fs: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index de3b31d..8421cea 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c
@@ -92,7 +92,7 @@
 
 	root = d_alloc_root(inode);
 	if (!root) {
-		pr_debug("%s: could not get root dentry!\n",__FUNCTION__);
+		pr_debug("%s: could not get root dentry!\n",__func__);
 		iput(inode);
 		return -ENOMEM;
 	}