Commit 5b15f3fb authored by Haifeng Xu's avatar Haifeng Xu Committed by Vlastimil Babka
Browse files

slub: Set __GFP_COMP in kmem_cache by default 



Now the __GFP_COMP is set only if the higher-order is not 0. However,
__GFP_COMP flag can be set unconditionally because compound page can
not be created in the order-0 case. And this can also simplify the code
a bit (no need to check the order is 0 or not).

Signed-off-by: default avatarHaifeng Xu <haifeng.xu@shopee.com>
Reviewed-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: default avatarVlastimil Babka <vbabka@suse.cz>
parent 5aa5c7b9

mm/slub.c

+1 −3
Original line number Diff line number Diff line
@@ -5089,9 +5089,7 @@ static int calculate_sizes(struct kmem_cache *s) 
	if ((int)order < 0)

		return 0;



	s->allocflags = 0;

	if (order)

		s->allocflags |= __GFP_COMP;

	s->allocflags = __GFP_COMP;



	if (s->flags & SLAB_CACHE_DMA)

		s->allocflags |= GFP_DMA;