Am 22.10.2010 18:22, schrieb Sage Weil:
On Fri, 22 Oct 2010, Kevin Wolf wrote:
[ Adding qemu-devel to CC again ]
Am 21.10.2010 20:59, schrieb Sage Weil:
On Thu, 21 Oct 2010, Christian Brunner wrote:
Hi,
is there a flush operation in librados? - I guess the only way to
handle this, would
At Fri, 22 Oct 2010 10:47:44 +0200,
Kevin Wolf wrote:
Am 22.10.2010 07:43, schrieb MORITA Kazutaka:
At Thu, 21 Oct 2010 16:07:28 +0200,
Kevin Wolf wrote:
Hi all,
I'm currently looking into adding a return value to qemu's bdrv_flush
function and I noticed that your block drivers
Am 21.10.2010 21:32, schrieb Laurent Vivier:
Le jeudi 21 octobre 2010 à 10:07 -0500, Anthony Liguori a écrit :
On 10/21/2010 09:07 AM, Kevin Wolf wrote:
Hi all,
I'm currently looking into adding a return value to qemu's bdrv_flush
function and I noticed that your block drivers (nbd, rbd and
: [Qemu-devel] bdrv_flush for qemu block drivers nbd, rbd and sheepdog
To: Christian Brunner c...@muc.de, Laurent Vivier
laur...@vivier.eu, MORITA Kazutaka morita.kazut...@lab.ntt.co.jp
Cc: Qemu-devel@nongnu.org
Hi all,
I'm currently looking into adding a return value to qemu's bdrv_flush
Am 22.10.2010 07:43, schrieb MORITA Kazutaka:
At Thu, 21 Oct 2010 16:07:28 +0200,
Kevin Wolf wrote:
Hi all,
I'm currently looking into adding a return value to qemu's bdrv_flush
function and I noticed that your block drivers (nbd, rbd and sheepdog)
don't implement bdrv_flush at all.
On 10/22/2010 03:29 AM, Kevin Wolf wrote:
I agree.
Of course, as Laurent said a while ago, there is no specification for
NBD, so it's hard to say what the intended semantics is.
However, I did have a look at the nbdserver code and it looks as if it
implements something similar to
Am 22.10.2010 14:58, schrieb Anthony Liguori:
On 10/22/2010 03:29 AM, Kevin Wolf wrote:
I agree.
Of course, as Laurent said a while ago, there is no specification for
NBD, so it's hard to say what the intended semantics is.
However, I did have a look at the nbdserver code and it looks
On 10/22/2010 08:35 AM, Kevin Wolf wrote:
Am 22.10.2010 14:58, schrieb Anthony Liguori:
On 10/22/2010 03:29 AM, Kevin Wolf wrote:
I agree.
Of course, as Laurent said a while ago, there is no specification for
NBD, so it's hard to say what the intended semantics is.
On 10/22/2010 08:57 AM, Kevin Wolf wrote:
Am 22.10.2010 15:45, schrieb Anthony Liguori:
On a physical system, if you don't have a battery backed disk and you
enable the WC on your disk, then even with cache=writethrough we're unsafe.
I don't think that's right. O_SYNC should
Am 22.10.2010 15:45, schrieb Anthony Liguori:
On a physical system, if you don't have a battery backed disk and you
enable the WC on your disk, then even with cache=writethrough we're unsafe.
I don't think that's right. O_SYNC should guarantee that the volatile
disk cache is flushed.
disk to flush it's cache?
sage
Kevin
-- Forwarded message --
From: Kevin Wolf kw...@redhat.com
Date: 2010/10/21
Subject: [Qemu-devel] bdrv_flush for qemu block drivers nbd, rbd and
sheepdog
To: Christian Brunner c...@muc.de, Laurent Vivier
laur...@vivier.eu
Hi all,
I'm currently looking into adding a return value to qemu's bdrv_flush
function and I noticed that your block drivers (nbd, rbd and sheepdog)
don't implement bdrv_flush at all. bdrv_flush is going to return
-ENOTSUP for any block driver not implementing this, effectively
breaking these
On 10/21/2010 09:07 AM, Kevin Wolf wrote:
Hi all,
I'm currently looking into adding a return value to qemu's bdrv_flush
function and I noticed that your block drivers (nbd, rbd and sheepdog)
don't implement bdrv_flush at all. bdrv_flush is going to return
-ENOTSUP for any block driver not
Le jeudi 21 octobre 2010 à 10:07 -0500, Anthony Liguori a écrit :
On 10/21/2010 09:07 AM, Kevin Wolf wrote:
Hi all,
I'm currently looking into adding a return value to qemu's bdrv_flush
function and I noticed that your block drivers (nbd, rbd and sheepdog)
don't implement bdrv_flush at
At Thu, 21 Oct 2010 16:07:28 +0200,
Kevin Wolf wrote:
Hi all,
I'm currently looking into adding a return value to qemu's bdrv_flush
function and I noticed that your block drivers (nbd, rbd and sheepdog)
don't implement bdrv_flush at all. bdrv_flush is going to return
-ENOTSUP for any
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