 0; i < current_ngroups; i++) {
 247                 if (suppgids[0] == -1) {
 248                         if (current_groups[i] != suppgids[1])
 249                                 suppgids[0] = current_groups[i];
 250                         continue;
 251                 }
 252                 if (suppgids[1] == -1) {
 253                         if (current_groups[i] != suppgids[0])
 254                                 suppgids[1] = current_groups[i];
 255                         continue;
 256                 }
 257                 break;
 258         }
 259 #endif
 260 }
 261
 262 static void ll_d_add(struct dentry *de, struct inode *inode)
 263 {
 264         CDEBUG(D_DENTRY, "adding inode %p to dentry %p\n", inode, de);
 265         /* d_instantiate */
 266         if (!list_empty(&de->d_alias)) {
 267                 spin_unlock(&dcache_lock);
 268                 CERROR("dentry %.*s %p alias next %p, prev %p\n",
 269                        de->d_name.len, de->d_name.name, de,
 270                        de->d_alias.next, de->d_alias.prev);
 271                 LBUG();
 272         }
 273         if (inode)
 274                 list_add(&de->d_alias, &inode->i_dentry);
 275         de->d_inode = inode;
 276
 277         /* d_rehash */
 278         if (!d_unhashed(de)) {
 279                 spin_unlock(&dcache_lock);
 280                 CERROR("dentry %.*s %p hash next %p\n",
 281                        de->d_name.len, de->d_name.name, de, de->d_hash.next);
 282                 LBUG();
 283         }
 284         d_rehash_cond(de, 0);
 285 }
 286
 287 /* Search "inode"'s alias list for a dentry that has the same name and parent
 288  * as de.  If found, return it.  If not found, return de.
 289  * Lustre can't use d_add_unique because don't unhash aliases for directory
 290  * in ll_revalidate_it.  After revaliadate inode will be have hashed aliases
 291  * and it triggers BUG_ON in d_instantiate_unique (bug #10954).
 292  */
 293 struct dentry *ll_find_alias(struct inode *inode, struct dentry *de)
 294 {
 295         struct list_head *tmp;
 296         struct dentry *dentry;
 297         struct dentry *last_discon = NULL;
 298
 299         spin_lock(&dcache_lock);
 300         list_for_each(tmp, &inode->i_dentry) {
 301                 dentry = list_entry(tmp, struct dentry, d_alias);
 302
 303                 /* We are called here with 'de' already on the aliases list. */
 304                 if (unlikely(dentry == de)) {
 305                         CERROR("whoops\n");
 306                         continue;
 307                 }
 308
 309                 if (dentry->d_flags & DCACHE_DISCONNECTED) {
 310                         LASSERT(last_discon == NULL);
 311                         last_discon = dentry;
 312                         continue;
 313                 }
 314
 315                 if (dentry->d_parent != de->d_parent)
 316                         continue;
 317
 318                 if (dentry->d_name.hash != de->d_name.hash)
 319                         continue;
 320
 321                 if (dentry->d_name.len != de->d_name.len)
 322                         continue;
 323
 324                 if (memcmp(dentry->d_name.name, de->d_name.name,
 325                            de->d_name.len) != 0)
 326                         continue;
 327
 328                 dget_locked(dentry);
 329                 lock_dentry(dentry);
 330                 __d_drop(dentry);
 331 #ifdef DCACHE_LUSTRE_INVALID
 332                 dentry->d_flags &= ~DCACHE_LUSTRE_INVALID;
 333 #endif
 334                 unlock_dentry(dentry);
 335                 d_rehash_cond(dentry, 0); /* avoid taking dcache_lock inside */
 336                 spin_unlock(&dcache_lock);
 337                 iput(inode);
 338                 CDEBUG(D_DENTRY, "alias dentry %.*s (%p) parent %p inode %p "
 339                        "refc %d\n", de->d_name.len, de->d_name.name, de,
 340                        de->d_parent, de->d_inode, atomic_read(&de->d_count));
 341                 return dentry;
 342         }
 343
 344         if (last_discon) {
 345                 CDEBUG(D_DENTRY, "Reuse disconnected dentry %p inode %p "
 346                         "refc %d\n", last_discon, last_discon->d_inode,
 347                         atomic_read(&last_discon->d_count));
 348                 dget_locked(last_discon);
 349                 spin_unlock(&dcache_lock);
 350                 d_rehash(de);
 351                 d_move(last_discon, de);
 352                 iput(inode);
 353                 return last_discon;
 354         }
 355
 356         ll_d_add(de, inode);
 357
 358         spin_unlock(&dcache_lock);
 359
 360         return de;
 361 }
 362
 363 static int lookup_it_finish(struct ptlrpc_request *request,
 364                             struct lookup_intent *it,
 365                             void *data)
 366 {
 367         struct it_cb_data *icbd = data;
 368         struct dentry **de = icbd->icbd_childp;
 369         struct inode *parent = icbd->icbd_parent;
 370         struct ll_sb_info *sbi = ll_i2sbi(parent);
 371         struct inode *inode = NULL;
 372         int rc;
 373
 374         /* NB 1 request reference will be taken away by ll_intent_lock()
 375          * when I return */
 376         if (!it_disposition(it, DISP_LOOKUP_NEG)) {
 377                 ENTRY;
 378
 379                 rc = ll_prep_inode(&inode, request, (*de)->d_sb);
 380                 if (rc)
 381                         RETURN(rc);
 382
 383                 CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u)\n",
 384                        inode, inode->i_ino, inode->i_generation);
 385                 md_set_lock_data(sbi->ll_md_exp,
 386                                  &it->d.lustre.it_lock_handle, inode);
 387
 388                 /* We used to query real size from OSTs here, but actually
 389                    this is not needed. For stat() calls size would be updated
 390                    from subsequent do_revalidate()->ll_inode_revalidate_it() in
 391                    2.4 and
 392                    vfs_getattr_it->ll_getattr()->ll_inode_revalidate_it() in 2.6
 393                    Everybody else who needs correct file size would call
 394                    ll_glimpse_size or some equivalent themselves anyway.
