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Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block

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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
This commit is contained in:
Linus Torvalds
2015-11-10 17:23:49 -08:00
parent 01504f5e9e c1c534609f
commit 3419b45039
33 changed files with 287 additions and 91 deletions
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3
arch/xtensa/platforms/iss/simdisk.c
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@@ -101,7 +101,7 @@ static void simdisk_transfer(struct simdisk *dev, unsigned long sector,
spin_unlock(&dev->lock);
}
static void simdisk_make_request(struct request_queue *q, struct bio *bio)
static blk_qc_t simdisk_make_request(struct request_queue *q, struct bio *bio)
{
struct simdisk *dev = q->queuedata;
struct bio_vec bvec;
@@ -119,6 +119,7 @@ static void simdisk_make_request(struct request_queue *q, struct bio *bio)
}
bio_endio(bio);
return BLK_QC_T_NONE;
}
static int simdisk_open(struct block_device *bdev, fmode_t mode)