Re: [Qemu-devel] [PATCH] block: Flush image after open

2011-03-21 Thread Avi Kivity
On 03/21/2011 03:02 PM, Kevin Wolf wrote: Am 21.03.2011 13:23, schrieb Avi Kivity: > On 03/09/2011 07:38 PM, Anthony Liguori wrote: >> On 03/09/2011 11:27 AM, Christoph Hellwig wrote: >>> On Wed, Mar 09, 2011 at 05:15:53PM +0100, Kevin Wolf wrote: Quoting the bug report:

Re: [Qemu-devel] [PATCH] block: Flush image after open

2011-03-21 Thread Kevin Wolf
Am 21.03.2011 13:23, schrieb Avi Kivity: > On 03/09/2011 07:38 PM, Anthony Liguori wrote: >> On 03/09/2011 11:27 AM, Christoph Hellwig wrote: >>> On Wed, Mar 09, 2011 at 05:15:53PM +0100, Kevin Wolf wrote: Quoting the bug report: qemu ensures that guest writes and qemu metadata

Re: [Qemu-devel] [PATCH] block: Flush image after open

2011-03-21 Thread Avi Kivity
On 03/09/2011 07:38 PM, Anthony Liguori wrote: On 03/09/2011 11:27 AM, Christoph Hellwig wrote: On Wed, Mar 09, 2011 at 05:15:53PM +0100, Kevin Wolf wrote: Quoting the bug report: qemu ensures that guest writes and qemu metadata writes hit the disk when necessary to prevent data cor

Re: [Qemu-devel] [PATCH] block: Flush image after open

2011-03-09 Thread Anthony Liguori
On 03/09/2011 11:27 AM, Christoph Hellwig wrote: On Wed, Mar 09, 2011 at 05:15:53PM +0100, Kevin Wolf wrote: Quoting the bug report: qemu ensures that guest writes and qemu metadata writes hit the disk when necessary to prevent data corruption. However, if an image was in host pa

Re: [Qemu-devel] [PATCH] block: Flush image after open

2011-03-09 Thread Christoph Hellwig
On Wed, Mar 09, 2011 at 05:15:53PM +0100, Kevin Wolf wrote: > Quoting the bug report: > > qemu ensures that guest writes and qemu metadata writes hit the disk > when necessary to prevent data corruption. However, if an image was > in host pagecache prior to starting qemu, for example a

[Qemu-devel] [PATCH] block: Flush image after open

2011-03-09 Thread Kevin Wolf
Quoting the bug report: qemu ensures that guest writes and qemu metadata writes hit the disk when necessary to prevent data corruption. However, if an image was in host pagecache prior to starting qemu, for example after running qemu-img convert, then nothing prevents writes from r