vfs: Use lowercase names of quota functions

Use lowercase names of quota functions instead of old uppercase ones.

Signed-off-by: Jan Kara <jack@suse.cz>
CC: Alexander Viro <viro@zeniv.linux.org.uk>

fs/inode.c

diff --git a/fs/inode.c b/fs/inode.c
index 826fb0b..bb81bd5 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -284,7 +284,7 @@
 	BUG_ON(!(inode->i_state & I_FREEING));
 	BUG_ON(inode->i_state & I_CLEAR);
 	inode_sync_wait(inode);
-	DQUOT_DROP(inode);
+	vfs_dq_drop(inode);
 	if (inode->i_sb->s_op->clear_inode)
 		inode->i_sb->s_op->clear_inode(inode);
 	if (S_ISBLK(inode->i_mode) && inode->i_bdev)
@@ -1158,7 +1158,7 @@
 	if (op->delete_inode) {
 		void (*delete)(struct inode *) = op->delete_inode;
 		if (!is_bad_inode(inode))
-			DQUOT_INIT(inode);
+			vfs_dq_init(inode);
 		/* Filesystems implementing their own
 		 * s_op->delete_inode are required to call
 		 * truncate_inode_pages and clear_inode()