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| Rev 3665 | Rev 3742 | ||
|---|---|---|---|
| Line 387... | Line 387... | ||
| 387 | block_t *b; |
387 | block_t *b; |
| 388 | int i, j; |
388 | int i, j; |
| 389 | uint16_t bps; |
389 | uint16_t bps; |
| 390 | unsigned dps; |
390 | unsigned dps; |
| 391 | unsigned blocks; |
391 | unsigned blocks; |
| - | 392 | fat_cluster_t mcl, lcl; |
|
| - | 393 | int rc; |
|
| 392 | 394 | ||
| 393 | futex_down(&childp->lock); |
395 | futex_down(&childp->lock); |
| 394 | if (childp->lnkcnt == 1) { |
396 | if (childp->lnkcnt == 1) { |
| 395 | /* |
397 | /* |
| 396 | * On FAT, we don't support multiple hard links. |
398 | * On FAT, we don't support multiple hard links. |
| Line 435... | Line 437... | ||
| 435 | goto hit; |
437 | goto hit; |
| 436 | } |
438 | } |
| 437 | } |
439 | } |
| 438 | block_put(b); |
440 | block_put(b); |
| 439 | } |
441 | } |
| - | 442 | j = 0; |
|
| 440 | 443 | ||
| 441 | /* |
444 | /* |
| 442 | * We need to grow the parent in order to create a new unused dentry. |
445 | * We need to grow the parent in order to create a new unused dentry. |
| 443 | */ |
446 | */ |
| - | 447 | if (parentp->idx->pfc == FAT_CLST_ROOT) { |
|
| - | 448 | /* Can't grow the root directory. */ |
|
| 444 | futex_up(&parentp->idx->lock); |
449 | futex_up(&parentp->idx->lock); |
| 445 | return ENOTSUP; /* XXX */ |
450 | return ENOSPC; |
| - | 451 | } |
|
| - | 452 | rc = fat_alloc_clusters(bs, parentp->idx->dev_handle, 1, &mcl, &lcl); |
|
| - | 453 | if (rc != EOK) { |
|
| - | 454 | futex_up(&parentp->idx->lock); |
|
| - | 455 | return rc; |
|
| - | 456 | } |
|
| - | 457 | fat_append_clusters(bs, parentp, mcl); |
|
| - | 458 | b = fat_block_get(bs, parentp, i, BLOCK_FLAGS_NOREAD); |
|
| - | 459 | d = (fat_dentry_t *)b->data; |
|
| - | 460 | /* |
|
| - | 461 | * Clear all dentries in the block except for the first one (the first |
|
| - | 462 | * dentry will be cleared in the next step). |
|
| - | 463 | */ |
|
| - | 464 | memset(d + 1, 0, bps - sizeof(fat_dentry_t)); |
|
| 446 | 465 | ||
| 447 | hit: |
466 | hit: |
| 448 | /* |
467 | /* |
| 449 | * At this point we only establish the link between the parent and the |
468 | * At this point we only establish the link between the parent and the |
| 450 | * child. The dentry, except of the name and the extension, will remain |
469 | * child. The dentry, except of the name and the extension, will remain |
| 451 | * uninitialized until the the corresponding node is synced. Thus the |
470 | * uninitialized until the corresponding node is synced. Thus the valid |
| 452 | * valid dentry data is kept in the child node structure. |
471 | * dentry data is kept in the child node structure. |
| 453 | */ |
472 | */ |
| 454 | memset(d, 0, sizeof(fat_dentry_t)); |
473 | memset(d, 0, sizeof(fat_dentry_t)); |
| 455 | fat_dentry_name_set(d, name); |
474 | fat_dentry_name_set(d, name); |
| 456 | b->dirty = true; /* need to sync block */ |
475 | b->dirty = true; /* need to sync block */ |
| 457 | block_put(b); |
476 | block_put(b); |