Merge v6.18.52linux-rolling-lts

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/block/bio.c b/block/bio.c
index b184f0a3fcb2..63994b8cd8e1 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -253,6 +253,7 @@ void bio_init(struct bio *bio, struct block_device *bdev, struct bio_vec *table,
 	bio->bi_write_hint = 0;
 	bio->bi_write_stream = 0;
 	bio->bi_status = 0;
+	bio->bi_bvec_gap_bit = 0;
 	bio->bi_iter.bi_sector = 0;
 	bio->bi_iter.bi_size = 0;
 	bio->bi_iter.bi_idx = 0;
@@ -833,6 +834,7 @@ static int __bio_clone(struct bio *bio, struct bio *bio_src, gfp_t gfp)
 	bio->bi_ioprio = bio_src->bi_ioprio;
 	bio->bi_write_hint = bio_src->bi_write_hint;
 	bio->bi_write_stream = bio_src->bi_write_stream;
+	bio->bi_bvec_gap_bit = bio_src->bi_bvec_gap_bit;
 	bio->bi_iter = bio_src->bi_iter;
 
 	if (bio->bi_bdev) {
@@ -1716,6 +1718,14 @@ struct bio *bio_split(struct bio *bio, int sectors,
 
 	bio_advance(bio, split->bi_iter.bi_size);
 
+	/*
+	 * The gap bit is set when splitting to limits and only applies to the
+	 * front bio that was split off. The remaining bio will calcualte its
+	 * gap value when it is subsequently split to limits, so it is safe to
+	 * re-initialize the value back to 0.
+	 */
+	bio->bi_bvec_gap_bit = 0;
+
 	if (bio_flagged(bio, BIO_TRACE_COMPLETION))
 		bio_set_flag(split, BIO_TRACE_COMPLETION);