mm: remove unncessary ret in page_referenced

Nobody uses ret variable. Remove it.

Link: http://lkml.kernel.org/r/1489555493-14659-2-git-send-email-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/rmap.c b/mm/rmap.c
index a19bd8b8ab0d5d16f245bebf7b734a3c7fe69ffd..4baf504e4213aff2cdbb5d7612c48a7ebb48fbcb 100644 (file)
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -812,7 +812,6 @@ int page_referenced(struct page *page,
                    struct mem_cgroup *memcg,
                    unsigned long *vm_flags)
 {
-       int ret;
        int we_locked = 0;
        struct page_referenced_arg pra = {
                .mapcount = total_mapcount(page),
@@ -846,7 +845,7 @@ int page_referenced(struct page *page,
                rwc.invalid_vma = invalid_page_referenced_vma;
        }
 
-       ret = rmap_walk(page, &rwc);
+       rmap_walk(page, &rwc);
        *vm_flags = pra.vm_flags;
 
        if (we_locked)