[PATCH AUTOSEL for 4.15 075/189] block: Set BIO_TRACE_COMPLETION on new bio during split

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From: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>

[ Upstream commit 20d59023c5ec4426284af492808bcea1f39787ef ]

We inadvertently set it again on the source bio, but we need
to set it on the new split bio instead.

Fixes: fbbaf700e7b1 ("block: trace completion of all bios.")
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
 block/bio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/bio.c b/block/bio.c
index 9ef6cf3addb3..7d38b769fde2 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1838,7 +1838,7 @@ struct bio *bio_split(struct bio *bio, int sectors,
 	bio_advance(bio, split->bi_iter.bi_size);
 
 	if (bio_flagged(bio, BIO_TRACE_COMPLETION))
-		bio_set_flag(bio, BIO_TRACE_COMPLETION);
+		bio_set_flag(split, BIO_TRACE_COMPLETION);
 
 	return split;
 }
-- 
2.15.1




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