Slab allocators: Replace explicit zeroing with __GFP_ZERO
kmalloc_node() and kmem_cache_alloc_node() were not available in a zeroing
variant in the past. But with __GFP_ZERO it is possible now to do zeroing
while allocating.
Use __GFP_ZERO to remove the explicit clearing of memory via memset whereever
we can.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/timer.c b/kernel/timer.c
index 1258371..b7792fb 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1221,7 +1221,8 @@
/*
* The APs use this path later in boot
*/
- base = kmalloc_node(sizeof(*base), GFP_KERNEL,
+ base = kmalloc_node(sizeof(*base),
+ GFP_KERNEL | __GFP_ZERO,
cpu_to_node(cpu));
if (!base)
return -ENOMEM;
@@ -1232,7 +1233,6 @@
kfree(base);
return -ENOMEM;
}
- memset(base, 0, sizeof(*base));
per_cpu(tvec_bases, cpu) = base;
} else {
/*
