treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks

Don't emit OOM warnings when k.alloc calls fail when
there there is a v.alloc immediately afterwards.

Converted a kmalloc/vmalloc with memset to kzalloc/vzalloc.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
index ef53ab8..ddd73cb 100644
--- a/net/sched/sch_choke.c
+++ b/net/sched/sch_choke.c
@@ -438,7 +438,8 @@
 	if (mask != q->tab_mask) {
 		struct sk_buff **ntab;
 
-		ntab = kcalloc(mask + 1, sizeof(struct sk_buff *), GFP_KERNEL);
+		ntab = kcalloc(mask + 1, sizeof(struct sk_buff *),
+			       GFP_KERNEL | __GFP_NOWARN);
 		if (!ntab)
 			ntab = vzalloc((mask + 1) * sizeof(struct sk_buff *));
 		if (!ntab)