[PATCH 25/32] block: add operation field to request struct

From: Mike Christie This patch adds field to the request to store the REQ_OP, and has the block layer code set it up. The next patches will modify the other drivers to get/test the request->op field. We are still ORing the op into the cmd_flags. When I am done with the conversion, that will be

[PATCH 25/32] block: add operation field to request struct

From: Mike Christie This patch adds field to the request to store the REQ_OP, and has the block layer code set it up. The next patches will modify the other drivers to get/test the request->op field. We are still ORing the op into the cmd_flags. When I am done with the