On Thu, Nov 02, 2017 at 11:24:31PM +0800, Ming Lei wrote: > Hi Jens, > > This patchset avoids to allocate driver tag beforehand for flush rq > in case of I/O scheduler, then flush rq isn't treated specially > wrt. get/put driver tag, code gets cleanup much, such as, > reorder_tags_to_front() is removed, and we needn't to worry > about request order in dispatch list for avoiding I/O deadlock. > > 'dbench -t 30 -s 64' has been run on different devices(shared tag, > multi-queue, singele queue, ...), and no issues are observed, > even very low queue depth test are run, debench still works well. > > Please consider it for V4.15, thanks! Hi Jens, As we discussed before, this patch is a good cleanup on handling flush request, could you share your opinion on V3? thanks, Ming