 395                    Also see bug 7198. */
 396
 397                 *de = ll_find_alias(inode, *de);
 398         } else {
 399                 ENTRY;
 400                 /* Check that parent has UPDATE lock. If there is none, we
 401                    cannot afford to hash this dentry (done by ll_d_add) as it
 402                    might get picked up later when UPDATE lock will appear */
 403                 if (ll_have_md_lock(parent, MDS_INODELOCK_UPDATE)) {
 404                         spin_lock(&dcache_lock);
 405                         ll_d_add(*de, inode);
 406                         spin_unlock(&dcache_lock);
 407                 } else {
 408                         (*de)->d_inode = NULL;
 409                         /* We do not want to hash the dentry if don`t have a
 410                          * lock, but if this dentry is later used in d_move,
 411                          * we'd hit uninitialised list head d_hash, so we just
 412                          * do this to init d_hash field but leave dentry
 413                          * unhashed. (bug 10796). */
 414                         d_rehash(*de);
 415                         d_drop(*de);
 416                 }
 417         }
 418
 419         ll_set_dd(*de);
 420         (*de)->d_op = &ll_d_ops;
 421
 422         RETURN(0);
 423 }
 424
 425 static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
 426                                    struct lookup_intent *it, int lookup_flags)
 427 {
 428         struct lookup_intent lookup_it = { .it_op = IT_LOOKUP };
 429         struct dentry *save = dentry, *retval;
 430         struct ptlrpc_request *req = NULL;
 431         struct md_op_data *op_data;
 432         struct it_cb_data icbd;
 433         __u32 opc;
 434         int rc;
 435         ENTRY;
 436
 437         if (dentry->d_name.len > ll_i2sbi(parent)->ll_namelen)
 438                 RETURN(ERR_PTR(-ENAMETOOLONG));
 439
 440         CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),intent=%s\n",
 441                dentry->d_name.len, dentry->d_name.name, parent->i_ino,
 442                parent->i_generation, parent, LL_IT2STR(it));
 443
 444         if (d_mountpoint(dentry))
 445                 CERROR("Tell Peter, lookup on mtpt, it %s\n", LL_IT2STR(it));
 446
 447         ll_frob_intent(&it, &lookup_it);
 448
 449         /* As do_lookup is called before follow_mount, root dentry may be left
 450          * not valid, revalidate it here. */
 451         if (parent->i_sb->s_root && (parent->i_sb->s_root->d_inode == parent) &&
 452             (it->it_op & (IT_OPEN | IT_CREAT))) {
 453                 rc = ll_inode_revalidate_it(parent->i_sb->s_root, it);
 454                 if (rc)
 455                         RETURN(ERR_PTR(rc));
 456         }
 457
 458         icbd.icbd_childp = &dentry;
 459         icbd.icbd_parent = parent;
 460
 461         if (it->it_op & IT_CREAT ||
 462             (it->it_op & IT_OPEN && it->it_create_mode & O_CREAT))
 463                 opc = LUSTRE_OPC_CREATE;
 464         else
 465                 opc = LUSTRE_OPC_ANY;
 466
 467         op_data = ll_prep_md_op_data(NULL, parent, NULL, dentry->d_name.name,
 468                                      dentry->d_name.len, lookup_flags, opc,
 469                                      NULL);
 470         if (IS_ERR(op_data))
 471                 RETURN((void *)op_data);
 472
 473         it->it_create_mode &= ~current->fs->umask;
 474
 475         rc = md_intent_lock(ll_i2mdexp(parent), op_data, NULL, 0, it,
 476                             lookup_flags, &req, ll_md_blocking_ast, 0);
 477         ll_finish_md_op_data(op_data);
 478         if (rc < 0)
 479                 GOTO(out, retval = ERR_PTR(rc));
 480
 481         rc = lookup_it_finish(req, it, &icbd);
 482         if (rc != 0) {
 483                 ll_intent_release(it);
 484                 GOTO(out, retval = ERR_PTR(rc));
 485         }
 486
 487         if ((it->it_op & IT_OPEN) && dentry->d_inode &&
 488             !S_ISREG(dentry->d_inode->i_mode) &&
 489             !S_ISDIR(dentry->d_inode->i_mode)) {
 490                 ll_release_openhandle(dentry, it);
 491         }
 492         ll_lookup_finish_locks(it, dentry);
 493
 494         if (dentry == save)
 495                 GOTO(out, retval = NULL);
 496         else
 497                 GOTO(out, retval = dentry);
 498  out:
 499         if (req)
 500                 ptlrpc_req_finished(req);
 501         return retval;
 502 }
 503
 504 #ifdef HAVE_VFS_INTENT_PATCHES
 505 static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
 506                                    struct nameidata *nd)
 507 {
 508         struct dentry *de;
 509         ENTRY;
 510
 511         if (nd && nd->flags & LOOKUP_LAST && !(nd->flags & LOOKUP_LINK_NOTLAST))
