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Commit 12d79634 authored by Alex,Shi's avatar Alex,Shi Committed by Pekka Enberg
Browse files

slub: Code optimization in get_partial_node() 



I find a way to reduce a variable in get_partial_node(). That is also helpful
for code understanding.

Acked-by: default avatarChristoph Lameter <cl@linux.com>
Signed-off-by: default avatarAlex Shi <alex.shi@intel.com>
Signed-off-by: default avatarPekka Enberg <penberg@kernel.org>
parent aca726a0

mm/slub.c

+2 −4
Original line number Diff line number Diff line
@@ -1600,7 +1600,6 @@ static void *get_partial_node(struct kmem_cache *s, 
{

	struct page *page, *page2;

	void *object = NULL;

	int count = 0;



	/*

	 * Racy check. If we mistakenly see no partial slabs then we
@@ -1613,17 +1612,16 @@ static void *get_partial_node(struct kmem_cache *s, 


	spin_lock(&n->list_lock);

	list_for_each_entry_safe(page, page2, &n->partial, lru) {

		void *t = acquire_slab(s, n, page, count == 0);

		void *t = acquire_slab(s, n, page, object == NULL);

		int available;



		if (!t)

			break;



		if (!count) {

		if (!object) {

			c->page = page;

			c->node = page_to_nid(page);

			stat(s, ALLOC_FROM_PARTIAL);

			count++;

			object = t;

			available =  page->objects - page->inuse;

		} else {