xfs: Propagate dentry down to inode_change_ok()

To avoid clearing of capabilities or security related extended
attributes too early, inode_change_ok() will need to take dentry instead
of inode. Propagate dentry down to functions calling inode_change_ok().
This is rather straightforward except for xfs_set_mode() function which
does not have dentry easily available. Luckily that function does not
call inode_change_ok() anyway so we just have to do a little dance with
function prototypes.

Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/xfs/xfs_inode.c

@@ -1710,7 +1710,7 @@ xfs_inactive_truncate(
 	/*
 	 * Log the inode size first to prevent stale data exposure in the event
 	 * of a system crash before the truncate completes. See the related
-	 * comment in xfs_setattr_size() for details.
+	 * comment in xfs_vn_setattr_size() for details.
 	 */
 	ip->i_d.di_size = 0;
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);