On Thu, Mar 10, 2022 at 2:04 PM Christoph Hellwig <hch@xxxxxx> wrote: > > On Tue, Mar 08, 2022 at 08:50:58PM +0530, Kanchan Joshi wrote: > > From: Jens Axboe <axboe@xxxxxxxxx> > > > > Add support to use plugging if it is enabled, else use default path. > > The subject and this comment don't really explain what is done, and > also don't mention at all why it is done. Missed out, will fix up. But plugging gave a very good hike to IOPS. Especially while comparing this with io-uring's block-io path that keeps .plug enabled. Patch 9 (that enables .plug for uring-cmd) and this goes hand in hand.