[PATCH] Split struct request ->flags into two parts

Right now ->flags is a bit of a mess: some are request types, and
others are just modifiers. Clean this up by splitting it into
->cmd_type and ->cmd_flags. This allows introduction of generic
Linux block message types, useful for sending generic Linux commands
to block devices.

Signed-off-by: Jens Axboe <axboe@suse.de>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c
index 1ddc2fb429d5..eaba81bf2eca 100644
--- a/drivers/message/i2o/i2o_block.c
+++ b/drivers/message/i2o/i2o_block.c
@@ -390,9 +390,9 @@ static int i2o_block_prep_req_fn(struct request_queue *q, struct request *req)
         }
 
         /* request is already processed by us, so return */
-        if (req->flags & REQ_SPECIAL) {
+        if (blk_special_request(req)) {
                 osm_debug("REQ_SPECIAL already set!\n");
-                req->flags |= REQ_DONTPREP;
+                req->cmd_flags |= REQ_DONTPREP;
                 return BLKPREP_OK;
         }
 
@@ -411,7 +411,8 @@ static int i2o_block_prep_req_fn(struct request_queue *q, struct request *req)
                 ireq = req->special;
 
         /* do not come back here */
-        req->flags |= REQ_DONTPREP | REQ_SPECIAL;
+        req->cmd_type = REQ_TYPE_SPECIAL;
+        req->cmd_flags |= REQ_DONTPREP;
 
         return BLKPREP_OK;
 };