From: Namhyung Kim <namhyung@gmail.com>
Date: Wed, 29 Sep 2010 12:02:13 +0000 (+0900)
Subject: slub: Fix signedness warnings
X-Git-Tag: v2.6.37-rc1~141^2~7
X-Git-Url: https://bbs.cooldavid.org/git/?p=net-next-2.6.git;a=commitdiff_plain;h=a5dd5c117cbf620378d693963ffc42239297fac4

slub: Fix signedness warnings

The bit-ops routines require its arg to be a pointer to unsigned long.
This leads sparse to complain about different signedness as follows:

 mm/slub.c:2425:49: warning: incorrect type in argument 2 (different signedness)
 mm/slub.c:2425:49:    expected unsigned long volatile *addr
 mm/slub.c:2425:49:    got long *map

Acked-by: Christoph Lameter <cl@linux.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---

diff --git a/mm/slub.c b/mm/slub.c
index aad00ba486f..ac236b1ced1 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2433,9 +2433,8 @@ static void list_slab_objects(struct kmem_cache *s, struct page *page,
 #ifdef CONFIG_SLUB_DEBUG
 	void *addr = page_address(page);
 	void *p;
-	long *map = kzalloc(BITS_TO_LONGS(page->objects) * sizeof(long),
-			    GFP_ATOMIC);
-
+	unsigned long *map = kzalloc(BITS_TO_LONGS(page->objects) *
+				     sizeof(long), GFP_ATOMIC);
 	if (!map)
 		return;
 	slab_err(s, page, "%s", text);
@@ -3660,7 +3659,7 @@ static int add_location(struct loc_track *t, struct kmem_cache *s,
 
 static void process_slab(struct loc_track *t, struct kmem_cache *s,
 		struct page *page, enum track_item alloc,
-		long *map)
+		unsigned long *map)
 {
 	void *addr = page_address(page);
 	void *p;