slab: remove useless statement for checking pfmemalloc
Now, virt_to_page(page->s_mem) is same as the page, because slab use this structure for management. So remove useless statement. Acked-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Pekka Enberg <penberg@iki.fi>
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@ -750,9 +750,7 @@ static struct array_cache *alloc_arraycache(int node, int entries,
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static inline bool is_slab_pfmemalloc(struct page *page)
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{
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struct page *mem_page = virt_to_page(page->s_mem);
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return PageSlabPfmemalloc(mem_page);
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return PageSlabPfmemalloc(page);
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}
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/* Clears pfmemalloc_active if no slabs have pfmalloc set */
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@ -817,7 +815,7 @@ static void *__ac_get_obj(struct kmem_cache *cachep, struct array_cache *ac,
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n = cachep->node[numa_mem_id()];
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if (!list_empty(&n->slabs_free) && force_refill) {
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struct page *page = virt_to_head_page(objp);
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ClearPageSlabPfmemalloc(virt_to_head_page(page->s_mem));
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ClearPageSlabPfmemalloc(page);
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clear_obj_pfmemalloc(&objp);
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recheck_pfmemalloc_active(cachep, ac);
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return objp;
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@ -850,8 +848,7 @@ static void *__ac_put_obj(struct kmem_cache *cachep, struct array_cache *ac,
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if (unlikely(pfmemalloc_active)) {
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/* Some pfmemalloc slabs exist, check if this is one */
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struct page *page = virt_to_head_page(objp);
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struct page *mem_page = virt_to_head_page(page->s_mem);
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if (PageSlabPfmemalloc(mem_page))
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if (PageSlabPfmemalloc(page))
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set_obj_pfmemalloc(&objp);
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}
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