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[Qemu-devel] [PATCH v3 6/7] virtio-scsi: Call bdrv_io_plug/bdrv_io_unplu
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH v3 6/7] virtio-scsi: Call bdrv_io_plug/bdrv_io_unplug in cmd request handling |
Date: |
Tue, 23 Sep 2014 15:49:29 +0800 |
Signed-off-by: Fam Zheng <address@hidden>
---
hw/scsi/virtio-scsi.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index 395178e..09a39cb 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -488,6 +488,8 @@ bool virtio_scsi_handle_cmd_req_prepare(VirtIOSCSI *s,
VirtIOSCSIReq *req)
virtio_scsi_complete_cmd_req(req);
return false;
}
+ scsi_req_ref(req->sreq);
+ bdrv_io_plug(d->conf.bs);
return true;
}
@@ -496,6 +498,8 @@ void virtio_scsi_handle_cmd_req_submit(VirtIOSCSI *s,
VirtIOSCSIReq *req)
if (scsi_req_enqueue(req->sreq)) {
scsi_req_continue(req->sreq);
}
+ bdrv_io_unplug(req->sreq->dev->conf.bs);
+ scsi_req_unref(req->sreq);
}
static void virtio_scsi_handle_cmd(VirtIODevice *vdev, VirtQueue *vq)
--
1.9.3
- [Qemu-devel] [PATCH v3 0/7] virtio-scsi: Dataplane on single iothread, Fam Zheng, 2014/09/23
- [Qemu-devel] [PATCH v3 1/7] virtio-scsi-dataplane: Code to run virtio-scsi on iothread, Fam Zheng, 2014/09/23
- [Qemu-devel] [PATCH v3 2/7] virtio-scsi: Hook up with dataplane, Fam Zheng, 2014/09/23
- [Qemu-devel] [PATCH v3 3/7] virtio-scsi: Add migration state notifier for dataplane code, Fam Zheng, 2014/09/23
- [Qemu-devel] [PATCH v3 4/7] virtio-scsi: Two stages processing of cmd request, Fam Zheng, 2014/09/23
- [Qemu-devel] [PATCH v3 5/7] virtio-scsi: Batched prepare for cmd reqs, Fam Zheng, 2014/09/23
- [Qemu-devel] [PATCH v3 6/7] virtio-scsi: Call bdrv_io_plug/bdrv_io_unplug in cmd request handling,
Fam Zheng <=
- [Qemu-devel] [PATCH v3 7/7] virtio-scsi: Process ".iothread" property, Fam Zheng, 2014/09/23
- Re: [Qemu-devel] [PATCH v3 0/7] virtio-scsi: Dataplane on single iothread, Paolo Bonzini, 2014/09/23