block: Fix discard alignment calculation and printing
authorMartin K. Petersen <martin.petersen@oracle.com>
Mon, 11 Jan 2010 08:21:48 +0000 (03:21 -0500)
committerJens Axboe <jens.axboe@oracle.com>
Mon, 11 Jan 2010 13:29:19 +0000 (14:29 +0100)
commitdd3d145d49c5816b79acc6761ebbd842bc50b0ee
tree107bdb2f46c6aa6bc482909d7ebdbb1da40b7b4f
parentfe0b393f2c0a0d23a9bc9ed7dc51a1ee511098bd
block: Fix discard alignment calculation and printing

Discard alignment reporting for partitions was incorrect.  Update to
match the algorithm used elsewhere.

The alignment can be negative (misaligned).  Fix format string
accordingly.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
block/genhd.c
include/linux/blkdev.h