page_get_cache() does not need to call compound_head(), as its unique
caller virt_to_slab() already makes sure to return a head page.
Additionally, removing the compound_head() call makes page_get_cache()
consistent with page_get_slab().
Signed-off-by: Michel Lespinasse <walken@xxxxxxxxxx>
---
mm/slab.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/mm/slab.c b/mm/slab.c
index e901a36..6a1aa1f 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -501,7 +501,6 @@ static inline void page_set_cache(struct page *page, struct kmem_cache *cache)
static inline struct kmem_cache *page_get_cache(struct page *page)
{
- page = compound_head(page);
BUG_ON(!PageSlab(page));
return (struct kmem_cache *)page->lru.next;
}
--
1.7.7.3
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