block: rename bio bi_rw to bi_opf

Since commit 63a4cc24867d, bio->bi_rw contains flags in the lower
portion and the op code in the higher portions. This means that
old code that relies on manually setting bi_rw is most likely
going to be broken. Instead of letting that brokeness linger,
rename the member, to force old and out-of-tree code to break
at compile time instead of at runtime.

No intended functional changes in this commit.

Signed-off-by: Jens Axboe <axboe@fb.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index fb345cd11883..7598e6ca817a 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -776,7 +776,7 @@ static void blk_add_trace_bio(struct request_queue *q, struct bio *bio,
                 return;
 
         __blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size,
-                        bio_op(bio), bio->bi_rw, what, error, 0, NULL);
+                        bio_op(bio), bio->bi_opf, what, error, 0, NULL);
 }
 
 static void blk_add_trace_bio_bounce(void *ignore,
@@ -881,7 +881,7 @@ static void blk_add_trace_split(void *ignore,
                 __be64 rpdu = cpu_to_be64(pdu);
 
                 __blk_add_trace(bt, bio->bi_iter.bi_sector,
-                                bio->bi_iter.bi_size, bio_op(bio), bio->bi_rw,
+                                bio->bi_iter.bi_size, bio_op(bio), bio->bi_opf,
                                 BLK_TA_SPLIT, bio->bi_error, sizeof(rpdu),
                                 &rpdu);
         }
@@ -915,7 +915,7 @@ static void blk_add_trace_bio_remap(void *ignore,
         r.sector_from = cpu_to_be64(from);
 
         __blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size,
-                        bio_op(bio), bio->bi_rw, BLK_TA_REMAP, bio->bi_error,
+                        bio_op(bio), bio->bi_opf, BLK_TA_REMAP, bio->bi_error,
                         sizeof(r), &r);
 }