ldiskfs/kernel_patches/patches/sles12sp3/ext4-large-eas.patch

   1 This patch implements the large EA support in ext4. If the size of
   2 an EA value is larger than the blocksize, then the EA value would
   3 not be saved in the external EA block, instead it would be saved
   4 in an external EA inode. So, the patch also helps support a larger
   5 number of EAs.
   6
   7 Index: linux-stage/fs/ext4/ext4.h
   8 ===================================================================
   9 --- linux-stage.orig/fs/ext4/ext4.h
  10 +++ linux-stage/fs/ext4/ext4.h
  11 @@ -1579,6 +1579,7 @@ static inline void ext4_clear_state_flag
  12                                          EXT4_FEATURE_INCOMPAT_EXTENTS| \
  13                                          EXT4_FEATURE_INCOMPAT_64BIT| \
  14                                          EXT4_FEATURE_INCOMPAT_FLEX_BG| \
  15 +                                        EXT4_FEATURE_INCOMPAT_EA_INODE| \
  16                                          EXT4_FEATURE_INCOMPAT_MMP | \
  17                                          EXT4_FEATURE_INCOMPAT_DIRDATA| \
  18                                          EXT4_FEATURE_INCOMPAT_INLINE_DATA)
  19 @@ -1990,6 +1997,10 @@ struct mmpd_data {
  20  # define ATTRIB_NORET  __attribute__((noreturn))
  21  # define NORET_AND     noreturn,
  22
  23 +struct ext4_xattr_ino_array {
  24 +       unsigned int xia_count;         /* # of used item in the array */
  25 +       unsigned int xia_inodes[0];
  26 +};
  27  /* bitmap.c */
  28  extern unsigned int ext4_count_free(char *bitmap, unsigned numchars);
  29  void ext4_inode_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
  30 @@ -2194,6 +2205,7 @@ extern void ext4_set_inode_flags(struct
  31  extern void ext4_get_inode_flags(struct ext4_inode_info *);
  32  extern int ext4_alloc_da_blocks(struct inode *inode);
  33  extern void ext4_set_aops(struct inode *inode);
  34 +extern int ext4_meta_trans_blocks(struct inode *, int nrblocks, int chunk);
  35  extern int ext4_writepage_trans_blocks(struct inode *);
  36  extern int ext4_chunk_trans_blocks(struct inode *, int nrblocks);
  37  extern int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,
  38 Index: linux-stage/fs/ext4/inode.c
  39 ===================================================================
  40 --- linux-stage.orig/fs/ext4/inode.c
  41 +++ linux-stage/fs/ext4/inode.c
  42 @@ -134,8 +134,6 @@ static void ext4_invalidatepage(struct p
  43                                 unsigned int length);
  44  static int __ext4_journalled_writepage(struct page *page, unsigned int len);
  45  static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh);
  46 -static int ext4_meta_trans_blocks(struct inode *inode, int lblocks,
  47 -                                 int pextents);
  48
  49  /*
  50   * Test whether an inode is a fast symlink.
  51 @@ -184,6 +182,8 @@ void ext4_evict_inode(struct inode *inod
  52  {
  53         handle_t *handle;
  54         int err;
  55 +       int extra_credits = 3;
  56 +       struct ext4_xattr_ino_array *lea_ino_array = NULL;
  57
  58         trace_ext4_evict_inode(inode);
  59
  60 @@ -236,8 +236,8 @@ void ext4_evict_inode(struct inode *inod
  61          * protection against it
  62          */
  63         sb_start_intwrite(inode->i_sb);
  64 -       handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE,
  65 -                                   ext4_blocks_for_truncate(inode)+3);
  66 +
  67 +       handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, extra_credits);
  68         if (IS_ERR(handle)) {
  69                 ext4_std_error(inode->i_sb, PTR_ERR(handle));
  70                 /*
  71 @@ -249,9 +249,36 @@ void ext4_evict_inode(struct inode *inod
  72                 sb_end_intwrite(inode->i_sb);
  73                 goto no_delete;
  74         }
  75 -
  76         if (IS_SYNC(inode))
  77                 ext4_handle_sync(handle);
  78 +
  79 +       /*
  80 +        * Delete xattr inode before deleting the main inode.
  81 +        */
  82 +       err = ext4_xattr_delete_inode(handle, inode, &lea_ino_array);
  83 +       if (err) {
  84 +               ext4_warning(inode->i_sb,
  85 +                            "couldn't delete inode's xattr (err %d)", err);
  86 +               goto stop_handle;
  87 +       }
  88 +
  89 +       if (!IS_NOQUOTA(inode))
  90 +               extra_credits += 2 * EXT4_QUOTA_DEL_BLOCKS(inode->i_sb);
  91 +
  92 +       if (!ext4_handle_has_enough_credits(handle,
  93 +                       ext4_blocks_for_truncate(inode) + extra_credits)) {
  94 +               err = ext4_journal_extend(handle,
  95 +                       ext4_blocks_for_truncate(inode) + extra_credits);
  96 +               if (err > 0)
  97 +                       err = ext4_journal_restart(handle,
  98 +                       ext4_blocks_for_truncate(inode) + extra_credits);
  99 +               if (err != 0) {
 100 +                       ext4_warning(inode->i_sb,
 101 +                                    "couldn't extend journal (err %d)", err);
 102 +                       goto stop_handle;
 103 +               }
 104 +       }
 105 +
 106         inode->i_size = 0;
 107         err = ext4_mark_inode_dirty(handle, inode);
 108         if (err) {
 109 @@ -269,10 +296,10 @@ void ext4_evict_inode(struct inode *inod
 110          * enough credits left in the handle to remove the inode from
 111          * the orphan list and set the dtime field.
