security/keys/keyctl.c: suppress memory allocation failure warning

This allocation may be large.  The code is probing to see if it will
succeed and if not, it falls back to vmalloc().  We should suppress any
page-allocation failure messages when the fallback happens.
Reported-by: NDave Jones <davej@redhat.com>
Acked-by: NDavid Howells <dhowells@redhat.com>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

security/keys/keyctl.c

@@ -84,7 +84,7 @@ SYSCALL_DEFINE5(add_key, const char __user *, _type,
 	vm = false;
 	if (_payload) {
 		ret = -ENOMEM;
-		payload = kmalloc(plen, GFP_KERNEL);
+		payload = kmalloc(plen, GFP_KERNEL | __GFP_NOWARN);
 		if (!payload) {
 			if (plen <= PAGE_SIZE)
 				goto error2;