On 01/15/2017 03:12 AM, Paolo Valente wrote:

quoted

Il giorno 11 gen 2017, alle ore 22:39, Jens Axboe [off-list ref] ha scritto:

Another year, another posting of this patchset. The previous posting
was here:

https://www.spinics.net/lists/kernel/msg2406106.html

(yes, I've skipped v5, it was fixes on top of v4, not the rework).

I've reworked bits of this to get rid of the shadow requests, thanks
to Bart for the inspiration. The missing piece, for me, was the fact
that we have the tags->rqs[] indirection array already. I've done this
somewhat differently, though, by having the internal scheduler tag
map be allocated/torn down when an IO scheduler is attached or
detached. This also means that when we run without a scheduler, we
don't have to do double tag allocations, it'll work like before.

The patchset applies on top of 4.10-rc3, or can be pulled here:

git://git.kernel.dk/linux-block blk-mq-sched.6

Hi Jens,
I have checked this new version to find solutions to the apparent
errors, mistakes or just unclear parts (to me) that I have pointed out
before Christmas last year.  But I have found no changes related to
these problems.

As I have already written, I'm willing to try to fix those errors
myself, if they really are errors, but I would first need at least
some minimal initial feedback and guidance.  If needed, tell me how I
can help you get in sync again with these issues (sending my reports
again, sending a digest of them, ...).

Sorry Paolo, but focus has been on getting the framework in both
a mergeable and stable state, which it is now. I'll tend to BFQ
specific issues next week, so we can get those resolved as well.

Do you have a place where you have posted your in-progress
conversion?

-- 
Jens Axboe