Don't clear REQ_HIPRI for bio-based drivers. Device mapper will need to
see this flag in order to support polling.
Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
---
block/blk-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.6/block/blk-core.c
===================================================================
--- linux-2.6.orig/block/blk-core.c 2021-03-02 10:43:28.000000000 +0100
+++ linux-2.6/block/blk-core.c 2021-03-02 10:53:50.000000000 +0100
@@ -836,7 +836,7 @@ static noinline_for_stack bool submit_bi
}
}
- if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags))
+ if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags) && !bdev->bd_disk->fops->submit_bio)
bio->bi_opf &= ~REQ_HIPRI;
switch (bio_op(bio)) {
