On Tue, Oct 01, 2019 at 07:02:45PM +0200, gregkh@linuxfoundation.org wrote:
The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
I saw that it was also dropped from 5.3/5.2 for build errors. To resolve those I took 226b4fc75c78 ("blk-mq: add callback of .cleanup_rq") which is also tagged for stable.
For 4.19 there were some context changes due to the removal of the legacy IO code (6a23e05c2fe3c ("dm: remove legacy request-based IO path") et al).
-- Thanks, Sasha