On 11/09, Jens Axboe wrote: > On 11/9/21 9:39 AM, Christoph Hellwig wrote: > > On Mon, Nov 08, 2021 at 06:13:36PM -0800, Jaegeuk Kim wrote: > >> This patch adds a way to attach HIPRI by expanding the existing sysfs's > >> data_io_flag. User can measure IO performance by enabling it. > > > > NAK. This flag should only be used when explicitly specified by > > the submitter of the I/O. > > Yes, this cannot be set in the middle for a multitude of reasons. I wonder > if we should add a comment to that effect near the definition of it. Not surprising. I was wondering we can add this for testing purpose only. Btw, is there a reasonable way that filesystem can use IO polling? > > -- > Jens Axboe
