cifs/ubifs: Fix shrinker API change fallout

Commit 1495f230fa77 ("vmscan: change shrinker API by passing
shrink_control struct") changed the API of ->shrink(), but missed ubifs
and cifs instances.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index 8f17006..21de1d6 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -74,8 +74,9 @@
  * Run idmap cache shrinker.
  */
 static int
-cifs_idmap_shrinker(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask)
+cifs_idmap_shrinker(struct shrinker *shrink, struct shrink_control *sc)
 {
+	int nr_to_scan = sc->nr_to_scan;
 	int nr_del = 0;
 	int nr_rem = 0;
 	struct rb_root *root;
diff --git a/fs/ubifs/shrinker.c b/fs/ubifs/shrinker.c
index 46961c0..ca953a9 100644
--- a/fs/ubifs/shrinker.c
+++ b/fs/ubifs/shrinker.c
@@ -277,8 +277,9 @@
 	return 0;
 }
 
-int ubifs_shrinker(struct shrinker *shrink, int nr, gfp_t gfp_mask)
+int ubifs_shrinker(struct shrinker *shrink, struct shrink_control *sc)
 {
+	int nr = sc->nr_to_scan;
 	int freed, contention = 0;
 	long clean_zn_cnt = atomic_long_read(&ubifs_clean_zn_cnt);
 
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 93d1412..a70d7b4 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1614,7 +1614,7 @@
 int ubifs_tnc_end_commit(struct ubifs_info *c);
 
 /* shrinker.c */
-int ubifs_shrinker(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask);
+int ubifs_shrinker(struct shrinker *shrink, struct shrink_control *sc);
 
 /* commit.c */
 int ubifs_bg_thread(void *info);