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From: | Paolo Bonzini |
Subject: | Re: [Qemu-devel] [PATCH 0/2] block: Write out internal caches even with cache=unsafe |
Date: | Fri, 21 Oct 2011 20:44:37 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:7.0) Gecko/20110927 Thunderbird/7.0 |
On 10/21/2011 07:08 PM, Kevin Wolf wrote:
Avi complained that not even writing out qcow2's cache on bdrv_flush() made cache=unsafe too unsafe to be useful. He's got a point.
Why? cache=unsafe is explicitly allowing to s/data/manure/ on crash. If you do this for raw-posix, you need to do it for all protocols.
Kevin Wolf (2): raw-posix: Convert to bdrv_co_flush block: Handle cache=unsafe only in raw-posix/win32
Paolo
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