mm/mempolicy.c: mpol_equal(): use bool

mpol_equal() logically returns a boolean.  Use a bool type to slightly
improve readability.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Stephen Wilson <wilsons@start.ca>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 12 insertions, 12 deletions

diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 7978eec1b7d9..7c727a90d70d 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -164,11 +164,11 @@ static inline void mpol_get(struct mempolicy *pol)
                 atomic_inc(&pol->refcnt);
 }
 
-extern int __mpol_equal(struct mempolicy *a, struct mempolicy *b);
-static inline int mpol_equal(struct mempolicy *a, struct mempolicy *b)
+extern bool __mpol_equal(struct mempolicy *a, struct mempolicy *b);
+static inline bool mpol_equal(struct mempolicy *a, struct mempolicy *b)
 {
         if (a == b)
-                return 1;
+                return true;
         return __mpol_equal(a, b);
 }
 
@@ -257,9 +257,9 @@ static inline int vma_migratable(struct vm_area_struct *vma)
 
 struct mempolicy {};
 
-static inline int mpol_equal(struct mempolicy *a, struct mempolicy *b)
+static inline bool mpol_equal(struct mempolicy *a, struct mempolicy *b)
 {
-        return 1;
+        return true;
 }
 
 static inline void mpol_put(struct mempolicy *p)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index c3fdbcb17658..e3d58f088466 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1983,28 +1983,28 @@ struct mempolicy *__mpol_cond_copy(struct mempolicy *tompol,
 }
 
 /* Slow path of a mempolicy comparison */
-int __mpol_equal(struct mempolicy *a, struct mempolicy *b)
+bool __mpol_equal(struct mempolicy *a, struct mempolicy *b)
 {
         if (!a || !b)
-                return 0;
+                return false;
         if (a->mode != b->mode)
-                return 0;
+                return false;
         if (a->flags != b->flags)
-                return 0;
+                return false;
         if (mpol_store_user_nodemask(a))
                 if (!nodes_equal(a->w.user_nodemask, b->w.user_nodemask))
-                        return 0;
+                        return false;
 
         switch (a->mode) {
         case MPOL_BIND:
                 /* Fall through */
         case MPOL_INTERLEAVE:
-                return nodes_equal(a->v.nodes, b->v.nodes);
+                return !!nodes_equal(a->v.nodes, b->v.nodes);
         case MPOL_PREFERRED:
                 return a->v.preferred_node == b->v.preferred_node;
         default:
                 BUG();
-                return 0;
+                return false;
         }
 }