vmscan: change shrink_slab() interfaces by passing shrink_control

Consolidate the existing parameters to shrink_slab() into a new
shrink_control struct.  This is needed later to pass the same struct to
shrinkers.

Signed-off-by: Ying Han <yinghan@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Acked-by: Pavel Emelyanov <xemul@openvz.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 369b80e81416..341341b2b47b 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -239,7 +239,12 @@ void shake_page(struct page *p, int access)
         if (access) {
                 int nr;
                 do {
-                        nr = shrink_slab(1000, GFP_KERNEL, 1000);
+                        struct shrink_control shrink = {
+                                .gfp_mask = GFP_KERNEL,
+                                .nr_scanned = 1000,
+                        };
+
+                        nr = shrink_slab(&shrink, 1000);
                         if (page_count(p) == 1)
                                 break;
                 } while (nr > 10);