Il 16/04/2013 09:57, Stefan Hajnoczi ha scritto:
> So it sounds like unplug will not block and there is no guarantee the
> memory is actually unplugged when the monitor command completes. The
> memory region is only released when the last reference count holder lets
> go.
>
> This means that pend
On Fri, Apr 12, 2013 at 05:05:41PM +0800, liu ping fan wrote:
> On Fri, Apr 12, 2013 at 4:45 PM, Stefan Hajnoczi wrote:
> > On Fri, Apr 12, 2013 at 12:48:12PM +0800, liu ping fan wrote:
> >> On Thu, Apr 11, 2013 at 6:20 PM, Stefan Hajnoczi
> >> wrote:
> >> > On Mon, Apr 01, 2013 at 04:20:33PM +0
On Fri, Apr 12, 2013 at 4:45 PM, Stefan Hajnoczi wrote:
> On Fri, Apr 12, 2013 at 12:48:12PM +0800, liu ping fan wrote:
>> On Thu, Apr 11, 2013 at 6:20 PM, Stefan Hajnoczi wrote:
>> > On Mon, Apr 01, 2013 at 04:20:33PM +0800, Liu Ping Fan wrote:
>> >> From: Liu Ping Fan
>> >>
>> >> virtio-blk wi
On Fri, Apr 12, 2013 at 12:48:12PM +0800, liu ping fan wrote:
> On Thu, Apr 11, 2013 at 6:20 PM, Stefan Hajnoczi wrote:
> > On Mon, Apr 01, 2013 at 04:20:33PM +0800, Liu Ping Fan wrote:
> >> From: Liu Ping Fan
> >>
> >> virtio-blk will reference to RAM's memoryRegion when the req has been
> >> do
On Thu, Apr 11, 2013 at 6:20 PM, Stefan Hajnoczi wrote:
> On Mon, Apr 01, 2013 at 04:20:33PM +0800, Liu Ping Fan wrote:
>> From: Liu Ping Fan
>>
>> virtio-blk will reference to RAM's memoryRegion when the req has been
>> done. So we can avoid to call bdrv_drain_all() when RAM hot unplug.
>
> How
On Tue, Apr 2, 2013 at 1:58 PM, li guang wrote:
> 在 2013-04-01一的 16:20 +0800，Liu Ping Fan写道：
>> From: Liu Ping Fan
>>
>> virtio-blk will reference to RAM's memoryRegion when the req has been
>> done.
>
> do you mean unreference after req completed?
>
Yes, should s/reference/unreference/
>> So
On Mon, Apr 01, 2013 at 04:20:33PM +0800, Liu Ping Fan wrote:
> From: Liu Ping Fan
>
> virtio-blk will reference to RAM's memoryRegion when the req has been
> done. So we can avoid to call bdrv_drain_all() when RAM hot unplug.
How does the hot unplug operation work without bdrv_drain_all()? In
在 2013-04-01一的 16:20 +0800，Liu Ping Fan写道：
> From: Liu Ping Fan
>
> virtio-blk will reference to RAM's memoryRegion when the req has been
> done.
do you mean unreference after req completed?
> So we can avoid to call bdrv_drain_all() when RAM hot unplug.
>
> Signed-off-by: Liu Ping Fan
> -
From: Liu Ping Fan
virtio-blk will reference to RAM's memoryRegion when the req has been
done. So we can avoid to call bdrv_drain_all() when RAM hot unplug.
Signed-off-by: Liu Ping Fan
---
hw/dataplane/virtio-blk.c | 52 ++--
1 files changed, 40 inser
