On Tue, Jun 03, 2025 at 07:22:18PM +0530, Anuj gupta wrote: > > A mount option is about the worst possible interface for behavior > > that depends on file system implementation and possibly hardware > > chacteristics. This needs to be set by the file systems, possibly > > using generic helpers using hardware information. > > Right, that makes sense. Instead of using a mount option, we can > introduce generic helpers to initialize multiple writeback contexts > based on underlying hardware characteristics — e.g., number of CPUs or > NUMA topology. Filesystems like XFS and EXT4 can then call these helpers > during mount to opt into parallel writeback in a controlled way. Yes. A mount option might still be useful to override this default, but it should not be needed for the normal use case.
