On Wed, Sep 24, 2014 at 06:25:07PM +0200, Jan Kara wrote: > On Wed 24-09-14 22:04:30, Li Xi wrote: > > This patch adds ioctl interface for setting/getting project of ext4. > The patch looks good to me. I was just wondering whether it won't be > useful to add an ioctl() which isn't ext4 specific. We could just extend > ->setattr() to allow setting of project ID (most filesystems would just > return -EOPNOTSUPP but ext4 and xfs could do the right thing) and then call > ->setattr from the generic ioctl. That way userspace won't have to care > about filesystem type when setting project ID... What do others think? I've repeatedly said that these ext4 project ID patches should implement the same interfaces as XFS rather than creating a new set of incompatible, ext4 specific interfaces to do implement the same functionality. There is no good reason for forcing userspace to re-invent tools that already exist just to manage identical functionality in different filesystems. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
