dquot: cleanup dquot initialize routine

Get rid of the initialize dquot operation - it is now always called from
the filesystem and if a filesystem really needs it's own (which none
currently does) it can just call into it's own routine directly.

Rename the now static low-level dquot_initialize helper to __dquot_initialize
and vfs_dq_init to dquot_initialize to have a consistent namespace.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 34f7cd0..04bf5d7 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -246,7 +246,7 @@
 			retval = remove_save_link_only(s, &save_link_key, 0);
 			continue;
 		}
-		vfs_dq_init(inode);
+		dquot_initialize(inode);
 
 		if (truncate && S_ISDIR(inode->i_mode)) {
 			/* We got a truncate request for a dir which is impossible.
@@ -622,7 +622,6 @@
 static int reiserfs_quota_on(struct super_block *, int, int, char *, int);
 
 static const struct dquot_operations reiserfs_quota_operations = {
-	.initialize = dquot_initialize,
 	.write_dquot = reiserfs_write_dquot,
 	.acquire_dquot = reiserfs_acquire_dquot,
 	.release_dquot = reiserfs_release_dquot,