diff options
Diffstat (limited to 'mm/slub.c')
-rw-r--r-- | mm/slub.c | 37 |
1 files changed, 0 insertions, 37 deletions
@@ -2467,43 +2467,6 @@ int kmem_cache_shrink(struct kmem_cache *s) | |||
2467 | } | 2467 | } |
2468 | EXPORT_SYMBOL(kmem_cache_shrink); | 2468 | EXPORT_SYMBOL(kmem_cache_shrink); |
2469 | 2469 | ||
2470 | /** | ||
2471 | * krealloc - reallocate memory. The contents will remain unchanged. | ||
2472 | * @p: object to reallocate memory for. | ||
2473 | * @new_size: how many bytes of memory are required. | ||
2474 | * @flags: the type of memory to allocate. | ||
2475 | * | ||
2476 | * The contents of the object pointed to are preserved up to the | ||
2477 | * lesser of the new and old sizes. If @p is %NULL, krealloc() | ||
2478 | * behaves exactly like kmalloc(). If @size is 0 and @p is not a | ||
2479 | * %NULL pointer, the object pointed to is freed. | ||
2480 | */ | ||
2481 | void *krealloc(const void *p, size_t new_size, gfp_t flags) | ||
2482 | { | ||
2483 | void *ret; | ||
2484 | size_t ks; | ||
2485 | |||
2486 | if (unlikely(!p || p == ZERO_SIZE_PTR)) | ||
2487 | return kmalloc(new_size, flags); | ||
2488 | |||
2489 | if (unlikely(!new_size)) { | ||
2490 | kfree(p); | ||
2491 | return ZERO_SIZE_PTR; | ||
2492 | } | ||
2493 | |||
2494 | ks = ksize(p); | ||
2495 | if (ks >= new_size) | ||
2496 | return (void *)p; | ||
2497 | |||
2498 | ret = kmalloc(new_size, flags); | ||
2499 | if (ret) { | ||
2500 | memcpy(ret, p, min(new_size, ks)); | ||
2501 | kfree(p); | ||
2502 | } | ||
2503 | return ret; | ||
2504 | } | ||
2505 | EXPORT_SYMBOL(krealloc); | ||
2506 | |||
2507 | /******************************************************************** | 2470 | /******************************************************************** |
2508 | * Basic setup of slabs | 2471 | * Basic setup of slabs |
2509 | *******************************************************************/ | 2472 | *******************************************************************/ |