[RFC/PATCH 0/2] Adding support for urgent requests handling

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This patch set adds support in block & elevator layers for handling
urgent requests.
Urgent request notification passed to underlying driver (eMMC for
example) and causes interruption of low priority current request in
order to execute the urgent one.
The interrupted request is inserted back to the scheduler's internal
data structures.

Tatyana Brokhman (2):
  block: Add support for reinsert a dispatched req
  block: Add API for urgent request handling

 block/blk-core.c         |   68 ++++++++++++++++++++++++++++++++++++++++++++-
 block/blk-settings.c     |   12 ++++++++
 block/blk.h              |   11 +++++++
 block/elevator.c         |   34 +++++++++++++++++++++++
 include/linux/blkdev.h   |    6 ++++
 include/linux/elevator.h |    8 +++++
 6 files changed, 137 insertions(+), 2 deletions(-)

-- 
1.7.6
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