On Tue, Apr 24, 2012 at 01:26:43AM +0900, MORITA Kazutaka wrote:
SD_FLAG_CMD_CACHE is ignored in the older version of Sheepdog, so,
even if we specify cache=writeback or cache=none, the data is written
with O_DSYNC always and cannot be cached in the server's page cache or
volatile disk cache
On Fri, Apr 20, 2012 at 12:15:36PM -0700, MORITA Kazutaka wrote:
His patch sets the SD_FLAG_CMD_CACHE flag for writes only when the
user selects cache=writeback or cache=none. If SD_FLAG_CMD_CACHE is
not set in the request, Sheepdog servers are forced to flush the cache
like FUA commands.
At Mon, 23 Apr 2012 08:08:46 +0200,
Christoph Hellwig wrote:
On Fri, Apr 20, 2012 at 12:15:36PM -0700, MORITA Kazutaka wrote:
His patch sets the SD_FLAG_CMD_CACHE flag for writes only when the
user selects cache=writeback or cache=none. If SD_FLAG_CMD_CACHE is
not set in the request,
On Tue, Apr 03, 2012 at 01:35:50AM +0800, Liu Yuan wrote:
From: Liu Yuan tailai...@taobao.com
Flush operation is supposed to flush the write-back cache of
sheepdog cluster.
By issuing flush operation, we can assure the Guest of data
reaching the sheepdog cluster storage.
How does qemu
At Fri, 20 Apr 2012 20:05:48 +0200,
Christoph Hellwig wrote:
On Tue, Apr 03, 2012 at 01:35:50AM +0800, Liu Yuan wrote:
From: Liu Yuan tailai...@taobao.com
Flush operation is supposed to flush the write-back cache of
sheepdog cluster.
By issuing flush operation, we can assure the
From: Liu Yuan tailai...@taobao.com
Flush operation is supposed to flush the write-back cache of
sheepdog cluster.
By issuing flush operation, we can assure the Guest of data
reaching the sheepdog cluster storage.
Cc: Kevin Wolf kw...@redhat.com
Reviewd-by: MORITA Kazutaka
On 02.04.2012 21:35, Liu Yuan wrote:
From: Liu Yuan tailai...@taobao.com
Flush operation is supposed to flush the write-back cache of
sheepdog cluster.
By issuing flush operation, we can assure the Guest of data
reaching the sheepdog cluster storage.
Cc: Kevin Wolf kw...@redhat.com
On 04/03/2012 04:01 AM, Michael Tokarev wrote:
On 02.04.2012 21:35, Liu Yuan wrote:
From: Liu Yuan tailai...@taobao.com
Flush operation is supposed to flush the write-back cache of
sheepdog cluster.
By issuing flush operation, we can assure the Guest of data
reaching the sheepdog cluster
