[RFC PATCH 0/2] Introduce blkdev_issue_flush_no_wait()

[Anand Jain <anand.jain@oracle.com>]

BTRFS wanted a block device flush function which does not wait for
its completion, so that the flush for the next device can be called
in the same thread.

Here is a RFC patch to provide the function
'blkdev_issue_flush_no_wait()', which is based on the current device
flush function 'blkdev_issue_flush()', however it uses submit_bio()
instead of submit_bio_wait().

This patch is for review comments, will send out a final patch based
on the comments received.

Thanks, Anand

Anand Jain (2):
  block: Introduce blkdev_issue_flush_no_wait()
  btrfs: Use blkdev_issue_flush_no_wait()

 block/blk-flush.c      |  47 +++++++++++++++++++++
 fs/btrfs/disk-io.c     | 108 +++++++++++++++----------------------------------
 fs/btrfs/volumes.h     |   2 +-
 include/linux/blkdev.h |   8 ++++
 4 files changed, 88 insertions(+), 77 deletions(-)

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2.10.0