[PATCH] Zero memory more efficiently in mm/percpu.c::pcpu_mem_alloc()

[Jesper Juhl <jj@chaosbits.net>]

Don't do vmalloc() + memset() when vzalloc() will do.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
---
 percpu.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/percpu.c b/mm/percpu.c
index efe8168..8d75223 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -294,9 +294,7 @@ static void *pcpu_mem_alloc(size_t size)
 	if (size <= PAGE_SIZE)
 		return kzalloc(size, GFP_KERNEL);
 	else {
-		void *ptr = vmalloc(size);
-		if (ptr)
-			memset(ptr, 0, size);
+		void *ptr = vzalloc(size);
 		return ptr;
 	}
 }


-- 
Jesper Juhl <jj@chaosbits.net>             http://www.chaosbits.net/
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