block: introduce blk_rq_is_passthrough
This can be used to check for fs vs non-fs requests and basically
removes all knowledge of BLOCK_PC specific from the block layer,
as well as preparing for removing the cmd_type field in struct request.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/block/blk-core.c b/block/blk-core.c
index 9582952..4443108 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2506,10 +2506,10 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
* TODO: tj: This is too subtle. It would be better to let
* low level drivers do what they see fit.
*/
- if (req->cmd_type == REQ_TYPE_FS)
+ if (!blk_rq_is_passthrough(req))
req->errors = 0;
- if (error && req->cmd_type == REQ_TYPE_FS &&
+ if (error && !blk_rq_is_passthrough(req) &&
!(req->rq_flags & RQF_QUIET)) {
char *error_type;
@@ -2581,7 +2581,7 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
req->__data_len -= total_bytes;
/* update sector only for requests with clear definition of sector */
- if (req->cmd_type == REQ_TYPE_FS)
+ if (!blk_rq_is_passthrough(req))
req->__sector += total_bytes >> 9;
/* mixed attributes always follow the first bio */
@@ -2659,7 +2659,7 @@ void blk_finish_request(struct request *req, int error)
BUG_ON(blk_queued_rq(req));
- if (unlikely(laptop_mode) && req->cmd_type == REQ_TYPE_FS)
+ if (unlikely(laptop_mode) && !blk_rq_is_passthrough(req))
laptop_io_completion(&req->q->backing_dev_info);
blk_delete_timer(req);