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From: Christoph Hellwig <hch@lst.de>
To: Supriya Kannery <supriyak@linux.vnet.ibm.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Christoph Hellwig <hch@lst.de>,
	qemu-devel@nongnu.org, Prerna Saxena <prerna@linux.vnet.ibm.com>
Subject: Re: [Qemu-devel] [RFC Patch 0/3]Qemu: Enable dynamic cache change	through qemu monitor
Date: Mon, 16 May 2011 22:23:54 +0200	[thread overview]
Message-ID: <20110516202354.GA8955@lst.de> (raw)
In-Reply-To: <20110516181023.7142.33402.sendpatchset@skannery>

Why are you even trying this again?  As explained very clearly last time you
can't change from a writeback-style to a write-through style I/O from
the monitor without creating massive data integrity problems.  See my
patchset that allows changing this from the guest for how it should be
done - I just need to get back and revisit the virtio protocol support
for it.

  parent reply	other threads:[~2011-05-16 20:23 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-16 18:10 [Qemu-devel] [RFC Patch 0/3]Qemu: Enable dynamic cache change through qemu monitor Supriya Kannery
2011-05-16 18:10 ` [Qemu-devel] [RFC Patch 1/3]Qemu: Enhance "info block" to display cache setting Supriya Kannery
2011-05-17  8:39   ` Kevin Wolf
2011-05-17  9:00     ` supriya kannery
2011-05-16 18:10 ` [Qemu-devel] [RFC Patch 2/3]Qemu: New error classes for file reopen and device insertion Supriya Kannery
2011-05-16 18:11 ` [Qemu-devel] [RFC Patch 3/3]Qemu: Add command "cache_set" for dynamic cache change Supriya Kannery
2011-05-16 20:23 ` Christoph Hellwig [this message]
2011-05-16 21:10   ` [Qemu-devel] [RFC Patch 0/3]Qemu: Enable dynamic cache change through qemu monitor Anthony Liguori
2011-05-17  9:27     ` supriya kannery
2011-05-17 15:41     ` Christoph Hellwig
2011-05-20  5:41       ` Supriya Kannery
2011-05-17  9:18   ` supriya kannery

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