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

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Date:	Mon, 26 Nov 2007 19:23:51 +0900
From:	"Joonwoo Park" <joonwpark81@...il.com>
To:	"'Patrick McHardy'" <kaber@...sh.net>
Cc:	<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 1/4] xfrm_hash: kmalloc + memset conversion to kzalloc

2007/11/26, Patrick McHardy <kaber@...sh.net>:
> 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 <joonwpark81@...il.com>

---
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;
 }
 
---

-
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