Commit f619cfe1 authored by Christoph Lameter's avatar Christoph Lameter
Browse files

slub: Add kmalloc_large_node() to support kmalloc_node fallback 



Slub is missing some NUMA support for large kmallocs. Provide that.

Reviewed-by: default avatarPekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: default avatarChristoph Lameter <clameter@sgi.com>
parent 76931434

mm/slub.c

+13 −2
Original line number Diff line number Diff line
@@ -2592,13 +2592,24 @@ void *__kmalloc(size_t size, gfp_t flags) 
}

EXPORT_SYMBOL(__kmalloc);



static void *kmalloc_large_node(size_t size, gfp_t flags, int node)

{

	struct page *page = alloc_pages_node(node, flags | __GFP_COMP,

						get_order(size));



	if (page)

		return page_address(page);

	else

		return NULL;

}



#ifdef CONFIG_NUMA

void *__kmalloc_node(size_t size, gfp_t flags, int node)

{

	struct kmem_cache *s;



	if (unlikely(size > PAGE_SIZE))

		return kmalloc_large(size, flags);

		return kmalloc_large_node(size, flags, node);



	s = get_slab(size, flags);
@@ -3146,7 +3157,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags, 
	struct kmem_cache *s;



	if (unlikely(size > PAGE_SIZE))

		return kmalloc_large(size, gfpflags);

		return kmalloc_large_node(size, gfpflags, node);



	s = get_slab(size, gfpflags);