On 7/16/19 2:19 PM, Josef Bacik wrote: > This is the patch series to address the hang we saw in production because of > missed wakeups, and the other issues that Oleg noticed while reviewing the code. > > v2->v3: > - apparently I don't understand what READ/WRITE_ONCE does > - set ourselves to TASK_UNINTERRUPTIBLE on wakeup just in case > - add a comment about why we don't need a mb for the first data.token check > which I'm sure Oleg will tell me is wrong and I'll have to send a v4 > > v1->v2: > - rename wq_has_multiple_sleepers to wq_has_single_sleeper > - fix the check for has_sleepers in the missed wake-ups patch > - fix the barrier issues around got_token that Oleg noticed > - dropped the has_sleepers reset that Oleg noticed we didn't need Thanks Josef, applied for 5.3. -- Jens Axboe
