block: don't honor chunk sizes for data-less IO
authorJens Axboe <axboe@fb.com>
Fri, 29 May 2015 19:11:32 +0000 (13:11 -0600)
committerJens Axboe <axboe@fb.com>
Fri, 29 May 2015 19:11:32 +0000 (13:11 -0600)
commite548ca4ee4595f65b262661d166310ad8a149bec
treef95e59f4a7694ba9e0a6a866da4e978c0c958c71
parentbeefa6ba7bf304d3de3a02cb7366fb0a7d6b27ab
block: don't honor chunk sizes for data-less IO

We don't need to honor chunk sizes for IO that doesn't carry any
data.

Signed-off-by: Jens Axboe <axboe@fb.com>
include/linux/blkdev.h