 112          */
 113 -       if (!ext4_handle_has_enough_credits(handle, 3)) {
 114 -               err = ext4_journal_extend(handle, 3);
 115 +       if (!ext4_handle_has_enough_credits(handle, extra_credits)) {
 116 +               err = ext4_journal_extend(handle, extra_credits);
 117                 if (err > 0)
 118 -                       err = ext4_journal_restart(handle, 3);
 119 +                       err = ext4_journal_restart(handle, extra_credits);
 120                 if (err != 0) {
 121                         ext4_warning(inode->i_sb,
 122                                      "couldn't extend journal (err %d)", err);
 123 @@ -306,8 +333,12 @@ void ext4_evict_inode(struct inode *inod
 124                 ext4_clear_inode(inode);
 125         else
 126                 ext4_free_inode(handle, inode);
 127 +
 128         ext4_journal_stop(handle);
 129         sb_end_intwrite(inode->i_sb);
 130 +
 131 +       if (lea_ino_array != NULL)
 132 +               ext4_xattr_inode_array_free(inode, lea_ino_array);
 133         return;
 134  no_delete:
 135         ext4_clear_inode(inode);        /* We must guarantee clearing of inode... */
 136 @@ -4681,7 +4712,7 @@ static int ext4_index_trans_blocks(struc
 137   *
 138   * Also account for superblock, inode, quota and xattr blocks
 139   */
 140 -static int ext4_meta_trans_blocks(struct inode *inode, int lblocks,
 141 +int ext4_meta_trans_blocks(struct inode *inode, int lblocks,
 142                                   int pextents)
 143  {
 144         ext4_group_t groups, ngroups = ext4_get_groups_count(inode->i_sb);
 145 Index: linux-stage/fs/ext4/xattr.c
 146 ===================================================================
 147 --- linux-stage.orig/fs/ext4/xattr.c
 148 +++ linux-stage/fs/ext4/xattr.c
 149 @@ -204,6 +204,7 @@ ext4_xattr_check_names(struct ext4_xattr
 150
 151         while (!IS_LAST_ENTRY(entry)) {
 152                 if (entry->e_value_size != 0 &&
 153 +                   entry->e_value_inum == 0 &&
 154                     (value_start + le16_to_cpu(entry->e_value_offs) <
 155                      (void *)e + sizeof(__u32) ||
 156                      value_start + le16_to_cpu(entry->e_value_offs) +
 157 @@ -257,19 +258,26 @@ errout:
 158         __xattr_check_inode((inode), (header), (end), __func__, __LINE__)
 159
 160  static inline int
 161 -ext4_xattr_check_entry(struct ext4_xattr_entry *entry, size_t size)
 162 +ext4_xattr_check_entry(struct ext4_xattr_entry *entry, size_t size,
 163 +                      struct inode *inode)
 164  {
 165         size_t value_size = le32_to_cpu(entry->e_value_size);
 166
 167 -       if (entry->e_value_block != 0 || value_size > size ||
 168 +       if (!entry->e_value_inum &&
 169             le16_to_cpu(entry->e_value_offs) + value_size > size)
 170                 return -EFSCORRUPTED;
 171 +       if (entry->e_value_inum &&
 172 +           (le32_to_cpu(entry->e_value_inum) < EXT4_FIRST_INO(inode->i_sb) ||
 173 +            le32_to_cpu(entry->e_value_inum) >
 174 +            le32_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_inodes_count)))
 175 +               return -EFSCORRUPTED;
 176         return 0;
 177  }
 178
 179  static int
 180  ext4_xattr_find_entry(struct ext4_xattr_entry **pentry, int name_index,
 181 -                     const char *name, size_t size, int sorted)
 182 +                     const char *name, size_t size, int sorted,
 183 +                     struct inode *inode)
 184  {
 185         struct ext4_xattr_entry *entry;
 186         size_t name_len;
 187 @@ -289,11 +297,104 @@ ext4_xattr_find_entry(struct ext4_xattr_
 188                         break;
 189         }
 190         *pentry = entry;
 191 -       if (!cmp && ext4_xattr_check_entry(entry, size))
 192 +       if (!cmp && ext4_xattr_check_entry(entry, size, inode))
 193                 return -EFSCORRUPTED;
 194         return cmp ? -ENODATA : 0;
 195  }
 196
 197 +/*
 198 + * Read the EA value from an inode.
 199 + */
 200 +static int
 201 +ext4_xattr_inode_read(struct inode *ea_inode, void *buf, size_t *size)
 202 +{
 203 +       unsigned long block = 0;
 204 +       struct buffer_head *bh = NULL;
 205 +       int blocksize;
 206 +       size_t csize, ret_size = 0;
 207 +
 208 +       if (*size == 0)
 209 +               return 0;
 210 +
 211 +       blocksize = ea_inode->i_sb->s_blocksize;
 212 +
 213 +       while (ret_size < *size) {
 214 +               csize = (*size - ret_size) > blocksize ? blocksize :
 215 +                                                       *size - ret_size;
 216 +               bh = ext4_bread(NULL, ea_inode, block, 0);
 217 +               if (IS_ERR(bh)) {
 218 +                       *size = ret_size;
 219 +                       return PTR_ERR(bh);
 220 +               }
 221 +               memcpy(buf, bh->b_data, csize);
 222 +               brelse(bh);
 223 +
 224 +               buf += csize;
 225 +               block += 1;
 226 +               ret_size += csize;
 227 +       }
 228 +
 229 +       *size = ret_size;
 230 +
 231 +       return 0;
 232 +}
 233 +
 234 +struct inode *ext4_xattr_inode_iget(struct inode *parent, unsigned long ea_ino, int *err)
 235 +{
 236 +       struct inode *ea_inode = NULL;
 237 +
 238 +       ea_inode = ext4_iget(parent->i_sb, ea_ino);
 239 +       if (IS_ERR(ea_inode) || is_bad_inode(ea_inode)) {
 240 +               int rc = IS_ERR(ea_inode) ? PTR_ERR(ea_inode) : 0;
 241 +               ext4_error(parent->i_sb, "error while reading EA inode %lu "
 242 +                          "/ %d %d", ea_ino, rc, is_bad_inode(ea_inode));
 243 +               *err = rc != 0 ? rc : -EIO;
 244 +               return NULL;
 245 +       }
 246 +
 247 +       if (EXT4_XATTR_INODE_GET_PARENT(ea_inode) != parent->i_ino ||
 248 +           ea_inode->i_generation != parent->i_generation) {
 249 +               ext4_error(parent->i_sb, "Backpointer from EA inode %lu "
 250 +                          "to parent invalid.", ea_ino);
 251 +               *err = -EINVAL;
 252 +               goto error;
 253 +       }
 254 +
 255 +       if (!(EXT4_I(ea_inode)->i_flags & EXT4_EA_INODE_FL)) {
 256 +               ext4_error(parent->i_sb, "EA inode %lu does not have "
 257 +                          "EXT4_EA_INODE_FL flag set.\n", ea_ino);
 258 +               *err = -EINVAL;
 259 +               goto error;
 260 +       }
 261 +
 262 +       *err = 0;
 263 +       return ea_inode;
 264 +
 265 +error:
 266 +       iput(ea_inode);
 267 +       return NULL;
 268 +}
 269 +
 270 +/*
 271 + * Read the value from the EA inode.
