tree c1cb66965f987d782c5c6bc63826d2250caf8d18
parent 0f8087ecdeac921fc4920f1328f55c15080bc6aa
author Martin K. Petersen <martin.petersen@oracle.com> 1445447978 -0400
committer Jens Axboe <axboe@fb.com> 1445460159 -0600

block: Reduce the size of struct blk_integrity

The per-device properties in the blk_integrity structure were previously
unsigned short. However, most of the values fit inside a char. The only
exception is the data interval size and we can work around that by
storing it as a power of two.

This cuts the size of the dynamic portion of blk_integrity in half.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reported-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>