Re: [PATCH 05/18] Maintain count of in flight requests for VQ_REQUEST queue

[Stefan Hajnoczi]

On Thu, Sep 05, 2019 at 03:48:46PM -0400, Vivek Goyal wrote:
> As of now we maintain this count only for VQ_HIPRIO. Maintain it for
> VQ_REQUEST as well so that later it can be used to drain VQ_REQUEST
> queue.
> 
> Signed-off-by: Vivek Goyal 
> ---
>  fs/fuse/virtio_fs.c | 4 
>  1 file changed, 4 insertions(+)

Reviewed-by: Stefan Hajnoczi 


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[PATCH 05/18] Maintain count of in flight requests for VQ_REQUEST queue

[Vivek Goyal]

As of now we maintain this count only for VQ_HIPRIO. Maintain it for
VQ_REQUEST as well so that later it can be used to drain VQ_REQUEST
queue.

Signed-off-by: Vivek Goyal 
---
 fs/fuse/virtio_fs.c | 4 
 1 file changed, 4 insertions(+)

diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index c46dd4d284d6..5df97dfee37d 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -360,6 +360,9 @@ static void virtio_fs_requests_done_work(struct work_struct 
*work)
spin_unlock(>lock);
 
fuse_request_end(fc, req);
+   spin_lock(>lock);
+   fsvq->in_flight--;
+   spin_unlock(>lock);
}
 }
 
@@ -769,6 +772,7 @@ static int virtio_fs_enqueue_req(struct virtio_fs_vq *fsvq,
goto out;
}
 
+   fsvq->in_flight++;
notify = virtqueue_kick_prepare(vq);
 
spin_unlock(>lock);
-- 
2.20.1

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