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Re: [Qemu-devel] [PATCH] block: push recursive flushing up from drivers
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH] block: push recursive flushing up from drivers |
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Date: |
Mon, 12 Mar 2012 17:22:29 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120216 Thunderbird/10.0.1 |
Il 12/03/2012 17:22, Kevin Wolf ha scritto:
>> > In most cases, bdrv_co_flush_to_disk just needs to flush the underlying
>> > file for protocols. Do this implicitly in the block layer.
>> >
>> > The backing file is also flushed, because it may still be open read-write
>> > in the case of live snapshots.
> Is this an independent change? I'm also not convinced that it's the
> right thing to do because even though it is still opened read-write, we
> don't write to it any more. Once bdrv_reopen() is ready, we'll want to
> change it to read-only after taking the snapshot.
Ok, I'll remove it.
Paolo