 512                 de = ll_lookup_it(parent, dentry, &nd->intent, nd->flags);
 513         else
 514                 de = ll_lookup_it(parent, dentry, NULL, 0);
 515
 516         RETURN(de);
 517 }
 518 #else
 519 struct lookup_intent *ll_convert_intent(struct open_intent *oit,
 520                                         int lookup_flags)
 521 {
 522         struct lookup_intent *it;
 523
 524         OBD_ALLOC(it, sizeof(*it));
 525         if (!it)
 526                 return ERR_PTR(-ENOMEM);
 527
 528         if (lookup_flags & LOOKUP_OPEN) {
 529                 it->it_op = IT_OPEN;
 530                 if (lookup_flags & LOOKUP_CREATE)
 531                         it->it_op |= IT_CREAT;
 532                 it->it_create_mode = oit->create_mode;
 533                 it->it_flags = oit->flags;
 534         } else {
 535                 it->it_op = IT_GETATTR;
 536         }
 537
 538 #ifndef HAVE_FILE_IN_STRUCT_INTENT
 539                 /* Since there is no way to pass our intent to ll_file_open,
 540                  * just check the file is there. Actual open will be done
 541                  * in ll_file_open */
 542                 if (it->it_op & IT_OPEN)
 543                         it->it_op = IT_LOOKUP;
 544 #endif
 545
 546         return it;
 547 }
 548
 549 static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
 550                                    struct nameidata *nd)
 551 {
 552         struct dentry *de;
 553         ENTRY;
 554
 555         if (nd && !(nd->flags & (LOOKUP_CONTINUE|LOOKUP_PARENT))) {
 556                 struct lookup_intent *it;
 557
 558 #if defined(HAVE_FILE_IN_STRUCT_INTENT) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17))
 559                 /* Did we came here from failed revalidate just to propagate
 560                  * its error? */
 561                 if (nd->flags & LOOKUP_OPEN)
 562                         if (IS_ERR(nd->intent.open.file))
 563                                 RETURN((struct dentry *)nd->intent.open.file);
 564 #endif
 565
 566                 if (ll_d2d(dentry) && ll_d2d(dentry)->lld_it) {
 567                         it = ll_d2d(dentry)->lld_it;
 568                         ll_d2d(dentry)->lld_it = NULL;
 569                 } else {
 570                         it = ll_convert_intent(&nd->intent.open, nd->flags);
 571                         if (IS_ERR(it))
 572                                 RETURN((struct dentry *)it);
 573                 }
 574
 575                 de = ll_lookup_it(parent, dentry, it, nd->flags);
 576                 if (de)
 577                         dentry = de;
 578                 if ((nd->flags & LOOKUP_OPEN) && !IS_ERR(dentry)) { /* Open */
 579                         if (dentry->d_inode &&
 580                             it_disposition(it, DISP_OPEN_OPEN)) { /* nocreate */
 581 #ifdef HAVE_FILE_IN_STRUCT_INTENT
 582                                 if (S_ISFIFO(dentry->d_inode->i_mode)) {
 583                                         // We cannot call open here as it would
 584                                         // deadlock.
 585                                         ptlrpc_req_finished(
 586                                                        (struct ptlrpc_request *)
 587                                                           it->d.lustre.it_data);
 588                                 } else {
 589                                         struct file *filp;
 590                                         nd->intent.open.file->private_data = it;
 591                                         filp =lookup_instantiate_filp(nd,dentry,
 592                                                                       NULL);
 593 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17))
 594 /* 2.6.1[456] have a bug in open_namei() that forgets to check
 595  * nd->intent.open.file for error, so we need to return it as lookup's result
 596  * instead */
 597                                         if (IS_ERR(filp)) {
 598                                                 if (de)
 599                                                         dput(de);
 600                                                 de = (struct dentry *) filp;
 601                                         }
 602 #endif
 603
 604                                 }
 605 #else /* HAVE_FILE_IN_STRUCT_INTENT */
 606                                 /* Release open handle as we have no way to
 607                                  * pass it to ll_file_open */
 608                                 ll_release_openhandle(dentry, it);
 609 #endif /* HAVE_FILE_IN_STRUCT_INTENT */
 610                         } else if (it_disposition(it, DISP_OPEN_CREATE)) {
 611                                 // XXX This can only reliably work on assumption
 612                                 // that there are NO hashed negative dentries.
