Re: [Qemu-devel] [PATCH v2] sheepdog: implement direct write semantics

2013-01-11 Thread Kevin Wolf
Am 11.01.2013 08:35, schrieb MORITA Kazutaka: > At Thu, 10 Jan 2013 16:03:47 +0800, > Liu Yuan wrote: >> >> From: Liu Yuan >> >> Sheepdog supports both writeback/writethrough write but has not yet supported >> DIRECTIO semantics which bypass the cache completely even if Sheepdog daemon >> is >> s

Re: [Qemu-devel] [PATCH v2] sheepdog: implement direct write semantics

2013-01-10 Thread MORITA Kazutaka
At Thu, 10 Jan 2013 16:03:47 +0800, Liu Yuan wrote: > > From: Liu Yuan > > Sheepdog supports both writeback/writethrough write but has not yet supported > DIRECTIO semantics which bypass the cache completely even if Sheepdog daemon > is > set up with cache enabled. > > Suppose cache is enabled

Re: [Qemu-devel] [PATCH v2] sheepdog: implement direct write semantics

2013-01-10 Thread Stefan Hajnoczi
On Thu, Jan 10, 2013 at 04:03:47PM +0800, Liu Yuan wrote: > From: Liu Yuan > > Sheepdog supports both writeback/writethrough write but has not yet supported > DIRECTIO semantics which bypass the cache completely even if Sheepdog daemon > is > set up with cache enabled. > > Suppose cache is enab

[Qemu-devel] [PATCH v2] sheepdog: implement direct write semantics

2013-01-10 Thread Liu Yuan
From: Liu Yuan Sheepdog supports both writeback/writethrough write but has not yet supported DIRECTIO semantics which bypass the cache completely even if Sheepdog daemon is set up with cache enabled. Suppose cache is enabled on Sheepdog daemon size, the new cache control is cache=writeback # en