block: add blk_rq_aligned helper function

Browse source

This adds blk_rq_aligned helper function to see if alignment and
padding requirement is satisfied for DMA transfer. This also converts
blk_rq_map_kern and __blk_rq_map_user to use the helper function.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

...

This commit is contained in:

FUJITA Tomonori 2008-08-28 15:05:58 +09:00 • committed by Jens Axboe

parent 4d8ab62e08

commit 879040742c

2 changed files with 9 additions and 10 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

7

include/linux/blkdev.h

View file