mm: replace strict_strtoul() with kstrtoul()

The use of strict_strtoul() is not preferred, because strict_strtoul() is
obsolete.  Thus, kstrtoul() should be used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/slub.c b/mm/slub.c
index e3ba1f2..51df827 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4420,7 +4420,7 @@
 	unsigned long order;
 	int err;
 
-	err = strict_strtoul(buf, 10, &order);
+	err = kstrtoul(buf, 10, &order);
 	if (err)
 		return err;
 
@@ -4448,7 +4448,7 @@
 	unsigned long min;
 	int err;
 
-	err = strict_strtoul(buf, 10, &min);
+	err = kstrtoul(buf, 10, &min);
 	if (err)
 		return err;
 
@@ -4468,7 +4468,7 @@
 	unsigned long objects;
 	int err;
 
-	err = strict_strtoul(buf, 10, &objects);
+	err = kstrtoul(buf, 10, &objects);
 	if (err)
 		return err;
 	if (objects && !kmem_cache_has_cpu_partial(s))
@@ -4784,7 +4784,7 @@
 	unsigned long ratio;
 	int err;
 
-	err = strict_strtoul(buf, 10, &ratio);
+	err = kstrtoul(buf, 10, &ratio);
 	if (err)
 		return err;