hugetlbfs: lessen the impact of a deprecation warning

WARN_ONCE is a bit strong for a deprecation warning, given that it spews a
huge backtrace.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index d6cfac1..a5fe681 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -932,8 +932,7 @@
 	if (creat_flags == HUGETLB_SHMFS_INODE && !can_do_hugetlb_shm()) {
 		*user = current_user();
 		if (user_shm_lock(size, *user)) {
-			WARN_ONCE(1,
-			  "Using mlock ulimits for SHM_HUGETLB deprecated\n");
+			printk_once(KERN_WARNING "Using mlock ulimits for SHM_HUGETLB is deprecated\n");
 		} else {
 			*user = NULL;
 			return ERR_PTR(-EPERM);