On Fri, May 10, 2024 at 11:50:28AM +0200, Andrey Albershteyn wrote: > On 2024-05-09 21:58:34, Christoph Hellwig wrote: > > On Thu, May 09, 2024 at 05:15:00PM +0200, Andrey Albershteyn wrote: > > > XFS has project quotas which could be attached to a directory. All > > > new inodes in these directories inherit project ID. > > > > > > The project is created from userspace by opening and calling > > > FS_IOC_FSSETXATTR on each inode. This is not possible for special > > > files such as FIFO, SOCK, BLK etc. as opening them return special > > > inode from VFS. Therefore, some inodes are left with empty project > > > ID. > > > > > > This patch adds new XFS ioctl which allows userspace, such as > > > xfs_quota, to set project ID on special files. This will let > > > xfs_quota set ID on all inodes and also reset it when project is > > > removed. > > > > Having these ioctls in XFS while the non-AT ones are in the VFS feels > > really odd. What is the reason to make them XFS-specific? > > > > I just don't see other uses for these in other fs, and in xfs it's > just for project quota. So, I put them in XFS. But based on other > feedback I will move them to VFS. Yeah, ext4 has project quota now too. ;) --D > -- > - Andrey > >
