On Tue, Jul 29, 2025 at 08:21:34PM +0530, Kanchan Joshi wrote: > bio->bi_write_stream is not set by the filesystem code. > Use inode's write stream value to do that. Just passing it through is going to create problems. i.e. when the file system does it's own placement or reserves ids. We'll need an explicit intercept point between the user write stream and what does into the bio.