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>

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>
Jesper Juhl · Tejun Heo
1 parent cf7d7e5a19
Showing 1 changed file with 2 additions and 6 deletions Side-by-side Diff
mm/percpu.c
@@ -293,12 +293,8 @@
  
 	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);
 }
  
 /**
...	...	@@ -293,12 +293,8 @@
293	293
294	294	if (size <= PAGE_SIZE)
295	295	return kzalloc(size, GFP_KERNEL);
296		- else {
297		- void *ptr = vmalloc(size);
298		- if (ptr)
299		- memset(ptr, 0, size);
300		- return ptr;
301		- }
	296	+ else
	297	+ return vzalloc(size);
302	298	}
303	299
304	300	/**