 613                                 ll_d2d(dentry)->lld_it = it;
 614                                 it = NULL; /* Will be freed in ll_create_nd */
 615                                 /* We absolutely depend on ll_create_nd to be
 616                                  * called to not leak this intent and possible
 617                                  * data attached to it */
 618                         }
 619                 }
 620
 621                 if (it) {
 622                         ll_intent_release(it);
 623                         OBD_FREE(it, sizeof(*it));
 624                 }
 625         } else {
 626                 de = ll_lookup_it(parent, dentry, NULL, 0);
 627         }
 628
 629         RETURN(de);
 630 }
 631 #endif
 632
 633 /* We depend on "mode" being set with the proper file type/umask by now */
 634 static struct inode *ll_create_node(struct inode *dir, const char *name,
 635                                     int namelen, const void *data, int datalen,
 636                                     int mode, __u64 extra,
 637                                     struct lookup_intent *it)
 638 {
 639         struct inode *inode = NULL;
 640         struct ptlrpc_request *request = NULL;
 641         struct ll_sb_info *sbi = ll_i2sbi(dir);
 642         int rc;
 643         ENTRY;
 644
 645         LASSERT(it && it->d.lustre.it_disposition);
 646
 647         LASSERT(it_disposition(it, DISP_ENQ_CREATE_REF));
 648         request = it->d.lustre.it_data;
 649         it_clear_disposition(it, DISP_ENQ_CREATE_REF);
 650         rc = ll_prep_inode(&inode, request, dir->i_sb);
 651         if (rc)
 652                 GOTO(out, inode = ERR_PTR(rc));
 653
 654         LASSERT(list_empty(&inode->i_dentry));
 655
 656         /* We asked for a lock on the directory, but were granted a
 657          * lock on the inode.  Since we finally have an inode pointer,
 658          * stuff it in the lock. */
 659         CDEBUG(D_DLMTRACE, "setting l_ast_data to inode %p (%lu/%u)\n",
 660                inode, inode->i_ino, inode->i_generation);
 661         md_set_lock_data(sbi->ll_md_exp,
 662                          &it->d.lustre.it_lock_handle, inode);
 663         EXIT;
 664  out:
 665         ptlrpc_req_finished(request);
 666         return inode;
 667 }
 668
 669 /*
 670  * By the time this is called, we already have created the directory cache
 671  * entry for the new file, but it is so far negative - it has no inode.
 672  *
 673  * We defer creating the OBD object(s) until open, to keep the intent and
 674  * non-intent code paths similar, and also because we do not have the MDS
 675  * inode number before calling ll_create_node() (which is needed for LOV),
 676  * so we would need to do yet another RPC to the MDS to store the LOV EA
 677  * data on the MDS.  If needed, we would pass the PACKED lmm as data and
 678  * lmm_size in datalen (the MDS still has code which will handle that).
 679  *
 680  * If the create succeeds, we fill in the inode information
 681  * with d_instantiate().
 682  */
 683 static int ll_create_it(struct inode *dir, struct dentry *dentry, int mode,
 684                         struct lookup_intent *it)
 685 {
 686         struct inode *inode;
 687         int rc = 0;
 688         ENTRY;
 689
 690         CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),intent=%s\n",
 691                dentry->d_name.len, dentry->d_name.name, dir->i_ino,
 692                dir->i_generation, dir, LL_IT2STR(it));
 693
 694         rc = it_open_error(DISP_OPEN_CREATE, it);
 695         if (rc)
 696                 RETURN(rc);
 697
 698         inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
 699                                NULL, 0, mode, 0, it);
 700         if (IS_ERR(inode)) {
 701                 RETURN(PTR_ERR(inode));
 702         }
 703
 704         d_instantiate(dentry, inode);
 705         /* Negative dentry may be unhashed if parent does not have UPDATE lock,
 706          * but some callers, e.g. do_coredump, expect dentry to be hashed after
 707          * successful create. Hash it here. */
 708         spin_lock(&dcache_lock);
 709         if (d_unhashed(dentry))
 710                 d_rehash_cond(dentry, 0);
 711         spin_unlock(&dcache_lock);
 712         RETURN(0);
 713 }
 714
 715 static void ll_update_times(struct ptlrpc_request *request,
 716                             struct inode *inode)
 717 {
 718         struct mdt_body *body = req_capsule_server_get(&request->rq_pill,
 719                                                        &RMF_MDT_BODY);
 720
 721         LASSERT(body);
 722         /* mtime is always updated with ctime, but can be set in past.
