[PATCH 17/32] block: add operation field to bio struct

From: Mike Christie This patch adds field to the bio to store the REQ_OP, and it has the block layer code set it. The next patches will modify the other drivers and filesystems to also set the bi_op. We are still ORing the op into the bi_rw. When I am done with the conversion, that will be

[PATCH 17/32] block: add operation field to bio struct

From: Mike Christie This patch adds field to the bio to store the REQ_OP, and it has the block layer code set it. The next patches will modify the other drivers and filesystems to also set the bi_op. We are still ORing the op into the bi_rw. When I am done with the