 272 + */
 273 +static int
 274 +ext4_xattr_inode_get(struct inode *inode, unsigned long ea_ino, void *buffer,
 275 +                    size_t *size)
 276 +{
 277 +       struct inode *ea_inode = NULL;
 278 +       int err;
 279 +
 280 +       ea_inode = ext4_xattr_inode_iget(inode, ea_ino, &err);
 281 +       if (err)
 282 +               return err;
 283 +
 284 +       err = ext4_xattr_inode_read(ea_inode, buffer, size);
 285 +       iput(ea_inode);
 286 +
 287 +       return err;
 288 +}
 289 +
 290  static int
 291  ext4_xattr_block_get(struct inode *inode, int name_index, const char *name,
 292                      void *buffer, size_t buffer_size)
 293 @@ -326,7 +427,8 @@ bad_block:
 294         }
 295         ext4_xattr_cache_insert(ext4_mb_cache, bh);
 296         entry = BFIRST(bh);
 297 -       error = ext4_xattr_find_entry(&entry, name_index, name, bh->b_size, 1);
 298 +       error = ext4_xattr_find_entry(&entry, name_index, name, bh->b_size, 1,
 299 +                                     inode);
 300         if (error == -EFSCORRUPTED)
 301                 goto bad_block;
 302         if (error)
 303 @@ -336,8 +438,16 @@ bad_block:
 304                 error = -ERANGE;
 305                 if (size > buffer_size)
 306                         goto cleanup;
 307 -               memcpy(buffer, bh->b_data + le16_to_cpu(entry->e_value_offs),
 308 -                      size);
 309 +               if (entry->e_value_inum) {
 310 +                       error = ext4_xattr_inode_get(inode,
 311 +                                            le32_to_cpu(entry->e_value_inum),
 312 +                                            buffer, &size);
 313 +                       if (error)
 314 +                               goto cleanup;
 315 +               } else {
 316 +                       memcpy(buffer, bh->b_data +
 317 +                              le16_to_cpu(entry->e_value_offs), size);
 318 +               }
 319         }
 320         error = size;
 321
 322 @@ -371,7 +481,7 @@ ext4_xattr_ibody_get(struct inode *inode
 323         if (error)
 324                 goto cleanup;
 325         error = ext4_xattr_find_entry(&entry, name_index, name,
 326 -                                     end - (void *)entry, 0);
 327 +                                     end - (void *)entry, 0, inode);
 328         if (error)
 329                 goto cleanup;
 330         size = le32_to_cpu(entry->e_value_size);
 331 @@ -379,8 +489,16 @@ ext4_xattr_ibody_get(struct inode *inode
 332                 error = -ERANGE;
 333                 if (size > buffer_size)
 334                         goto cleanup;
 335 -               memcpy(buffer, (void *)IFIRST(header) +
 336 -                      le16_to_cpu(entry->e_value_offs), size);
 337 +               if (entry->e_value_inum) {
 338 +                       error = ext4_xattr_inode_get(inode,
 339 +                                            le32_to_cpu(entry->e_value_inum),
 340 +                                            buffer, &size);
 341 +                       if (error)
 342 +                               goto cleanup;
 343 +               } else {
 344 +                       memcpy(buffer, (void *)IFIRST(header) +
 345 +                              le16_to_cpu(entry->e_value_offs), size);
 346 +               }
 347         }
 348         error = size;
 349
 350 @@ -640,7 +758,7 @@ static size_t ext4_xattr_free_space(stru
 351                                     size_t *min_offs, void *base, int *total)
 352  {
 353         for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) {
 354 -               if (!last->e_value_block && last->e_value_size) {
 355 +               if (!last->e_value_inum && last->e_value_size) {
 356                         size_t offs = le16_to_cpu(last->e_value_offs);
 357                         if (offs < *min_offs)
 358                                 *min_offs = offs;
 359 @@ -651,11 +769,195 @@ static size_t ext4_xattr_free_space(stru
 360         return (*min_offs - ((void *)last - base) - sizeof(__u32));
 361  }
 362
 363 +/*
 364 + * Write the value of the EA in an inode.
 365 + */
 366 +static int
 367 +ext4_xattr_inode_write(handle_t *handle, struct inode *ea_inode,
 368 +                      const void *buf, int bufsize)
 369 +{
 370 +       struct buffer_head *bh = NULL;
 371 +       unsigned long block = 0;
 372 +       unsigned blocksize = ea_inode->i_sb->s_blocksize;
 373 +       unsigned max_blocks = (bufsize + blocksize - 1) >> ea_inode->i_blkbits;
 374 +       int csize, wsize = 0;
 375 +       int ret = 0;
 376 +       int retries = 0;
 377 +
 378 +retry:
 379 +       while (ret >= 0 && ret < max_blocks) {
 380 +               struct ext4_map_blocks map;
 381 +               map.m_lblk = block += ret;
 382 +               map.m_len = max_blocks -= ret;
 383 +
 384 +               ret = ext4_map_blocks(handle, ea_inode, &map,
 385 +                                     EXT4_GET_BLOCKS_CREATE);
 386 +               if (ret <= 0) {
 387 +                       ext4_mark_inode_dirty(handle, ea_inode);
 388 +                       if (ret == -ENOSPC &&
 389 +                           ext4_should_retry_alloc(ea_inode->i_sb, &retries)) {
 390 +                               ret = 0;
 391 +                               goto retry;
 392 +                       }
 393 +                       break;
 394 +               }
 395 +       }
 396 +
 397 +       if (ret < 0)
 398 +               return ret;
 399 +
 400 +       block = 0;
 401 +       while (wsize < bufsize) {
 402 +               if (bh != NULL)
 403 +                       brelse(bh);
 404 +               csize = (bufsize - wsize) > blocksize ? blocksize :
 405 +                                                               bufsize - wsize;
 406 +               bh = ext4_getblk(handle, ea_inode, block, 0);
 407 +               if (IS_ERR(bh)) {
 408 +                       ret = PTR_ERR(bh);
 409 +                       goto out;
 410 +               }
 411 +               ret = ext4_journal_get_write_access(handle, bh);
 412 +               if (ret)
 413 +                       goto out;
 414 +
 415 +               memcpy(bh->b_data, buf, csize);
 416 +               set_buffer_uptodate(bh);
 417 +               ext4_handle_dirty_metadata(handle, ea_inode, bh);
 418 +
 419 +               buf += csize;
 420 +               wsize += csize;
 421 +               block += 1;
 422 +       }
 423 +
 424 +       mutex_lock(&ea_inode->i_mutex);
 425 +       i_size_write(ea_inode, wsize);
 426 +       ext4_update_i_disksize(ea_inode, wsize);
 427 +       mutex_unlock(&ea_inode->i_mutex);
 428 +
 429 +       ext4_mark_inode_dirty(handle, ea_inode);
 430 +
 431 +out:
 432 +       brelse(bh);
 433 +
 434 +       return ret;
 435 +}
 436 +
 437 +static void ext4_xattr_inode_set_ref(struct inode *ea_inode, __u64 ref_count)
 438 +{
 439 +       ea_inode->i_ctime.tv_sec = (__u32)(ref_count >> 32);
 440 +       ea_inode->i_version = (__u32)ref_count;
 441 +}
 442 +
 443 +static void ext4_xattr_inode_set_hash(struct inode *ea_inode, __u32 hash)
 444 +{
 445 +       ea_inode->i_atime.tv_sec = hash;
 446 +}
 447 +
 448 +/*
 449 + * Create an inode to store the value of a large EA.
