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-rw-r--r--block/bio.c2
-rw-r--r--block/blk-crypto-fallback.c1
-rw-r--r--block/blk-merge.c8
-rw-r--r--block/blk-mq.c2
-rw-r--r--block/bounce.c1
-rw-r--r--block/fops.c3
6 files changed, 17 insertions, 0 deletions
diff --git a/block/bio.c b/block/bio.c
index b9642a41f286e..c9223e9d31da5 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -251,6 +251,7 @@ void bio_init(struct bio *bio, struct block_device *bdev, struct bio_vec *table,
bio->bi_opf = opf;
bio->bi_flags = 0;
bio->bi_ioprio = 0;
+ bio->bi_write_hint = 0;
bio->bi_status = 0;
bio->bi_iter.bi_sector = 0;
bio->bi_iter.bi_size = 0;
@@ -813,6 +814,7 @@ static int __bio_clone(struct bio *bio, struct bio *bio_src, gfp_t gfp)
{
bio_set_flag(bio, BIO_CLONED);
bio->bi_ioprio = bio_src->bi_ioprio;
+ bio->bi_write_hint = bio_src->bi_write_hint;
bio->bi_iter = bio_src->bi_iter;
if (bio->bi_bdev) {
diff --git a/block/blk-crypto-fallback.c b/block/blk-crypto-fallback.c
index e6468eab2681e..b1e7415f8439c 100644
--- a/block/blk-crypto-fallback.c
+++ b/block/blk-crypto-fallback.c
@@ -172,6 +172,7 @@ static struct bio *blk_crypto_fallback_clone_bio(struct bio *bio_src)
if (bio_flagged(bio_src, BIO_REMAPPED))
bio_set_flag(bio, BIO_REMAPPED);
bio->bi_ioprio = bio_src->bi_ioprio;
+ bio->bi_write_hint = bio_src->bi_write_hint;
bio->bi_iter.bi_sector = bio_src->bi_iter.bi_sector;
bio->bi_iter.bi_size = bio_src->bi_iter.bi_size;
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 2d470cf2173e2..2a06fd33039da 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -810,6 +810,10 @@ static struct request *attempt_merge(struct request_queue *q,
if (rq_data_dir(req) != rq_data_dir(next))
return NULL;
+ /* Don't merge requests with different write hints. */
+ if (req->write_hint != next->write_hint)
+ return NULL;
+
if (req->ioprio != next->ioprio)
return NULL;
@@ -937,6 +941,10 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio)
if (!bio_crypt_rq_ctx_compatible(rq, bio))
return false;
+ /* Don't merge requests with different write hints. */
+ if (rq->write_hint != bio->bi_write_hint)
+ return false;
+
if (rq->ioprio != bio_prio(bio))
return false;
diff --git a/block/blk-mq.c b/block/blk-mq.c
index aa87fcfda1ecf..34ceb15d2ea47 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2585,6 +2585,7 @@ static void blk_mq_bio_to_request(struct request *rq, struct bio *bio,
rq->cmd_flags |= REQ_FAILFAST_MASK;
rq->__sector = bio->bi_iter.bi_sector;
+ rq->write_hint = bio->bi_write_hint;
blk_rq_bio_prep(rq, bio, nr_segs);
/* This can't fail, since GFP_NOIO includes __GFP_DIRECT_RECLAIM. */
@@ -3185,6 +3186,7 @@ int blk_rq_prep_clone(struct request *rq, struct request *rq_src,
}
rq->nr_phys_segments = rq_src->nr_phys_segments;
rq->ioprio = rq_src->ioprio;
+ rq->write_hint = rq_src->write_hint;
if (rq->bio && blk_crypto_rq_bio_prep(rq, rq->bio, gfp_mask) < 0)
goto free_and_out;
diff --git a/block/bounce.c b/block/bounce.c
index 7cfcb242f9a11..d6a5219f29dd5 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -169,6 +169,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
if (bio_flagged(bio_src, BIO_REMAPPED))
bio_set_flag(bio, BIO_REMAPPED);
bio->bi_ioprio = bio_src->bi_ioprio;
+ bio->bi_write_hint = bio_src->bi_write_hint;
bio->bi_iter.bi_sector = bio_src->bi_iter.bi_sector;
bio->bi_iter.bi_size = bio_src->bi_iter.bi_size;
diff --git a/block/fops.c b/block/fops.c
index 93bae17ce660c..63566a3db1869 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -73,6 +73,7 @@ static ssize_t __blkdev_direct_IO_simple(struct kiocb *iocb,
bio_init(&bio, bdev, vecs, nr_pages, dio_bio_write_op(iocb));
}
bio.bi_iter.bi_sector = pos >> SECTOR_SHIFT;
+ bio.bi_write_hint = file_inode(iocb->ki_filp)->i_write_hint;
bio.bi_ioprio = iocb->ki_ioprio;
ret = bio_iov_iter_get_pages(&bio, iter);
@@ -203,6 +204,7 @@ static ssize_t __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
for (;;) {
bio->bi_iter.bi_sector = pos >> SECTOR_SHIFT;
+ bio->bi_write_hint = file_inode(iocb->ki_filp)->i_write_hint;
bio->bi_private = dio;
bio->bi_end_io = blkdev_bio_end_io;
bio->bi_ioprio = iocb->ki_ioprio;
@@ -321,6 +323,7 @@ static ssize_t __blkdev_direct_IO_async(struct kiocb *iocb,
dio->flags = 0;
dio->iocb = iocb;
bio->bi_iter.bi_sector = pos >> SECTOR_SHIFT;
+ bio->bi_write_hint = file_inode(iocb->ki_filp)->i_write_hint;
bio->bi_end_io = blkdev_bio_end_io_async;
bio->bi_ioprio = iocb->ki_ioprio;