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Re: [Qemu-devel] [PATCH 0/2] virtagent - fsfreeze support
From: |
Jes Sorensen |
Subject: |
Re: [Qemu-devel] [PATCH 0/2] virtagent - fsfreeze support |
Date: |
Tue, 01 Feb 2011 15:28:19 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101209 Fedora/3.1.7-0.35.b3pre.fc14 Lightning/1.0b3pre Thunderbird/3.1.7 |
On 02/01/11 15:16, Stefan Hajnoczi wrote:
> On Tue, Feb 1, 2011 at 10:58 AM, <address@hidden> wrote:
>> From: Jes Sorensen <address@hidden>
>> This is a first attempt to add fsfreeze support to virtagent. The idea
>> is for the guest agent to walk the list of locally mounted file
>> systems in the guest, and issuing an ioctl to freeze them. The host
>> can then do a live snapshot of the guest, obtaining stable file
>> systems. After the snapshot, the host then calls the thaw function in
>> virtagent, which goes through the list of previously frozen file
>> systems and unfreezes them.
>
> Any plans for a call-out to pre/post freeze and thaw scripts so that
> applications can flush cached data to disk and brace themselves for
> freeze?
Michael and I were discussing this earlier, we need to add it somehow.
It could be done as call-outs from the freeze call, or from separate
agent calls.
Cheers,
Jes
- Re: [Qemu-devel] [PATCH 1/2] Add virtagent file system freeze/thaw, (continued)
[Qemu-devel] [PATCH 2/2] Add monitor commands for fsfreeze support, Jes . Sorensen, 2011/02/01
Re: [Qemu-devel] [PATCH 0/2] virtagent - fsfreeze support, Vasiliy G Tolstov, 2011/02/01
Re: [Qemu-devel] [PATCH 0/2] virtagent - fsfreeze support, Stefan Hajnoczi, 2011/02/01
- Re: [Qemu-devel] [PATCH 0/2] virtagent - fsfreeze support,
Jes Sorensen <=