On Tue, Jun 06, 2017 at 10:03:12AM -0600, Jens Axboe wrote: > On 06/06/2017 09:21 AM, Ming Lei wrote: > > Hi, > > > > There is one big issue in current blk_mq_quiesce_queue(): > > > > - in case of direct issue or BLK_MQ_S_START_ON_RUN, dispatch won't > > be prevented after blk_mq_quiesce_queue() is returned. > > > > > > The 1st two patches fix two problems in direct issue, please consider > > it for v4.12. > > > > The other 10 patches improves blk_mq_quiesce_queue(), and > > make is easy to use, and avoid race between queue restart and > > quiescing. These 10 patches should be for v4.13. > > I've added 1-2 for 4.12, I'll review the rest for 4.13 when some > cycles free up. Hi Jens, If you are fine with 3-12, could you consider it for v4.13? The fixes on uses of blk_mq_tagset_busy_iter() depends on this patchset. Thanks, Ming