 450 + */
 451 +static struct inode *
 452 +ext4_xattr_inode_create(handle_t *handle, struct inode *inode, __u32 hash)
 453 +{
 454 +       struct inode *ea_inode = NULL;
 455 +
 456 +       /*
 457 +        * Let the next inode be the goal, so we try and allocate the EA inode
 458 +        * in the same group, or nearby one.
 459 +        */
 460 +       ea_inode = ext4_new_inode(handle, inode->i_sb->s_root->d_inode,
 461 +                                 S_IFREG|0600, NULL, inode->i_ino + 1, NULL);
 462 +
 463 +       if (!IS_ERR(ea_inode)) {
 464 +               ea_inode->i_op = &ext4_file_inode_operations;
 465 +               ea_inode->i_fop = &ext4_file_operations;
 466 +               ext4_set_aops(ea_inode);
 467 +               ea_inode->i_generation = inode->i_generation;
 468 +               EXT4_I(ea_inode)->i_flags |= EXT4_EA_INODE_FL;
 469 +
 470 +               /*
 471 +                * A back-pointer from EA inode to parent inode will be useful
 472 +                * for e2fsck.
 473 +                */
 474 +               EXT4_XATTR_INODE_SET_PARENT(ea_inode, inode->i_ino);
 475 +               unlock_new_inode(ea_inode);
 476 +
 477 +               ext4_xattr_inode_set_ref(ea_inode, 1);
 478 +               ext4_xattr_inode_set_hash(ea_inode, hash);
 479 +       }
 480 +
 481 +       return ea_inode;
 482 +}
 483 +
 484 +/*
 485 + * Unlink the inode storing the value of the EA.
 486 + */
 487 +int
 488 +ext4_xattr_inode_unlink(struct inode *inode, unsigned long ea_ino)
 489 +{
 490 +       struct inode *ea_inode = NULL;
 491 +       int err;
 492 +
 493 +       ea_inode = ext4_xattr_inode_iget(inode, ea_ino, &err);
 494 +       if (err)
 495 +               return err;
 496 +
 497 +       clear_nlink(ea_inode);
 498 +       iput(ea_inode);
 499 +
 500 +       return 0;
 501 +}
 502 +
 503 +static __u32
 504 +ext4_xattr_inode_hash(struct ext4_sb_info *sbi, const void *buffer, size_t size)
 505 +{
 506 +       if (ext4_has_metadata_csum(sbi->s_sb))
 507 +               return ext4_chksum(sbi, sbi->s_csum_seed, buffer, size);
 508 +       return 0;
 509 +}
 510 +
 511 +/*
 512 + * Add value of the EA in an inode.
 513 + */
 514 +static int
 515 +ext4_xattr_inode_set(handle_t *handle, struct inode *inode, unsigned long *ea_ino,
 516 +                    const void *value, size_t value_len)
 517 +{
 518 +       struct inode *ea_inode = NULL;
 519 +       __u32 hash;
 520 +       int err;
 521 +
 522 +       /* Create an inode for the EA value */
 523 +       hash = ext4_xattr_inode_hash(EXT4_SB(inode->i_sb), value, value_len);
 524 +       ea_inode = ext4_xattr_inode_create(handle, inode, hash);
 525 +       if (IS_ERR(ea_inode))
 526 +               return -1;
 527 +
 528 +       err = ext4_xattr_inode_write(handle, ea_inode, value, value_len);
 529 +       if (err)
 530 +               clear_nlink(ea_inode);
 531 +       else
 532 +               *ea_ino = ea_inode->i_ino;
 533 +
 534 +       iput(ea_inode);
 535 +
 536 +       return err;
 537 +}
 538 +
 539  static int
 540 -ext4_xattr_set_entry(struct ext4_xattr_info *i, struct ext4_xattr_search *s)
 541 +ext4_xattr_set_entry(struct ext4_xattr_info *i, struct ext4_xattr_search *s,
 542 +                    handle_t *handle, struct inode *inode)
 543  {
 544         struct ext4_xattr_entry *last, *next;
 545         size_t free, min_offs = s->end - s->base, name_len = strlen(i->name);
 546 +       int in_inode = i->in_inode;
 547 +
 548 +       if (EXT4_HAS_INCOMPAT_FEATURE(inode->i_sb,
 549 +                EXT4_FEATURE_INCOMPAT_EA_INODE) &&
 550 +           (EXT4_XATTR_SIZE(i->value_len) >
 551 +            EXT4_XATTR_MIN_LARGE_EA_SIZE(inode->i_sb->s_blocksize)))
 552 +               in_inode = 1;
 553
 554         /* Compute min_offs and last. */
 555         last = s->first;
 556 @@ -663,7 +965,7 @@ ext4_xattr_set_entry(struct ext4_xattr_i
 557                 next = EXT4_XATTR_NEXT(last);
 558                 if ((void *)next >= s->end)
 559                         return -EFSCORRUPTED;
 560 -               if (!last->e_value_block && last->e_value_size) {
 561 +               if (!last->e_value_inum && last->e_value_size) {
 562                         size_t offs = le16_to_cpu(last->e_value_offs);
 563                         if (offs < min_offs)
 564                                 min_offs = offs;
 565 @@ -671,15 +973,20 @@ ext4_xattr_set_entry(struct ext4_xattr_i
 566         }
 567         free = min_offs - ((void *)last - s->base) - sizeof(__u32);
 568         if (!s->not_found) {
 569 -               if (!s->here->e_value_block && s->here->e_value_size) {
 570 +               if (!in_inode &&
 571 +                   !s->here->e_value_inum && s->here->e_value_size) {
 572                         size_t size = le32_to_cpu(s->here->e_value_size);
 573                         free += EXT4_XATTR_SIZE(size);
 574                 }
 575                 free += EXT4_XATTR_LEN(name_len);
 576         }
 577         if (i->value) {
 578 -               if (free < EXT4_XATTR_LEN(name_len) +
 579 -                          EXT4_XATTR_SIZE(i->value_len))
 580 +               size_t value_len = EXT4_XATTR_SIZE(i->value_len);
 581 +
 582 +               if (in_inode)
 583 +                       value_len = 0;
 584 +
 585 +               if (free < EXT4_XATTR_LEN(name_len) + value_len)
 586                         return -ENOSPC;
 587         }
 588
 589 @@ -693,7 +1000,8 @@ ext4_xattr_set_entry(struct ext4_xattr_i
 590                 s->here->e_name_len = name_len;
 591                 memcpy(s->here->e_name, i->name, name_len);
 592         } else {
 593 -               if (!s->here->e_value_block && s->here->e_value_size) {
 594 +               if (!s->here->e_value_inum && s->here->e_value_size &&
 595 +                   s->here->e_value_offs > 0) {
 596                         void *first_val = s->base + min_offs;
 597                         size_t offs = le16_to_cpu(s->here->e_value_offs);
 598                         void *val = s->base + offs;
 599 @@ -727,13 +1035,18 @@ ext4_xattr_set_entry(struct ext4_xattr_i
 600                         last = s->first;
 601                         while (!IS_LAST_ENTRY(last)) {
 602                                 size_t o = le16_to_cpu(last->e_value_offs);
 603 -                               if (!last->e_value_block &&