 723            As write and utime(2) may happen within 1 second, and utime's
 724            mtime has a priority over write's one, so take mtime from mds
 725            for the same ctimes. */
 726         if (body->valid & OBD_MD_FLCTIME &&
 727             body->ctime >= LTIME_S(inode->i_ctime)) {
 728                 LTIME_S(inode->i_ctime) = body->ctime;
 729
 730                 if (body->valid & OBD_MD_FLMTIME) {
 731                         CDEBUG(D_INODE, "setting ino %lu mtime from %lu "
 732                                "to "LPU64"\n", inode->i_ino,
 733                                LTIME_S(inode->i_mtime), body->mtime);
 734                         LTIME_S(inode->i_mtime) = body->mtime;
 735                 }
 736         }
 737 }
 738
 739 static int ll_new_node(struct inode *dir, struct qstr *name,
 740                        const char *tgt, int mode, int rdev,
 741                        struct dentry *dchild, __u32 opc)
 742 {
 743         struct ptlrpc_request *request = NULL;
 744         struct md_op_data *op_data;
 745         struct inode *inode = NULL;
 746         struct ll_sb_info *sbi = ll_i2sbi(dir);
 747         int tgt_len = 0;
 748         int err;
 749
 750         ENTRY;
 751         if (unlikely(tgt != NULL))
 752                 tgt_len = strlen(tgt) + 1;
 753
 754         op_data = ll_prep_md_op_data(NULL, dir, NULL, name->name,
 755                                      name->len, 0, opc, NULL);
 756         if (IS_ERR(op_data))
 757                 GOTO(err_exit, err = PTR_ERR(op_data));
 758
 759         err = md_create(sbi->ll_md_exp, op_data, tgt, tgt_len, mode,
 760                         current->fsuid, current->fsgid,
 761                         current->cap_effective, rdev, &request);
 762         ll_finish_md_op_data(op_data);
 763         if (err)
 764                 GOTO(err_exit, err);
 765
 766         ll_update_times(request, dir);
 767
 768         if (dchild) {
 769                 err = ll_prep_inode(&inode, request, dchild->d_sb);
 770                 if (err)
 771                      GOTO(err_exit, err);
 772
 773                 d_drop(dchild);
 774                 d_instantiate(dchild, inode);
 775                 EXIT;
 776         }
 777 err_exit:
 778         ptlrpc_req_finished(request);
 779
 780         return err;
 781 }
 782
 783 static int ll_mknod_generic(struct inode *dir, struct qstr *name, int mode,
 784                             unsigned rdev, struct dentry *dchild)
 785 {
 786         int err;
 787         ENTRY;
 788
 789         CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p) mode %o dev %x\n",
 790                name->len, name->name, dir->i_ino, dir->i_generation, dir,
 791                mode, rdev);
 792
 793         mode &= ~current->fs->umask;
 794
 795         switch (mode & S_IFMT) {
 796         case 0:
 797                 mode |= S_IFREG; /* for mode = 0 case, fallthrough */
 798         case S_IFREG:
 799         case S_IFCHR:
 800         case S_IFBLK:
 801         case S_IFIFO:
 802         case S_IFSOCK:
 803                 err = ll_new_node(dir, name, NULL, mode, rdev, dchild,
 804                                   LUSTRE_OPC_MKNOD);
 805                 break;
 806         case S_IFDIR:
 807                 err = -EPERM;
 808                 break;
 809         default:
 810                 err = -EINVAL;
 811         }
 812         RETURN(err);
 813 }
 814
 815 #ifndef HAVE_VFS_INTENT_PATCHES
 816 static int ll_create_nd(struct inode *dir, struct dentry *dentry,
 817                         int mode, struct nameidata *nd)
 818 {
 819         struct lookup_intent *it = ll_d2d(dentry)->lld_it;
 820         int rc;
 821
 822         if (!it)
 823                 return ll_mknod_generic(dir, &dentry->d_name, mode, 0, dentry);
 824
 825         ll_d2d(dentry)->lld_it = NULL;
 826
 827         /* Was there an error? Propagate it! */
 828         if (it->d.lustre.it_status) {
 829                 rc = it->d.lustre.it_status;
 830                 goto out;
 831         }
 832
 833         rc = ll_create_it(dir, dentry, mode, it);
 834 #ifdef HAVE_FILE_IN_STRUCT_INTENT
 835         if (nd && (nd->flags & LOOKUP_OPEN) && dentry->d_inode) { /* Open */
 836                 nd->intent.open.file->private_data = it;
 837                 lookup_instantiate_filp(nd, dentry, NULL);
 838         }
 839 #else
 840         ll_release_openhandle(dentry,it);
 841 #endif
 842
 843 out:
 844         ll_intent_release(it);
 845         OBD_FREE(it, sizeof(*it));
 846
 847         return rc;
 848 }
 849 #else
 850 static int ll_create_nd(struct inode *dir, struct dentry *dentry,
 851                         int mode, struct nameidata *nd)
 852 {
 853         if (!nd || !nd->intent.d.lustre.it_disposition)
 854                 /* No saved request? Just mknod the file */
 855                 return ll_mknod_generic(dir, &dentry->d_name, mode, 0, dentry);
 856
 857         return ll_create_it(dir, dentry, mode, &nd->intent);
