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>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index cc5801399467..5a4c5ea12f89 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1073,14 +1073,14 @@ static int init_irq (ide_hwif_t *hwif)
                 hwgroup->hwif->next = hwif;
                 spin_unlock_irq(&ide_lock);
         } else {
-                hwgroup = kmalloc_node(sizeof(ide_hwgroup_t), GFP_KERNEL,
+                hwgroup = kmalloc_node(sizeof(ide_hwgroup_t),
+                                        GFP_KERNEL | __GFP_ZERO,
                                         hwif_to_node(hwif->drives[0].hwif));
                 if (!hwgroup)
                         goto out_up;
 
                 hwif->hwgroup = hwgroup;
 
-                memset(hwgroup, 0, sizeof(ide_hwgroup_t));
                 hwgroup->hwif     = hwif->next = hwif;
                 hwgroup->rq       = NULL;
                 hwgroup->handler  = NULL;