On Tue, Jul 29, 2025 at 08:21:33PM +0530, Kanchan Joshi wrote: > Prepare for supporting per-inode write streams. > Part of the existing 32-bit hole is used for the new field. Bloating the inode for everyone for this is probably not a good idea. I.e. you'd probably want this in the file system specific inodes for file systems that can just do data placement.