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Commit 7b55f620 authored by Christoph Lameter's avatar Christoph Lameter Committed by Linus Torvalds
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SLUB: Simplify dma index -> size calculation 



There is no need to caculate the dma slab size ourselves. We can simply
lookup the size of the corresponding non dma slab.

Signed-off-by: default avatarChristoph Lameter <clameter@sgi.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f1b26339

mm/slub.c

+1 −9
Original line number Diff line number Diff line
@@ -2289,15 +2289,7 @@ static noinline struct kmem_cache *dma_kmalloc_cache(int index, gfp_t flags) 
	if (!x)

		panic("Unable to allocate memory for dma cache\n");



	if (index <= KMALLOC_SHIFT_HIGH)

		realsize = 1 << index;

	else {

		if (index == 1)

			realsize = 96;

		else

			realsize = 192;

	}



	realsize = kmalloc_caches[index].objsize;

	text = kasprintf(flags & ~SLUB_DMA, "kmalloc_dma-%d",

			(unsigned int)realsize);

	s = create_kmalloc_cache(x, text, realsize, flags);