diff options
| author | Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2013-10-24 10:07:50 +0900 |
|---|---|---|
| committer | Pekka Enberg <penberg@iki.fi> | 2013-10-24 20:17:34 +0300 |
| commit | 7ecccf9d1e416fe61bb1caa0a94605b522feeaf3 (patch) | |
| tree | 5261bed04e358b1bf9e84ff2ad050157d12edcad | |
| parent | 8456a648cf44f14365f1f44de90a3da2526a4776 (diff) | |
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>
| -rw-r--r-- | mm/slab.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/mm/slab.c b/mm/slab.c index 0e7f2e73e08..fbb594f2259 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -750,9 +750,7 @@ static struct array_cache *alloc_arraycache(int node, int entries, static inline bool is_slab_pfmemalloc(struct page *page) { - struct page *mem_page = virt_to_page(page->s_mem); - - return PageSlabPfmemalloc(mem_page); + return PageSlabPfmemalloc(page); } /* Clears pfmemalloc_active if no slabs have pfmalloc set */ @@ -817,7 +815,7 @@ static void *__ac_get_obj(struct kmem_cache *cachep, struct array_cache *ac, n = cachep->node[numa_mem_id()]; if (!list_empty(&n->slabs_free) && force_refill) { struct page *page = virt_to_head_page(objp); - ClearPageSlabPfmemalloc(virt_to_head_page(page->s_mem)); + ClearPageSlabPfmemalloc(page); clear_obj_pfmemalloc(&objp); recheck_pfmemalloc_active(cachep, ac); return objp; @@ -850,8 +848,7 @@ static void *__ac_put_obj(struct kmem_cache *cachep, struct array_cache *ac, if (unlikely(pfmemalloc_active)) { /* Some pfmemalloc slabs exist, check if this is one */ struct page *page = virt_to_head_page(objp); - struct page *mem_page = virt_to_head_page(page->s_mem); - if (PageSlabPfmemalloc(mem_page)) + if (PageSlabPfmemalloc(page)) set_obj_pfmemalloc(&objp); } |