[Bionic][PATCH 0/3] blk-mq scheduler fixes

Jose Ricardo Ziviani joserz at linux.vnet.ibm.com
Thu Mar 29 02:27:09 UTC 2018

Hello team,

We're currently facing an issue in blk-mq that requires the following
patches to be addressed. I explained the issue here
https://www.spinics.net/lists/linux-block/msg24016.html and it covers
the launchpads #1759723 and #1759722.

The test team has found it in PowerPC but I believe it affects other
archs as well.

I cherry-picked these patches based on Ubuntu-4.15.0-13.14. Please, let
me know if I missed something.

Thank you!

Jose Ricardo Ziviani

Christoph Hellwig (2):
  genirq/affinity: assign vectors to all possible CPUs
  blk-mq: simplify queue mapping & schedule with each possisble CPU

Ming Lei (1):
  blk-mq: turn WARN_ON in __blk_mq_run_hw_queue into printk

 block/blk-mq.c        | 41 ++++++++++++++++++++++++++++-------------
 kernel/irq/affinity.c | 30 +++++++++++++++---------------
 2 files changed, 43 insertions(+), 28 deletions(-)


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