 858 }
 859 #endif
 860
 861 static int ll_symlink_generic(struct inode *dir, struct qstr *name,
 862                               const char *tgt, struct dentry *dchild)
 863 {
 864         int err;
 865         ENTRY;
 866
 867         CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),target=%.*s\n",
 868                name->len, name->name, dir->i_ino, dir->i_generation,
 869                dir, 3000, tgt);
 870
 871         err = ll_new_node(dir, name, (char *)tgt, S_IFLNK | S_IRWXUGO,
 872                           0, dchild, LUSTRE_OPC_SYMLINK);
 873         RETURN(err);
 874 }
 875
 876 static int ll_link_generic(struct inode *src,  struct inode *dir,
 877                            struct qstr *name, struct dentry *dchild)
 878 {
 879         struct ll_sb_info *sbi = ll_i2sbi(dir);
 880         struct ptlrpc_request *request = NULL;
 881         struct md_op_data *op_data;
 882         int err;
 883
 884         ENTRY;
 885         CDEBUG(D_VFSTRACE,
 886                "VFS Op: inode=%lu/%u(%p), dir=%lu/%u(%p), target=%.*s\n",
 887                src->i_ino, src->i_generation, src, dir->i_ino,
 888                dir->i_generation, dir, name->len, name->name);
 889
 890         op_data = ll_prep_md_op_data(NULL, src, dir, name->name, name->len,
 891                                      0, LUSTRE_OPC_ANY, NULL);
 892         if (IS_ERR(op_data))
 893                 RETURN(PTR_ERR(op_data));
 894
 895         err = md_link(sbi->ll_md_exp, op_data, &request);
 896         ll_finish_md_op_data(op_data);
 897         if (err)
 898                 GOTO(out, err);
 899         if (dchild)
 900                 d_drop(dchild);
 901
 902         ll_update_times(request, dir);
 903         EXIT;
 904 out:
 905         ptlrpc_req_finished(request);
 906         RETURN(err);
 907 }
 908
 909 static int ll_mkdir_generic(struct inode *dir, struct qstr *name,
 910                             int mode, struct dentry *dchild)
 911
 912 {
 913         int err;
 914         ENTRY;
 915
 916         CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
 917                name->len, name->name, dir->i_ino, dir->i_generation, dir);
 918
 919         mode = (mode & (S_IRWXUGO|S_ISVTX) & ~current->fs->umask) | S_IFDIR;
 920         err = ll_new_node(dir, name, NULL, mode, 0, dchild, LUSTRE_OPC_MKDIR);
 921
 922         RETURN(err);
 923 }
 924
 925 /* Try to find the child dentry by its name.
 926    If found, put the result fid into @fid. */
 927 static void ll_get_child_fid(struct inode * dir, struct qstr *name,
 928                              struct lu_fid *fid)
 929 {
 930         struct dentry *parent, *child;
 931
 932         parent = list_entry(dir->i_dentry.next, struct dentry, d_alias);
 933         child = d_lookup(parent, name);
 934         if (child) {
 935                 if (child->d_inode)
 936                         *fid = *ll_inode2fid(child->d_inode);
 937                 dput(child);
 938         }
 939 }
 940
 941 static int ll_rmdir_generic(struct inode *dir, struct dentry *dparent,
 942                             struct dentry *dchild, struct qstr *name)
 943 {
 944         struct ptlrpc_request *request = NULL;
 945         struct md_op_data *op_data;
 946         int rc;
 947         ENTRY;
 948
 949         CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
 950                name->len, name->name, dir->i_ino, dir->i_generation, dir);
 951
 952         if (unlikely(ll_d_mountpoint(dparent, dchild, name)))
 953                 RETURN(-EBUSY);
 954
 955         op_data = ll_prep_md_op_data(NULL, dir, NULL, name->name, name->len,
 956                                      S_IFDIR, LUSTRE_OPC_ANY, NULL);
 957         if (IS_ERR(op_data))
 958                 RETURN(PTR_ERR(op_data));
 959
 960         ll_get_child_fid(dir, name, &op_data->op_fid3);
 961         rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
 962         ll_finish_md_op_data(op_data);
 963         if (rc == 0)
 964                 ll_update_times(request, dir);
 965         ptlrpc_req_finished(request);
 966         RETURN(rc);
 967 }
 968
 969 int ll_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
 970 {
 971         struct mdt_body *body;
 972         struct lov_mds_md *eadata;
 973         struct lov_stripe_md *lsm = NULL;
 974         struct obd_trans_info oti = { 0 };
 975         struct obdo *oa;
 976         int rc;
 977         ENTRY;
 978
 979         /* req is swabbed so this is safe */
 980         body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY);
 981         if (!(body->valid & OBD_MD_FLEASIZE))
 982                 RETURN(0);
 983
 984         if (body->eadatasize == 0) {
 985                 CERROR("OBD_MD_FLEASIZE set but eadatasize zero\n");
 986                 GOTO(out, rc = -EPROTO);
 987         }
 988
 989         /* The MDS sent back the EA because we unlinked the last reference
 990          * to this file. Use this EA to unlink the objects on the OST.
