Messages in this thread Patch in this message | | | Date | Fri, 29 Oct 2010 23:58:39 +0200 (CEST) | From | Jesper Juhl <> | Subject | [PATCH] Zero memory more efficiently in mm/percpu.c::pcpu_mem_alloc() |
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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/ Plain text mails only, please http://www.expita.com/nomime.html Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html
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