 604 +                               if (!last->e_value_inum &&
 605                                     last->e_value_size && o < offs)
 606                                         last->e_value_offs =
 607                                                 cpu_to_le16(o + size);
 608                                 last = EXT4_XATTR_NEXT(last);
 609                         }
 610                 }
 611 +               if (s->here->e_value_inum) {
 612 +                       ext4_xattr_inode_unlink(inode,
 613 +                                       le32_to_cpu(s->here->e_value_inum));
 614 +                       s->here->e_value_inum = 0;
 615 +               }
 616                 if (!i->value) {
 617                         /* Remove the old name. */
 618                         size_t size = EXT4_XATTR_LEN(name_len);
 619 @@ -747,10 +1060,17 @@ ext4_xattr_set_entry(struct ext4_xattr_i
 620         if (i->value) {
 621                 /* Insert the new value. */
 622                 s->here->e_value_size = cpu_to_le32(i->value_len);
 623 -               if (i->value_len) {
 624 +               if (in_inode) {
 625 +                       unsigned long ea_ino = le32_to_cpu(s->here->e_value_inum);
 626 +                       ext4_xattr_inode_set(handle, inode, &ea_ino, i->value,
 627 +                                            i->value_len);
 628 +                       s->here->e_value_inum = cpu_to_le32(ea_ino);
 629 +                       s->here->e_value_offs = 0;
 630 +               } else if (i->value_len) {
 631                         size_t size = EXT4_XATTR_SIZE(i->value_len);
 632                         void *val = s->base + min_offs - size;
 633                         s->here->e_value_offs = cpu_to_le16(min_offs - size);
 634 +                       s->here->e_value_inum = 0;
 635                         if (i->value == EXT4_ZERO_XATTR_VALUE) {
 636                                 memset(val, 0, size);
 637                         } else {
 638 @@ -800,7 +1120,7 @@ ext4_xattr_block_find(struct inode *inod
 639                 bs->s.end = bs->bh->b_data + bs->bh->b_size;
 640                 bs->s.here = bs->s.first;
 641                 error = ext4_xattr_find_entry(&bs->s.here, i->name_index,
 642 -                                             i->name, bs->bh->b_size, 1);
 643 +                                            i->name, bs->bh->b_size, 1, inode);
 644                 if (error && error != -ENODATA)
 645                         goto cleanup;
 646                 bs->s.not_found = error;
 647 @@ -825,8 +1145,6 @@ ext4_xattr_block_set(handle_t *handle, s
 648
 649  #define header(x) ((struct ext4_xattr_header *)(x))
 650
 651 -       if (i->value && i->value_len > sb->s_blocksize)
 652 -               return -ENOSPC;
 653         if (s->base) {
 654                 BUFFER_TRACE(bs->bh, "get_write_access");
 655                 error = ext4_journal_get_write_access(handle, bs->bh);
 656 @@ -845,7 +1163,7 @@ ext4_xattr_block_set(handle_t *handle, s
 657                         mb_cache_entry_delete_block(ext4_mb_cache, hash,
 658                                                     bs->bh->b_blocknr);
 659                         ea_bdebug(bs->bh, "modifying in-place");
 660 -                       error = ext4_xattr_set_entry(i, s);
 661 +                       error = ext4_xattr_set_entry(i, s, handle, inode);
 662                         if (!error) {
 663                                 if (!IS_LAST_ENTRY(s->first))
 664                                         ext4_xattr_rehash(header(s->base),
 665 @@ -891,7 +1209,7 @@ ext4_xattr_block_set(handle_t *handle, s
 666                 s->end = s->base + sb->s_blocksize;
 667         }
 668
 669 -       error = ext4_xattr_set_entry(i, s);
 670 +       error = ext4_xattr_set_entry(i, s, handle, inode);
 671         if (error == -EFSCORRUPTED)
 672                 goto bad_block;
 673         if (error)
 674 @@ -1069,7 +1387,7 @@ int ext4_xattr_ibody_find(struct inode *
 675                 /* Find the named attribute. */
 676                 error = ext4_xattr_find_entry(&is->s.here, i->name_index,
 677                                               i->name, is->s.end -
 678 -                                             (void *)is->s.base, 0);
 679 +                                             (void *)is->s.base, 0, inode);
 680                 if (error && error != -ENODATA)
 681                         return error;
 682                 is->s.not_found = error;
 683 @@ -1087,7 +1405,7 @@ int ext4_xattr_ibody_inline_set(handle_t
 684
 685         if (EXT4_I(inode)->i_extra_isize == 0)
 686                 return -ENOSPC;
 687 -       error = ext4_xattr_set_entry(i, s);
 688 +       error = ext4_xattr_set_entry(i, s, handle, inode);
 689         if (error)
 690                 return error;
 691         header = IHDR(inode, ext4_raw_inode(&is->iloc));
 692 @@ -1111,7 +1429,7 @@ static int ext4_xattr_ibody_set(handle_t
 693
 694         if (EXT4_I(inode)->i_extra_isize == 0)
 695                 return -ENOSPC;
 696 -       error = ext4_xattr_set_entry(i, s);
 697 +       error = ext4_xattr_set_entry(i, s, handle, inode);
 698         if (error)
 699                 return error;
 700         header = IHDR(inode, ext4_raw_inode(&is->iloc));
 701 @@ -1158,7 +1476,7 @@ ext4_xattr_set_handle(handle_t *handle,
 702                 .name = name,
 703                 .value = value,
 704                 .value_len = value_len,
 705 -
 706 +               .in_inode = 0,
 707         };
 708         struct ext4_xattr_ibody_find is = {
 709                 .s = { .not_found = -ENODATA, },
 710 @@ -1228,6 +1546,15 @@ ext4_xattr_set_handle(handle_t *handle,
 711                                         goto cleanup;
 712                         }
 713                         error = ext4_xattr_block_set(handle, inode, &i, &bs);
 714 +                       if (EXT4_HAS_INCOMPAT_FEATURE(inode->i_sb,
 715 +                                       EXT4_FEATURE_INCOMPAT_EA_INODE) &&
 716 +                           error == -ENOSPC) {
 717 +                               /* xattr not fit to block, store at external
 718 +                                * inode */
 719 +                               i.in_inode = 1;
 720 +                               error = ext4_xattr_ibody_set(handle, inode,
 721 +                                                            &i, &is);
