Hi Greg. I also have 4.14 and 4.9, I'll send them on for comparison. I will try 4.4 but, as one call site doesn't exist and the other didn't have any locking to start with, I'd like to try to reproduce the issue first. I should have some spare time for this soon. Giuilano. On Fri, 3 Apr 2020 at 10:20, Greg KH <greg@xxxxxxxxx> wrote: > > On Wed, Apr 01, 2020 at 05:47:02PM +0000, Giuliano Procida wrote: > > This issue was found in 4.14 and is present in earlier kernels. > > > > Please backport > > > > f5bbbbe4d635 blk-mq: sync the update nr_hw_queues with > > blk_mq_queue_tag_busy_iter > > 530ca2c9bd69 blk-mq: Allow blocking queue tag iter callbacks > > > > onto the stable branches that don't have these. The second is a fix > > for the first. Thank you. > > > > 4.19.y and later - commits already present > > 4.14.y - f5bbbbe4d635 doesn't patch cleanly but it's still > > straightforward, just drop the comment and code mentioning switching > > to 'none' in the trailing context > > 4.9.y - ditto > > 4.4.y - there was a refactoring of the code in commit > > 0bf6cd5b9531bcc29c0a5e504b6ce2984c6fd8d8 making this non-trivial > > 3.16.y - ditto > > > > I am happy to try to produce clean patches, but it may be a day or so. > > I have done this for 4.14.y and 4.9.y, can you please provide a backport > for 4.4.y that I can queue up? > > thanks, > > greg k-h