 991          * It's opaque so we don't swab here; we leave it to obd_unpackmd() to
 992          * check it is complete and sensible. */
 993         eadata = req_capsule_server_sized_get(&request->rq_pill, &RMF_MDT_MD,
 994                                               body->eadatasize);
 995         LASSERT(eadata != NULL);
 996
 997         rc = obd_unpackmd(ll_i2dtexp(dir), &lsm, eadata, body->eadatasize);
 998         if (rc < 0) {
 999                 CERROR("obd_unpackmd: %d\n", rc);
1000                 GOTO(out, rc);
1001         }
1002         LASSERT(rc >= sizeof(*lsm));
1003
1004         rc = obd_checkmd(ll_i2dtexp(dir), ll_i2mdexp(dir), lsm);
1005         if (rc)
1006                 GOTO(out_free_memmd, rc);
1007
1008         OBDO_ALLOC(oa);
1009         if (oa == NULL)
1010                 GOTO(out_free_memmd, rc = -ENOMEM);
1011
1012         oa->o_id = lsm->lsm_object_id;
1013         oa->o_gr = lsm->lsm_object_gr;
1014         oa->o_mode = body->mode & S_IFMT;
1015         oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | OBD_MD_FLGROUP;
1016
1017         if (body->valid & OBD_MD_FLCOOKIE) {
1018                 oa->o_valid |= OBD_MD_FLCOOKIE;
1019                 oti.oti_logcookies =
1020                         req_capsule_server_sized_get(&request->rq_pill,
1021                                                      &RMF_LOGCOOKIES,
1022                                                    sizeof(struct llog_cookie) *
1023                                                      lsm->lsm_stripe_count);
1024                 if (oti.oti_logcookies == NULL) {
1025                         oa->o_valid &= ~OBD_MD_FLCOOKIE;
1026                         body->valid &= ~OBD_MD_FLCOOKIE;
1027                 }
1028         }
1029
1030         rc = obd_destroy(ll_i2dtexp(dir), oa, lsm, &oti, ll_i2mdexp(dir));
1031         OBDO_FREE(oa);
1032         if (rc)
1033                 CERROR("obd destroy objid "LPX64" error %d\n",
1034                        lsm->lsm_object_id, rc);
1035  out_free_memmd:
1036         obd_free_memmd(ll_i2dtexp(dir), &lsm);
1037  out:
1038         return rc;
1039 }
1040
1041 static int ll_unlink_generic(struct inode *dir, struct dentry *dparent,
1042                              struct dentry *dchild, struct qstr *name)
1043 {
1044         struct ptlrpc_request *request = NULL;
1045         struct md_op_data *op_data;
1046         int rc;
1047         ENTRY;
1048         CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
1049                name->len, name->name, dir->i_ino, dir->i_generation, dir);
1050
1051         /*
1052          * XXX: unlink bind mountpoint maybe call to here,
1053          * just check it as vfs_unlink does.
1054          */
1055         if (unlikely(ll_d_mountpoint(dparent, dchild, name)))
1056                 RETURN(-EBUSY);
1057
1058         op_data = ll_prep_md_op_data(NULL, dir, NULL, name->name,
1059                                      name->len, 0, LUSTRE_OPC_ANY, NULL);
1060         if (IS_ERR(op_data))
1061                 RETURN(PTR_ERR(op_data));
1062
1063         ll_get_child_fid(dir, name, &op_data->op_fid3);
1064         rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
1065         ll_finish_md_op_data(op_data);
1066         if (rc)
1067                 GOTO(out, rc);
1068
1069         ll_update_times(request, dir);
1070
1071         rc = ll_objects_destroy(request, dir);
1072  out:
1073         ptlrpc_req_finished(request);
1074         RETURN(rc);
1075 }
1076
1077 static int ll_rename_generic(struct inode *src, struct dentry *src_dparent,
1078                              struct dentry *src_dchild, struct qstr *src_name,
1079                              struct inode *tgt, struct dentry *tgt_dparent,
1080                              struct dentry *tgt_dchild, struct qstr *tgt_name)
1081 {
1082         struct ptlrpc_request *request = NULL;
1083         struct ll_sb_info *sbi = ll_i2sbi(src);
1084         struct md_op_data *op_data;
1085         int err;
1086         ENTRY;
1087         CDEBUG(D_VFSTRACE,"VFS Op:oldname=%.*s,src_dir=%lu/%u(%p),newname=%.*s,"
1088                "tgt_dir=%lu/%u(%p)\n", src_name->len, src_name->name,
1089                src->i_ino, src->i_generation, src, tgt_name->len,
1090                tgt_name->name, tgt->i_ino, tgt->i_generation, tgt);
1091
1092         if (unlikely(ll_d_mountpoint(src_dparent, src_dchild, src_name) ||
1093             ll_d_mountpoint(tgt_dparent, tgt_dchild, tgt_name)))
1094                 RETURN(-EBUSY);
1095
1096         op_data = ll_prep_md_op_data(NULL, src, tgt, NULL, 0, 0,
1097                                      LUSTRE_OPC_ANY, NULL);
1098         if (IS_ERR(op_data))
1099                 RETURN(PTR_ERR(op_data));
1100
1101         ll_get_child_fid(src, src_name, &op_data->op_fid3);
1102         ll_get_child_fid(tgt, tgt_name, &op_data->op_fid4);
1103         err = md_rename(sbi->ll_md_exp, op_data,
1104                         src_name->name, src_name->len,
1105                         tgt_name->name, tgt_name->len, &request);
1106         ll_finish_md_op_data(op_data);
1107         if (!err) {
1108                 ll_update_times(request, src);
1109                 ll_update_times(request, tgt);