 722 +                       }
 723                         if (error)
 724                                 goto cleanup;
 725                         if (!is.s.not_found) {
 726 @@ -1272,9 +1599,22 @@ ext4_xattr_set(struct inode *inode, int
 727                const void *value, size_t value_len, int flags)
 728  {
 729         handle_t *handle;
 730 +       struct super_block *sb = inode->i_sb;
 731         int error, retries = 0;
 732         int credits = ext4_jbd2_credits_xattr(inode);
 733
 734 +       if ((value_len >= EXT4_XATTR_MIN_LARGE_EA_SIZE(sb->s_blocksize)) &&
 735 +           EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_EA_INODE)) {
 736 +               int nrblocks = (value_len + sb->s_blocksize - 1) >>
 737 +                                       sb->s_blocksize_bits;
 738 +
 739 +               /* For new inode */
 740 +               credits += EXT4_SINGLEDATA_TRANS_BLOCKS(sb) + 3;
 741 +
 742 +               /* For data blocks of EA inode */
 743 +               credits += ext4_meta_trans_blocks(inode, nrblocks, 0);
 744 +       }
 745 +
 746  retry:
 747         handle = ext4_journal_start(inode, EXT4_HT_XATTR, credits);
 748         if (IS_ERR(handle)) {
 749 @@ -1286,7 +1626,7 @@ retry:
 750                                               value, value_len, flags);
 751                 error2 = ext4_journal_stop(handle);
 752                 if (error == -ENOSPC &&
 753 -                   ext4_should_retry_alloc(inode->i_sb, &retries))
 754 +                   ext4_should_retry_alloc(sb, &retries))
 755                         goto retry;
 756                 if (error == 0)
 757                         error = error2;
 758 @@ -1308,7 +1648,7 @@ static void ext4_xattr_shift_entries(str
 759
 760         /* Adjust the value offsets of the entries */
 761         for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) {
 762 -               if (!last->e_value_block && last->e_value_size) {
 763 +               if (!last->e_value_inum && last->e_value_size) {
 764                         new_offs = le16_to_cpu(last->e_value_offs) +
 765                                                         value_offs_shift;
 766                         BUG_ON(new_offs + le32_to_cpu(last->e_value_size)
 767 @@ -1562,21 +1902,135 @@ cleanup:
 768  }
 769
 770
 771 +#define EIA_INCR 16 /* must be 2^n */
 772 +#define EIA_MASK (EIA_INCR - 1)
 773 +/* Add the large xattr @ino into @lea_ino_array for later deletion.
 774 + * If @lea_ino_array is new or full it will be grown and the old
 775 + * contents copied over.
 776 + */
 777 +static int
 778 +ext4_expand_ino_array(struct ext4_xattr_ino_array **lea_ino_array, __u32 ino)
 779 +{
 780 +       if (*lea_ino_array == NULL) {
 781 +               /*
 782 +                * Start with 15 inodes, so it fits into a power-of-two size.
 783 +                * If *lea_ino_array is NULL, this is essentially offsetof()
 784 +                */
 785 +               (*lea_ino_array) =
 786 +                       kmalloc(offsetof(struct ext4_xattr_ino_array,
 787 +                                        xia_inodes[EIA_MASK]),
 788 +                               GFP_NOFS);
 789 +               if (*lea_ino_array == NULL)
 790 +                       return -ENOMEM;
 791 +               (*lea_ino_array)->xia_count = 0;
 792 +       } else if (((*lea_ino_array)->xia_count & EIA_MASK) == EIA_MASK) {
 793 +               /* expand the array once all 15 + n * 16 slots are full */
 794 +               struct ext4_xattr_ino_array *new_array = NULL;
 795 +               int count = (*lea_ino_array)->xia_count;
 796 +
 797 +               /* if new_array is NULL, this is essentially offsetof() */
 798 +               new_array = kmalloc(
 799 +                               offsetof(struct ext4_xattr_ino_array,
 800 +                                        xia_inodes[count + EIA_INCR]),
 801 +                               GFP_NOFS);
 802 +               if (new_array == NULL)
 803 +                       return -ENOMEM;
 804 +               memcpy(new_array, *lea_ino_array,
 805 +                      offsetof(struct ext4_xattr_ino_array,
 806 +                               xia_inodes[count]));
 807 +               kfree(*lea_ino_array);
 808 +               *lea_ino_array = new_array;
 809 +       }
 810 +       (*lea_ino_array)->xia_inodes[(*lea_ino_array)->xia_count++] = ino;
 811 +       return 0;
 812 +}
 813 +
 814 +/**
 815 + * Add xattr inode to orphan list
 816 + */
 817 +static int
 818 +ext4_xattr_inode_orphan_add(handle_t *handle, struct inode *inode,
 819 +                       int credits, struct ext4_xattr_ino_array *lea_ino_array)
 820 +{
 821 +       struct inode *ea_inode = NULL;
 822 +       int idx = 0, error = 0;
 823 +
 824 +       if (lea_ino_array == NULL)
 825 +               return 0;
 826 +
 827 +       for (; idx < lea_ino_array->xia_count; ++idx) {
 828 +               if (!ext4_handle_has_enough_credits(handle, credits)) {
 829 +                       error = ext4_journal_extend(handle, credits);
 830 +                       if (error > 0)
 831 +                               error = ext4_journal_restart(handle, credits);
 832 +
 833 +                       if (error != 0) {
 834 +                               ext4_warning(inode->i_sb,
 835 +                                       "couldn't extend journal "
 836 +                                       "(err %d)", error);
 837 +                               return error;
 838 +                       }
 839 +               }
 840 +               ea_inode = ext4_xattr_inode_iget(inode,
 841 +                               lea_ino_array->xia_inodes[idx], &error);
 842 +               if (error)
 843 +                       continue;
 844 +               ext4_orphan_add(handle, ea_inode);
 845 +               /* the inode's i_count will be released by caller */
 846 +       }
 847 +
 848 +       return 0;
 849 +}
 850
 851  /*
 852   * ext4_xattr_delete_inode()
 853   *
 854 - * Free extended attribute resources associated with this inode. This
 855 + * Free extended attribute resources associated with this inode. Traverse
 856 + * all entries and unlink any xattr inodes associated with this inode. This
 857   * is called immediately before an inode is freed. We have exclusive
 858 - * access to the inode.
