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

scritto:

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Another year, another posting of this patchset. The previous posting
was here:
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https://www.spinics.net/lists/kernel/msg2406106.html
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(yes, I've skipped v5, it was fixes on top of v4, not the rework).
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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.
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The patchset applies on top of 4.10-rc3, or can be pulled here:
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git://git.kernel.dk/linux-block blk-mq-sched.6
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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, ...).

Thanks,
Paolo

block/Kconfig.iosched    |   50 ++++
block/Makefile           |    3=20
block/blk-core.c         |   19 -
block/blk-exec.c         |    3=20
block/blk-flush.c        |   15 -
block/blk-ioc.c          |   12=20
block/blk-merge.c        |    4=20
block/blk-mq-sched.c     |  354 +++++++++++++++++++++++++++++
block/blk-mq-sched.h     |  157 ++++++++++++
block/blk-mq-sysfs.c     |   13 +
block/blk-mq-tag.c       |   58 ++--
block/blk-mq-tag.h       |    4=20
block/blk-mq.c           |  413 +++++++++++++++++++---------------
block/blk-mq.h           |   40 +++
block/blk-tag.c          |    1=20
block/blk.h              |   26 +-
block/cfq-iosched.c      |    2=20
block/deadline-iosched.c |    2=20
block/elevator.c         |  247 +++++++++++++++-----
block/mq-deadline.c      |  569 =

+++++++++++++++++++++++++++++++++++++++++++++++

block/noop-iosched.c     |    2=20
drivers/nvme/host/pci.c  |    1=20
include/linux/blk-mq.h   |    9=20
include/linux/blkdev.h   |    6=20
include/linux/elevator.h |   36 ++
25 files changed, 1732 insertions(+), 314 deletions(-)
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--=20
Jens Axboe
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