From 7af4c0932437f97938eef67e553c8d211f9edf33 Mon Sep 17 00:00:00 2001
From: Jesper Juhl <jj@chaosbits.net>
Date: Sat, 30 Oct 2010 15:56:54 +0200
Subject: [PATCH] percpu: zero memory more efficiently in
mm/percpu.c::pcpu_mem_alloc()
Don't do vmalloc() + memset() when vzalloc() will do.
tj: dropped unnecessary temp variable ptr.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
mm/percpu.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/mm/percpu.c b/mm/percpu.c
index efe816856a9d7..9e16d1c9ebd5e 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -293,12 +293,8 @@ 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);
- return ptr;
- }
+ else
+ return vzalloc(size);
}
/**
--
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