 859 + * access to the inode. If an orphan inode is deleted it will also delete any
 860 + * xattr block and all xattr inodes. They are checked by ext4_xattr_inode_iget()
 861 + * to ensure they belong to the parent inode and were not deleted already.
 862   */
 863 -void
 864 -ext4_xattr_delete_inode(handle_t *handle, struct inode *inode)
 865 +int
 866 +ext4_xattr_delete_inode(handle_t *handle, struct inode *inode,
 867 +                       struct ext4_xattr_ino_array **lea_ino_array)
 868  {
 869         struct buffer_head *bh = NULL;
 870 +       struct ext4_xattr_ibody_header *header;
 871 +       struct ext4_inode *raw_inode;
 872 +       struct ext4_iloc iloc;
 873 +       struct ext4_xattr_entry *entry;
 874 +       int credits = 3, error = 0;
 875
 876 -       if (!EXT4_I(inode)->i_file_acl)
 877 +       if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR))
 878 +               goto delete_external_ea;
 879 +
 880 +       error = ext4_get_inode_loc(inode, &iloc);
 881 +       if (error)
 882                 goto cleanup;
 883 +       raw_inode = ext4_raw_inode(&iloc);
 884 +       header = IHDR(inode, raw_inode);
 885 +       for (entry = IFIRST(header); !IS_LAST_ENTRY(entry);
 886 +            entry = EXT4_XATTR_NEXT(entry)) {
 887 +               if (!entry->e_value_inum)
 888 +                       continue;
 889 +               if (ext4_expand_ino_array(lea_ino_array,
 890 +                                         entry->e_value_inum) != 0) {
 891 +                       brelse(iloc.bh);
 892 +                       goto cleanup;
 893 +               }
 894 +               entry->e_value_inum = 0;
 895 +       }
 896 +       brelse(iloc.bh);
 897 +
 898 +delete_external_ea:
 899 +       if (!EXT4_I(inode)->i_file_acl) {
 900 +               /* add xattr inode to orphan list */
 901 +               ext4_xattr_inode_orphan_add(handle, inode, credits,
 902 +                                               *lea_ino_array);
 903 +               goto cleanup;
 904 +       }
 905         bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
 906         if (!bh) {
 907                 EXT4_ERROR_INODE(inode, "block %llu read error",
 908 @@ -1589,11 +2043,69 @@ ext4_xattr_delete_inode(handle_t *handle
 909                                  EXT4_I(inode)->i_file_acl);
 910                 goto cleanup;
 911         }
 912 +
 913 +       for (entry = BFIRST(bh); !IS_LAST_ENTRY(entry);
 914 +            entry = EXT4_XATTR_NEXT(entry)) {
 915 +               if (!entry->e_value_inum)
 916 +                       continue;
 917 +               if (ext4_expand_ino_array(lea_ino_array,
 918 +                                         entry->e_value_inum) != 0)
 919 +                       goto cleanup;
 920 +               entry->e_value_inum = 0;
 921 +       }
 922 +
 923 +       /* add xattr inode to orphan list */
 924 +       error = ext4_xattr_inode_orphan_add(handle, inode, credits,
 925 +                                       *lea_ino_array);
 926 +       if (error != 0)
 927 +               goto cleanup;
 928 +
 929 +       if (!IS_NOQUOTA(inode))
 930 +               credits += 2 * EXT4_QUOTA_DEL_BLOCKS(inode->i_sb);
 931 +
 932 +       if (!ext4_handle_has_enough_credits(handle, credits)) {
 933 +               error = ext4_journal_extend(handle, credits);
 934 +               if (error > 0)
 935 +                       error = ext4_journal_restart(handle, credits);
 936 +               if (error != 0) {
 937 +                       ext4_warning(inode->i_sb,
 938 +                               "couldn't extend journal (err %d)", error);
 939 +                       goto cleanup;
 940 +               }
 941 +       }
 942 +
 943         ext4_xattr_release_block(handle, inode, bh);
 944         EXT4_I(inode)->i_file_acl = 0;
 945
 946  cleanup:
 947         brelse(bh);
 948 +
 949 +       return error;
 950 +}
 951 +
 952 +void
 953 +ext4_xattr_inode_array_free(struct inode *inode,
 954 +                           struct ext4_xattr_ino_array *lea_ino_array)
 955 +{
 956 +       struct inode    *ea_inode = NULL;
 957 +       int             idx = 0;
 958 +       int             err;
 959 +
 960 +       if (lea_ino_array == NULL)
 961 +               return;
 962 +
 963 +       for (; idx < lea_ino_array->xia_count; ++idx) {
 964 +               ea_inode = ext4_xattr_inode_iget(inode,
 965 +                               lea_ino_array->xia_inodes[idx], &err);
 966 +               if (err)
 967 +                       continue;
 968 +               /* for inode's i_count get from ext4_xattr_delete_inode */
 969 +               if (!list_empty(&EXT4_I(ea_inode)->i_orphan))
 970 +                       iput(ea_inode);
 971 +               clear_nlink(ea_inode);
 972 +               iput(ea_inode);
 973 +       }
 974 +       kfree(lea_ino_array);
 975  }
 976
 977  /*
 978 @@ -1645,10 +2157,9 @@ ext4_xattr_cmp(struct ext4_xattr_header
 979                     entry1->e_name_index != entry2->e_name_index ||
 980                     entry1->e_name_len != entry2->e_name_len ||
 981                     entry1->e_value_size != entry2->e_value_size ||
 982 +                   entry1->e_value_inum != entry2->e_value_inum ||
 983                     memcmp(entry1->e_name, entry2->e_name, entry1->e_name_len))
 984                         return 1;
 985 -               if (entry1->e_value_block != 0 || entry2->e_value_block != 0)
