• Linus Torvalds's avatar
    Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block · 36869cb9
    Linus Torvalds authored
    Pull block layer updates from Jens Axboe:
     "This is the main block pull request this series. Contrary to previous
      release, I've kept the core and driver changes in the same branch. We
      always ended up having dependencies between the two for obvious
      reasons, so makes more sense to keep them together. That said, I'll
      probably try and keep more topical branches going forward, especially
      for cycles that end up being as busy as this one.
    
      The major parts of this pull request is:
    
       - Improved support for O_DIRECT on block devices, with a small
         private implementation instead of using the pig that is
         fs/direct-io.c. From Christoph.
    
       - Request completion tracking in a scalable fashion. This is utilized
         by two components in this pull, the new hybrid polling and the
         writeback queue throttling code.
    
       - Improved support for polling with O_DIRECT, adding a hybrid mode
         that combines pure polling with an initial sleep. From me.
    
       - Support for automatic throttling of writeback queues on the block
         side. This uses feedback from the device completion latencies to
         scale the queue on the block side up or down. From me.
    
       - Support from SMR drives in the block layer and for SD. From Hannes
         and Shaun.
    
       - Multi-connection support for nbd. From Josef.
    
       - Cleanup of request and bio flags, so we have a clear split between
         which are bio (or rq) private, and which ones are shared. From
         Christoph.
    
       - A set of patches from Bart, that improve how we handle queue
         stopping and starting in blk-mq.
    
       - Support for WRITE_ZEROES from Chaitanya.
    
       - Lightnvm updates from Javier/Matias.
    
       - Supoort for FC for the nvme-over-fabrics code. From James Smart.
    
       - A bunch of fixes from a whole slew of people, too many to name
         here"
    
    * 'for-4.10/block' of git://git.kernel.dk/linux-block: (182 commits)
      blk-stat: fix a few cases of missing batch flushing
      blk-flush: run the queue when inserting blk-mq flush
      elevator: make the rqhash helpers exported
      blk-mq: abstract out blk_mq_dispatch_rq_list() helper
      blk-mq: add blk_mq_start_stopped_hw_queue()
      block: improve handling of the magic discard payload
      blk-wbt: don't throttle discard or write zeroes
      nbd: use dev_err_ratelimited in io path
      nbd: reset the setup task for NBD_CLEAR_SOCK
      nvme-fabrics: Add FC LLDD loopback driver to test FC-NVME
      nvme-fabrics: Add target support for FC transport
      nvme-fabrics: Add host support for FC transport
      nvme-fabrics: Add FC transport LLDD api definitions
      nvme-fabrics: Add FC transport FC-NVME definitions
      nvme-fabrics: Add FC transport error codes to nvme.h
      Add type 0x28 NVME type code to scsi fc headers
      nvme-fabrics: patch target code in prep for FC transport support
      nvme-fabrics: set sqe.command_id in core not transports
      parser: add u64 number parser
      nvme-rdma: align to generic ib_event logging helper
      ...
    36869cb9
md.c 232 KB