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Re: [Qemu-devel] [PATCHv2 2/6] cpus: flush all requests on each vm stop
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCHv2 2/6] cpus: flush all requests on each vm stop |
Date: |
Tue, 30 Nov 2010 15:34:29 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Nov 30, 2010 at 10:45:40AM -0200, Marcelo Tosatti wrote:
> On Wed, Nov 24, 2010 at 05:52:58PM +0200, Michael S. Tsirkin wrote:
> > Make sure disk is in consistent state.
> >
> > Signed-off-by: Michael S. Tsirkin <address@hidden>
> > Tested-by: Jason Wang <address@hidden>
> > ---
> > cpus.c | 2 ++
> > 1 files changed, 2 insertions(+), 0 deletions(-)
> >
> > diff --git a/cpus.c b/cpus.c
> > index 91a0fb1..d421a96 100644
> > --- a/cpus.c
> > +++ b/cpus.c
> > @@ -110,6 +110,8 @@ static void do_vm_stop(int reason)
> > cpu_disable_ticks();
> > vm_running = 0;
> > pause_all_vcpus();
> > + qemu_aio_flush();
> > + bdrv_flush_all();
>
> Can you move these after vm_state_notify? qemu-kvm stops vcpus there.
>
> > vm_state_notify(0, reason);
> > monitor_protocol_event(QEVENT_STOP, NULL);
> > }
Like this:
cpus: flush all requests on each vm stop
Make sure disk is in consistent state.
Signed-off-by: Michael S. Tsirkin <address@hidden>
Tested-by: Jason Wang <address@hidden>
---
diff --git a/cpus.c b/cpus.c
index 91a0fb1..d421a96 100644
--- a/cpus.c
+++ b/cpus.c
@@ -110,6 +110,8 @@ static void do_vm_stop(int reason)
cpu_disable_ticks();
vm_running = 0;
pause_all_vcpus();
+ qemu_aio_flush();
+ bdrv_flush_all();
vm_state_notify(0, reason);
monitor_protocol_event(QEVENT_STOP, NULL);
}
- [Qemu-devel] [PATCHv2 0/6] stable migration image on a stopped vm, Michael S. Tsirkin, 2010/11/24
- [Qemu-devel] [PATCHv2 3/6] migration/savevm: no need to flush requests, Michael S. Tsirkin, 2010/11/24
- [Qemu-devel] [PATCHv2 6/6] migration: allow rate > 4g, Michael S. Tsirkin, 2010/11/24
- [Qemu-devel] [PATCHv2 4/6] virtio-net: stop/start bh on vm start/stop, Michael S. Tsirkin, 2010/11/24
- [Qemu-devel] [PATCHv2 2/6] cpus: flush all requests on each vm stop, Michael S. Tsirkin, 2010/11/24
- Re: [Qemu-devel] [PATCHv2 2/6] cpus: flush all requests on each vm stop, Michael S. Tsirkin, 2010/11/30
[Qemu-devel] [PATCHv2 5/6] migration: stable ram block ordering, Michael S. Tsirkin, 2010/11/24
[Qemu-devel] [PATCHv2 1/6] virtio-net: don't dma while vm is stopped, Michael S. Tsirkin, 2010/11/24