commit 94f6030ca792c57422f04a73e7a872d8325946d3
author Christoph Lameter <clameter@sgi.com> Tue Jul 17 04:03:29 2007 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> Tue Jul 17 10:23:02 2007 -0700
tree 0197f24d82b1706f1b0521f2cf68feeff64123df
parent 81cda6626178cd55297831296ba8ecedbfd8b52d

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>

block/ll_rw_blk.c

diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 11e4235..d7cadf3 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -1829,11 +1829,11 @@
 {
 	request_queue_t *q;
 
-	q = kmem_cache_alloc_node(requestq_cachep, gfp_mask, node_id);
+	q = kmem_cache_alloc_node(requestq_cachep,
+				gfp_mask | __GFP_ZERO, node_id);
 	if (!q)
 		return NULL;
 
-	memset(q, 0, sizeof(*q));
 	init_timer(&q->unplug_timer);
 
 	snprintf(q->kobj.name, KOBJ_NAME_LEN, "%s", "queue");