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Diffstat (limited to 'hw/virtio-blk.c')
-rw-r--r--hw/virtio-blk.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 2beff5224a..5036b5b024 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -26,6 +26,7 @@ typedef struct VirtIOBlock
VirtQueue *vq;
void *rq;
char serial_str[BLOCK_SERIAL_STRLEN + 1];
+ QEMUBH *bh;
} VirtIOBlock;
static VirtIOBlock *to_virtio_blk(VirtIODevice *vdev)
@@ -302,13 +303,13 @@ static void virtio_blk_handle_output(VirtIODevice *vdev, VirtQueue *vq)
*/
}
-static void virtio_blk_dma_restart_cb(void *opaque, int running, int reason)
+static void virtio_blk_dma_restart_bh(void *opaque)
{
VirtIOBlock *s = opaque;
VirtIOBlockReq *req = s->rq;
- if (!running)
- return;
+ qemu_bh_delete(s->bh);
+ s->bh = NULL;
s->rq = NULL;
@@ -318,6 +319,19 @@ static void virtio_blk_dma_restart_cb(void *opaque, int running, int reason)
}
}
+static void virtio_blk_dma_restart_cb(void *opaque, int running, int reason)
+{
+ VirtIOBlock *s = opaque;
+
+ if (!running)
+ return;
+
+ if (!s->bh) {
+ s->bh = qemu_bh_new(virtio_blk_dma_restart_bh, s);
+ qemu_bh_schedule(s->bh);
+ }
+}
+
static void virtio_blk_reset(VirtIODevice *vdev)
{
/*