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virtio-console: call scheduler when we free unused buffs

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For virtio-net we were getting CPU stall warnings, and fixed it by
calling the scheduler: see f8bb51043945 ("virtio_net: suppress cpu stall
when free_unused_bufs").

This driver is similar so theoretically the same logic applies.

Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
Message-Id: <20230609131817.712867-3-xianting.tian@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Xianting Tian 2023-06-09 21:18:16 +08:00 committed by Michael S. Tsirkin
parent 7a5103b81a
commit 56b5e65efe
1 changed files with 1 additions and 0 deletions
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drivers/char/virtio_console.c
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@ -1935,6 +1935,7 @@ static void remove_vqs(struct ports_device *portdev)
flush_bufs(vq, true);
while ((buf = virtqueue_detach_unused_buf(vq)))
free_buf(buf, true);
cond_resched();
}
portdev->vdev->config->del_vqs(portdev->vdev);
kfree(portdev->in_vqs);