[PATCHv4 0/3] scsi timeout handling updates

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The iterative update to the previous version taking into account review
comments.

Background:

The main objective is to remove the generic block layer's lock prefix
currently required to transition a request to its completed state by
shifting that expense to lower level drivers that actually need it,
and removing the software layering violation that was required to use
that mechnaism.

Changes since v3:

  The complete state is moved to its own field separate from the
  non-atomic scsi_cmnd "flags" field.

  Code comments added to describe the more obscure handling for fake
  timeout injection.

Keith Busch (3):
  blk-mq: Return true if request was completed
  scsi: Do not rely on blk-mq for double completions
  blk-mq: Simplify request completion state

 block/blk-mq.c            |  9 ++++-----
 drivers/scsi/scsi_error.c | 22 +++++++++++-----------
 drivers/scsi/scsi_lib.c   | 13 ++++++++++++-
 include/linux/blk-mq.h    | 16 +---------------
 include/scsi/scsi_cmnd.h  |  4 ++++
 5 files changed, 32 insertions(+), 32 deletions(-)

-- 
2.14.4




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