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>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index a143a67a6f33..341f9418bd68 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -114,12 +114,12 @@ extern void blk_fill_rwbs(char *rwbs, unsigned int op, int bytes);
 
 static inline sector_t blk_rq_trace_sector(struct request *rq)
 {
-        return (rq->cmd_type != REQ_TYPE_FS) ? 0 : blk_rq_pos(rq);
+        return blk_rq_is_passthrough(rq) ? 0 : blk_rq_pos(rq);
 }
 
 static inline unsigned int blk_rq_trace_nr_sectors(struct request *rq)
 {
-        return (rq->cmd_type != REQ_TYPE_FS) ? 0 : blk_rq_sectors(rq);
+        return blk_rq_is_passthrough(rq) ? 0 : blk_rq_sectors(rq);
 }
 
 #endif