On Fri, Mar 11, 2022 at 12:18 PM Christoph Hellwig <hch@xxxxxx> wrote: > > On Tue, Mar 08, 2022 at 08:51:00PM +0530, Kanchan Joshi wrote: > > Since we do submission/completion in task, we can have this up. > > Add a bio-set for nvme as we need that for bio-cache. > > Well, passthrough I/O should just use kmalloced bios anyway, as there > is no need for the mempool to start with. Take a look at the existing > code in blk-map.c. Yes, the only reason to switch from kmalloc to bio-set was being able to use bio-cache. Towards the goal of matching peak perf of io_uring's block io path. Is it too bad to go down this route; Is there any different way to enable bio-cache for passthru. -- Kanchan
