[xenial:linux-azure][PATCH 00/15] Bug #1848739 - [linux-azure] Patch to prevent possible data corruption

[Marcelo Henrique Cerri]

Fix requested by msft as bug description.

All patches where picked from upstream with small backported changes.

Bart Van Assche (1):
  blk-mq: Rename blk_mq_request_direct_issue() into
    blk_mq_request_issue_directly()

Jens Axboe (4):
  blk-mq: move hctx lock/unlock into a helper
  blk-mq: don't queue more if we get a busy return
  blk-mq: fix corruption with direct issue
  blk-mq: punt failed direct issue to dispatch list

Mike Snitzer (2):
  blk-mq: factor out a few helpers from __blk_mq_try_issue_directly
  blk-mq-sched: remove unused 'can_block' arg from
    blk_mq_sched_insert_request

Ming Lei (7):
  blk-mq: quiesce queue during switching io sched and updating
    nr_requests
  blk-mq: improve DM's blk-mq IO merging via blk_insert_cloned_request
    feedback
  blk-mq: don't dispatch request in blk_mq_request_direct_issue if queue
    is busy
  blk-mq: introduce BLK_STS_DEV_RESOURCE
  blk-mq: dequeue request one by one from sw queue if hctx is busy
  blk-mq: issue directly if hw queue isn't busy in case of 'none'
  blk-mq: fail the request in case issue failure

Yufen Yu (1):
  dm mpath: fix missing call of path selector type->end_io

 block/blk-core.c             |   4 +-
 block/blk-exec.c             |   2 +-
 block/blk-mq-debugfs.c       |   9 ++
 block/blk-mq-sched.c         |  26 ++--
 block/blk-mq-sched.h         |   2 +-
 block/blk-mq.c               | 258 +++++++++++++++++++++++++++--------
 block/blk-mq.h               |   5 +
 block/elevator.c             |   2 +
 drivers/block/null_blk.c     |   2 +-
 drivers/block/virtio_blk.c   |   2 +-
 drivers/block/xen-blkfront.c |   2 +-
 drivers/md/dm-rq.c           |  20 ++-
 drivers/nvme/host/fc.c       |  12 +-
 drivers/scsi/scsi_lib.c      |   6 +-
 include/linux/blk-mq.h       |   3 +-
 include/linux/blk_types.h    |  18 +++
 16 files changed, 281 insertions(+), 92 deletions(-)

-- 
2.20.1