 986 -                       return -EFSCORRUPTED;
 987                 if (memcmp((char *)header1 + le16_to_cpu(entry1->e_value_offs),
 988                            (char *)header2 + le16_to_cpu(entry2->e_value_offs),
 989                            le32_to_cpu(entry1->e_value_size)))
 990 @@ -1720,7 +2231,7 @@ static inline void ext4_xattr_hash_entry
 991                        *name++;
 992         }
 993
 994 -       if (entry->e_value_block == 0 && entry->e_value_size != 0) {
 995 +       if (!entry->e_value_inum && entry->e_value_size) {
 996                 __le32 *value = (__le32 *)((char *)header +
 997                         le16_to_cpu(entry->e_value_offs));
 998                 for (n = (le32_to_cpu(entry->e_value_size) +
 999 Index: linux-stage/fs/ext4/xattr.h
1000 ===================================================================
1001 --- linux-stage.orig/fs/ext4/xattr.h
1002 +++ linux-stage/fs/ext4/xattr.h
1003 @@ -42,7 +42,7 @@ struct ext4_xattr_entry {
1004         __u8    e_name_len;     /* length of name */
1005         __u8    e_name_index;   /* attribute name index */
1006         __le16  e_value_offs;   /* offset in disk block of value */
1007 -       __le32  e_value_block;  /* disk block attribute is stored on (n/i) */
1008 +       __le32  e_value_inum;   /* inode in which the value is stored */
1009         __le32  e_value_size;   /* size of attribute value */
1010         __le32  e_hash;         /* hash value of name and value */
1011         char    e_name[0];      /* attribute name */
1012 @@ -67,6 +67,26 @@ struct ext4_xattr_entry {
1013                 EXT4_I(inode)->i_extra_isize))
1014  #define IFIRST(hdr) ((struct ext4_xattr_entry *)((hdr)+1))
1015
1016 +/*
1017 + * Link EA inode back to parent one using i_mtime field.
1018 + * Extra integer type conversion added to ignore higher
1019 + * bits in i_mtime.tv_sec which might be set by ext4_get()
1020 + */
1021 +#define EXT4_XATTR_INODE_SET_PARENT(inode, inum)      \
1022 +do {                                                  \
1023 +      (inode)->i_mtime.tv_sec = inum;                 \
1024 +} while(0)
1025 +
1026 +#define EXT4_XATTR_INODE_GET_PARENT(inode)            \
1027 +((__u32)(inode)->i_mtime.tv_sec)
1028 +
1029 +/*
1030 + * The minimum size of EA value when you start storing it in an external inode
1031 + * size of block - size of header - size of 1 entry - 4 null bytes
1032 +*/
1033 +#define EXT4_XATTR_MIN_LARGE_EA_SIZE(b)                                        \
1034 +       ((b) - EXT4_XATTR_LEN(3) - sizeof(struct ext4_xattr_header) - 4)
1035 +
1036  #define BHDR(bh) ((struct ext4_xattr_header *)((bh)->b_data))
1037  #define ENTRY(ptr) ((struct ext4_xattr_entry *)(ptr))
1038  #define BFIRST(bh) ENTRY(BHDR(bh)+1)
1039 @@ -75,10 +84,11 @@ struct ext4_xattr_entry {
1040  #define EXT4_ZERO_XATTR_VALUE ((void *)-1)
1041
1042  struct ext4_xattr_info {
1043 -       int name_index;
1044         const char *name;
1045         const void *value;
1046         size_t value_len;
1047 +       int name_index;
1048 +       int in_inode;
1049  };
1050
1051  struct ext4_xattr_search {
1052 @@ -106,7 +116,13 @@ extern int ext4_xattr_get(struct inode *
1053  extern int ext4_xattr_set(struct inode *, int, const char *, const void *, size_t, int);
1054  extern int ext4_xattr_set_handle(handle_t *, struct inode *, int, const char *, const void *, size_t, int);
1055
1056 -extern void ext4_xattr_delete_inode(handle_t *, struct inode *);
1057 +extern struct inode *ext4_xattr_inode_iget(struct inode *parent, unsigned long ea_ino,
1058 +                                          int *err);
1059 +extern int ext4_xattr_inode_unlink(struct inode *inode, unsigned long ea_ino);
1060 +extern int ext4_xattr_delete_inode(handle_t *handle, struct inode *inode,
1061 +                                  struct ext4_xattr_ino_array **array);
1062 +extern void ext4_xattr_inode_array_free(struct inode *inode,
1063 +                                       struct ext4_xattr_ino_array *array);
1064
1065  extern void ext4_xattr_put_super(struct super_block *);
1066  extern int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
1067 Index: linux-stage/fs/ext4/ialloc.c
1068 ===================================================================
1069 --- linux-stage.orig/fs/ext4/ialloc.c
1070 +++ linux-stage/fs/ext4/ialloc.c
1071 @@ -269,7 +269,6 @@ void ext4_free_inode(handle_t *handle, s
1072          * as writing the quota to disk may need the lock as well.
1073          */
1074         dquot_initialize(inode);
1075 -       ext4_xattr_delete_inode(handle, inode);
1076         dquot_free_inode(inode);
1077         dquot_drop(inode);
1078
1079 Index: linux-stage/fs/ext4/inline.c
1080 ===================================================================
1081 --- linux-stage.orig/fs/ext4/inline.c
1082 +++ linux-stage/fs/ext4/inline.c
1083 @@ -59,7 +59,7 @@ static int get_max_inline_xattr_value_si
1084
1085         /* Compute min_offs. */
1086         for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {
1087 -               if (!entry->e_value_block && entry->e_value_size) {
1088 +               if (!entry->e_value_inum && entry->e_value_size) {
1089                         size_t offs = le16_to_cpu(entry->e_value_offs);
1090                         if (offs < min_offs)
1091                                 min_offs = offs;