[dm-devel] clean up the chunk_sizehandling helpers a little

[Christoph Hellwig]

Hi Jens,

this series cleans up a bunch of block layer helpers related to the chunk
size.

Diffstat:
 block/blk-merge.c      |   28 ++++++++++++++++------------
 block/blk.h            |   13 +++++++++++++
 drivers/md/dm.c        |   17 ++++++-----------
 include/linux/blkdev.h |   39 +++++++--------------------------------
 4 files changed, 42 insertions(+), 55 deletions(-)