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Rev 3424 Rev 3597
Line 336... Line 336...
336 
        list_append(&n->link, &u->freed_head);
 336 
        list_append(&n->link, &u->freed_head);
337 
    }
 337 
    }
338 
    futex_up(&unused_futex);
 338 
    futex_up(&unused_futex);
339 
}
 339 
}
340 
 
 340 
 
- 
 
 341 
static fat_idx_t *fat_idx_get_new_core(dev_handle_t dev_handle)
- 
 
 342 
{
- 
 
 343 
    fat_idx_t *fidx;
- 
 
 344 
 
- 
 
 345 
    fidx = (fat_idx_t *) malloc(sizeof(fat_idx_t));
- 
 
 346 
    if (!fidx)
- 
 
 347 
        return NULL;
- 
 
 348 
    if (!fat_idx_alloc(dev_handle, &fidx->index)) {
- 
 
 349 
        free(fidx);
- 
 
 350 
        return NULL;
- 
 
 351 
    }
- 
 
 352 
       
- 
 
 353 
    link_initialize(&fidx->uph_link);
- 
 
 354 
    link_initialize(&fidx->uih_link);
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 355 
    futex_initialize(&fidx->lock, 1);
- 
 
 356 
    fidx->dev_handle = dev_handle;
- 
 
 357 
    fidx->pfc = FAT_CLST_RES0;  /* no parent yet */
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 358 
    fidx->pdi = 0;
- 
 
 359 
    fidx->nodep = NULL;
- 
 
 360 
 
- 
 
 361 
    return fidx;
- 
 
 362 
}
- 
 
 363 
 
- 
 
 364 
fat_idx_t *fat_idx_get_new(dev_handle_t dev_handle)
- 
 
 365 
{
- 
 
 366 
    fat_idx_t *fidx;
- 
 
 367 
 
- 
 
 368 
    futex_down(&used_futex);
- 
 
 369 
    fidx = fat_idx_get_new_core(dev_handle);
- 
 
 370 
    if (!fidx) {
- 
 
 371 
        futex_up(&used_futex);
- 
 
 372 
        return NULL;
- 
 
 373 
    }
- 
 
 374 
       
- 
 
 375 
    unsigned long ikey[] = {
- 
 
 376 
        [UIH_DH_KEY] = dev_handle,
- 
 
 377 
        [UIH_INDEX_KEY] = fidx->index,
- 
 
 378 
    };
- 
 
 379 
   
- 
 
 380 
    hash_table_insert(&ui_hash, ikey, &fidx->uih_link);
- 
 
 381 
    futex_down(&fidx->lock);
- 
 
 382 
    futex_up(&used_futex);
- 
 
 383 
 
- 
 
 384 
    return fidx;
- 
 
 385 
}
- 
 
 386 
 
341 
fat_idx_t *
 387 
fat_idx_t *
342 
fat_idx_get_by_pos(dev_handle_t dev_handle, fat_cluster_t pfc, unsigned pdi)
 388 
fat_idx_get_by_pos(dev_handle_t dev_handle, fat_cluster_t pfc, unsigned pdi)
343 
{
 389 
{
344 
    fat_idx_t *fidx;
 390 
    fat_idx_t *fidx;
345 
    link_t *l;
 391 
    link_t *l;
Line 352... Line 398...
352 
    futex_down(&used_futex);
 398 
    futex_down(&used_futex);
353 
    l = hash_table_find(&up_hash, pkey);
 399 
    l = hash_table_find(&up_hash, pkey);
354 
    if (l) {
 400 
    if (l) {
355 
        fidx = hash_table_get_instance(l, fat_idx_t, uph_link);
 401 
        fidx = hash_table_get_instance(l, fat_idx_t, uph_link);
356 
    } else {
 402 
    } else {
357 
        fidx = (fat_idx_t *) malloc(sizeof(fat_idx_t));
 403 
        fidx = fat_idx_get_new_core(dev_handle);
358 
        if (!fidx) {
 404 
        if (!fidx) {
359 
            futex_up(&used_futex);
 405 
            futex_up(&used_futex);
360 
            return NULL;
 406 
            return NULL;
361 
        }
 407 
        }
362 
        if (!fat_idx_alloc(dev_handle, &fidx->index)) {
 - 
 
363 
            free(fidx);
 - 
 
364 
            futex_up(&used_futex);
 - 
 
365 
            return NULL;
 - 
 
366 
        }
 - 
 
367 
       
 408 
       
368 
        unsigned long ikey[] = {
 409 
        unsigned long ikey[] = {
369 
            [UIH_DH_KEY] = dev_handle,
 410 
            [UIH_DH_KEY] = dev_handle,
370 
            [UIH_INDEX_KEY] = fidx->index,
 411 
            [UIH_INDEX_KEY] = fidx->index,
371 
        };
 412 
        };
372 
   
 413 
   
373 
        link_initialize(&fidx->uph_link);
 - 
 
374 
        link_initialize(&fidx->uih_link);
 - 
 
375 
        futex_initialize(&fidx->lock, 1);
 - 
 
376 
        fidx->dev_handle = dev_handle;
 - 
 
377 
        fidx->pfc = pfc;
 414 
        fidx->pfc = pfc;
378 
        fidx->pdi = pdi;
 415 
        fidx->pdi = pdi;
379 
        fidx->nodep = NULL;
 - 
 
380 
 
 416 
 
381 
        hash_table_insert(&up_hash, pkey, &fidx->uph_link);
 417 
        hash_table_insert(&up_hash, pkey, &fidx->uph_link);
382 
        hash_table_insert(&ui_hash, ikey, &fidx->uih_link);
 418 
        hash_table_insert(&ui_hash, ikey, &fidx->uih_link);
383 
    }
 419 
    }
384 
    futex_down(&fidx->lock);
 420 
    futex_down(&fidx->lock);