On Sat, Dec 07, 2019 at 08:19:18AM -0700, Jens Axboe wrote: > On 12/7/19 5:01 AM, Greg KH wrote: > > On Wed, Dec 04, 2019 at 08:53:43AM -0700, Jens Axboe wrote: > >> Hi, > >> > >> We have an issue with drains not working due to missing copy of some > >> state, it's affecting 5.2/5.3/5.4. I'm attaching the patch for 5.4, > >> however the patch should apply to 5.2 and 5.3 as well by just removing > >> the last hunk. The last hunk is touching the linked code, which was > >> introduced with 5.4. > > > > Does this match up with a patch in Linus's tree anywhere? Why is this a > > stable-only thing? > > Because it was fixed as part of a cleanup series in mainline, before > anyone realized we had this issue. That removed the separate states > of ->index vs ->submit.sqe. That series is not something I was > comfortable putting into stable, hence the much simpler addition. > Here's the patch in the series that fixes the same issue: > > commit cf6fd4bd559ee61a4454b161863c8de6f30f8dca > Author: Pavel Begunkov <asml.silence@xxxxxxxxx> > Date: Mon Nov 25 23:14:39 2019 +0300 > > io_uring: inline struct sqe_submit Thanks for the info, now queued up! greg k-h
