Update vhost_blk to queue works on virtqueue workers. Together
with previous changes this allows us to split virtio blk requests
across several threads.
| randread, IOPS | randwrite, IOPS |
8vcpu, 1 kernel worker | 497k | 469k |
8vcpu, 2 kernel workers | 730k | 701k |
https://jira.sw.ru/browse/PSBM-139414
Signed-off-by: Andrey Zhadchenko <andrey.zhadche...@virtuozzo.com>
---
drivers/vhost/blk.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/vhost/blk.c b/drivers/vhost/blk.c
index 933c9c50b0a6..6aa87c22c4df 100644
--- a/drivers/vhost/blk.c
+++ b/drivers/vhost/blk.c
@@ -161,13 +161,12 @@ static inline int vhost_blk_set_status(struct
vhost_blk_req *req, u8 status)
static void vhost_blk_req_done(struct bio *bio)
{
struct vhost_blk_req *req = bio->bi_private;
- struct vhost_blk *blk = req->blk;
req->bio_err = blk_status_to_errno(bio->bi_status);
if (atomic_dec_and_test(&req->bio_nr)) {
llist_add(&req->llnode, &req->blk_vq->llhead);
- vhost_work_queue(&blk->dev, &req->blk_vq->work);
+ vhost_work_queue_vq(&req->blk_vq->vq, &req->blk_vq->work);
}
bio_put(bio);
--
2.31.1
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