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From: | Avi Kivity |
Subject: | Re: [Qemu-devel] Re: [PATCH v3 5/5] qed: Consistency check support |
Date: | Thu, 28 Oct 2010 13:02:58 +0200 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100921 Fedora/3.1.4-1.fc13 Lightning/1.0b3pre Thunderbird/3.1.4 |
On 10/28/2010 12:51 PM, Stefan Hajnoczi wrote:
> > Opening the file read-only first and reopening it read-write when the > migration has completed would be much better. No image format driver > would have to be changed for that. I agree. I'm not sure whether NFS guarantees we see the latest data when reopening read-write (cached pages will be left on the destination host from the initial read-only access).
AFAICT the re-open has to re-validate the metadata. If ctime has changed since the previous stat, the client has to drop local caches.
-- error compiling committee.c: too many arguments to function
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