From: Paolo Bonzini <pbonzini@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>
Cc: qemu-devel@nongnu.org, avi@redhat.com
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 [thread overview]
Message-ID: <4EA1BD95.8030205@redhat.com> (raw)
In-Reply-To: <1319216912-26964-1-git-send-email-kwolf@redhat.com>
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
next prev parent reply other threads:[~2011-10-21 18:44 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-21 17:08 [Qemu-devel] [PATCH 0/2] block: Write out internal caches even with cache=unsafe Kevin Wolf
2011-10-21 17:08 ` [Qemu-devel] [PATCH 1/2] raw-posix: Convert to bdrv_co_flush Kevin Wolf
2011-10-21 17:08 ` [Qemu-devel] [PATCH 2/2] block: Handle cache=unsafe only in raw-posix/win32 Kevin Wolf
2011-10-21 18:44 ` Paolo Bonzini [this message]
2011-10-22 15:07 ` [Qemu-devel] [PATCH 0/2] block: Write out internal caches even with cache=unsafe Alexander Graf
2011-10-23 14:33 ` Paolo Bonzini
2011-10-24 8:05 ` Kevin Wolf
2011-10-24 7:37 ` Kevin Wolf
2011-10-24 7:53 ` Paolo Bonzini
2011-10-24 8:17 ` Kevin Wolf
2011-10-24 8:47 ` Paolo Bonzini
2011-10-24 8:54 ` Kevin Wolf
2011-10-24 9:26 ` Paolo Bonzini
2011-10-24 9:36 ` Kevin Wolf
2011-10-24 9:40 ` Paolo Bonzini
2011-10-24 9:53 ` Kevin Wolf
2011-10-24 10:08 ` Paolo Bonzini
2011-10-24 9:09 ` Peter Maydell
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