1110                 err = ll_objects_destroy(request, src);
1111         }
1112
1113         ptlrpc_req_finished(request);
1114
1115         RETURN(err);
1116 }
1117
1118 #ifdef HAVE_VFS_INTENT_PATCHES
1119 static int ll_mknod_raw(struct nameidata *nd, int mode, dev_t rdev)
1120 {
1121         return ll_mknod_generic(nd->dentry->d_inode, &nd->last, mode,rdev,NULL);
1122 }
1123 static int ll_rename_raw(struct nameidata *srcnd, struct nameidata *tgtnd)
1124 {
1125         return ll_rename_generic(srcnd->dentry->d_inode, srcnd->dentry,
1126                                  NULL, &srcnd->last,
1127                                  tgtnd->dentry->d_inode, tgtnd->dentry,
1128                                  NULL, &tgtnd->last);
1129 }
1130 static int ll_link_raw(struct nameidata *srcnd, struct nameidata *tgtnd)
1131 {
1132         return ll_link_generic(srcnd->dentry->d_inode, tgtnd->dentry->d_inode,
1133                                &tgtnd->last, NULL);
1134 }
1135 static int ll_symlink_raw(struct nameidata *nd, const char *tgt)
1136 {
1137         return ll_symlink_generic(nd->dentry->d_inode, &nd->last, tgt, NULL);
1138 }
1139 static int ll_rmdir_raw(struct nameidata *nd)
1140 {
1141         return ll_rmdir_generic(nd->dentry->d_inode, nd->dentry, NULL,
1142                                 &nd->last);
1143 }
1144 static int ll_mkdir_raw(struct nameidata *nd, int mode)
1145 {
1146         return ll_mkdir_generic(nd->dentry->d_inode, &nd->last, mode, NULL);
1147 }
1148 static int ll_unlink_raw(struct nameidata *nd)
1149 {
1150         return ll_unlink_generic(nd->dentry->d_inode, nd->dentry, NULL,
1151                                  &nd->last);
1152 }
1153 #endif
1154
1155 static int ll_mknod(struct inode *dir, struct dentry *dchild, int mode,
1156                     ll_dev_t rdev)
1157 {
1158         return ll_mknod_generic(dir, &dchild->d_name, mode,
1159                                 old_encode_dev(rdev), dchild);
1160 }
1161
1162 static int ll_unlink(struct inode * dir, struct dentry *dentry)
1163 {
1164         return ll_unlink_generic(dir, NULL, dentry, &dentry->d_name);
1165 }
1166 static int ll_mkdir(struct inode *dir, struct dentry *dentry, int mode)
1167 {
1168         return ll_mkdir_generic(dir, &dentry->d_name, mode, dentry);
1169 }
1170 static int ll_rmdir(struct inode *dir, struct dentry *dentry)
1171 {
1172         return ll_rmdir_generic(dir, NULL, dentry, &dentry->d_name);
1173 }
1174 static int ll_symlink(struct inode *dir, struct dentry *dentry,
1175                       const char *oldname)
1176 {
1177         return ll_symlink_generic(dir, &dentry->d_name, oldname, dentry);
1178 }
1179 static int ll_link(struct dentry *old_dentry, struct inode *dir,
1180                    struct dentry *new_dentry)
1181 {
1182         return ll_link_generic(old_dentry->d_inode, dir, &new_dentry->d_name,
1183                                new_dentry);
1184 }
1185 static int ll_rename(struct inode *old_dir, struct dentry *old_dentry,
1186                      struct inode *new_dir, struct dentry *new_dentry)
1187 {
1188         return ll_rename_generic(old_dir, NULL,
1189                                  old_dentry, &old_dentry->d_name,
1190                                  new_dir, NULL, new_dentry,
1191                                  &new_dentry->d_name);
1192 }
1193
1194 struct inode_operations ll_dir_inode_operations = {
1195 #ifdef HAVE_VFS_INTENT_PATCHES
1196         .link_raw           = ll_link_raw,
1197         .unlink_raw         = ll_unlink_raw,
1198         .symlink_raw        = ll_symlink_raw,
1199         .mkdir_raw          = ll_mkdir_raw,
1200         .rmdir_raw          = ll_rmdir_raw,
1201         .mknod_raw          = ll_mknod_raw,
1202         .rename_raw         = ll_rename_raw,
1203         .setattr            = ll_setattr,
1204         .setattr_raw        = ll_setattr_raw,
1205 #endif
1206         .mknod              = ll_mknod,
1207         .lookup             = ll_lookup_nd,
1208         .create             = ll_create_nd,
1209         /* We need all these non-raw things for NFSD, to not patch it. */
1210         .unlink             = ll_unlink,
1211         .mkdir              = ll_mkdir,
1212         .rmdir              = ll_rmdir,
1213         .symlink            = ll_symlink,
1214         .link               = ll_link,
1215         .rename             = ll_rename,
1216         .setattr            = ll_setattr,
1217         .getattr            = ll_getattr,
1218         .permission         = ll_inode_permission,
1219         .setxattr           = ll_setxattr,
1220         .getxattr           = ll_getxattr,
1221         .listxattr          = ll_listxattr,
1222         .removexattr        = ll_removexattr,
1223 };
1224
1225 struct inode_operations ll_special_inode_operations = {
1226 #ifdef HAVE_VFS_INTENT_PATCHES
1227         .setattr_raw    = ll_setattr_raw,
1228 #endif
1229         .setattr        = ll_setattr,
1230         .getattr        = ll_getattr,
1231         .permission     = ll_inode_permission,
1232         .setxattr       = ll_setxattr,
1233         .getxattr       = ll_getxattr,
1234         .listxattr      = ll_listxattr,
1235         .removexattr    = ll_removexattr,
1236 };