On Thu, Dec 6, 2018 at 9:41 AM Mike Snitzer <snitzer@xxxxxxxxxx> wrote: > > Hey, > > This v4 addresses the compile issues on various archs when CONFIG_SMP > isn't set (by introducing appropriate wrappers in genhd.h) > > Testing with this v4 I was unable to reproduce the issue you reported > where iostat always reports 0 for avgqu-sz -- but please let me know > if you still see problems like that. Looks good to me, and also passes my testing. Dropped the mq special cases and used this in general, also works fine. I was hoping we could get rid of the tag iteration with this, but that still seems to be more efficient for blk-mq. But at least we're better off for stacked devices with this. -- Jens Axboe
