Subject: RE: [PATCH 1/4] xfrm_hash: kmalloc + memset conversion to kzalloc

From: "Joonwoo Park" <[email-masked]>
Date: Mon, 26 Nov 2007 19:23:51 +0900

2007/11/26, Patrick McHardy <[email-masked]>:
> How about also switching vmalloc/get_free_pages to GFP_ZERO
> and getting rid of the memset entirely while you're at it?
> 

xfrm_hash: kmalloc + memset conversion to kzalloc
fix to avoid memset entirely.
Thanks Patrick.

Thanks.
Joonwoo

Signed-off-by: Joonwoo Park <[email-masked]>

---
diff --git a/net/xfrm/xfrm_hash.c b/net/xfrm/xfrm_hash.c
index 55ab579..a2023ec 100644
--- a/net/xfrm/xfrm_hash.c
+++ b/net/xfrm/xfrm_hash.c
@@ -17,17 +17,14 @@ struct hlist_head *xfrm_hash_alloc(unsigned int sz)
 	struct hlist_head *n;
 
 	if (sz <= PAGE_SIZE)
-		n = kmalloc(sz, GFP_KERNEL);
+		n = kzalloc(sz, GFP_KERNEL);
 	else if (hashdist)
-		n = __vmalloc(sz, GFP_KERNEL, PAGE_KERNEL);
+		n = __vmalloc(sz, GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL);
 	else
 		n = (struct hlist_head *)
-			__get_free_pages(GFP_KERNEL | __GFP_NOWARN,
+			__get_free_pages(GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO,
 					 get_order(sz));
 
-	if (n)
-		memset(n, 0, sz);
-
 	return n;
 }
 
---