• Linus Torvalds's avatar
    Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block · 3419b450
    Linus Torvalds authored
    Pull block IO poll support from Jens Axboe:
     "Various groups have been doing experimentation around IO polling for
      (really) fast devices.  The code has been reviewed and has been
      sitting on the side for a few releases, but this is now good enough
      for coordinated benchmarking and further experimentation.
      Currently O_DIRECT sync read/write are supported.  A framework is in
      the works that allows scalable stats tracking so we can auto-tune
      this.  And we'll add libaio support as well soon.  Fow now, it's an
      opt-in feature for test purposes"
    * 'for-4.4/io-poll' of git://git.kernel.dk/linux-block:
      direct-io: be sure to assign dio->bio_bdev for both paths
      directio: add block polling support
      NVMe: add blk polling support
      block: add block polling support
      blk-mq: return tag/queue combo in the make_request_fn handlers
      block: change ->make_request_fn() and users to return a queue cookie
direct-io.c 38.1 KB