Re: [Qemu-devel] [PATCH v4 2/7] qmp: add internal sync mode "common" to mirror_start

2013-10-08 Thread Fam Zheng
On Mon, 09/30 08:49, Eric Blake wrote: > On 09/30/2013 06:02 AM, Fam Zheng wrote: > > This adds a new sync mode "common" which only copies data that is above > > the common ancestor of source and target. In general, this could be useful > > in cases like: > > > > base_bs ---> common_ancestor -

Re: [Qemu-devel] [PATCH v4 2/7] qmp: add internal sync mode "common" to mirror_start

2013-09-30 Thread Eric Blake
On 09/30/2013 06:02 AM, Fam Zheng wrote: > This adds a new sync mode "common" which only copies data that is above > the common ancestor of source and target. In general, this could be useful > in cases like: > > base_bs ---> common_ancestor ---> foo ---> bar --->source >

[Qemu-devel] [PATCH v4 2/7] qmp: add internal sync mode "common" to mirror_start

2013-09-30 Thread Fam Zheng
This adds a new sync mode "common" which only copies data that is above the common ancestor of source and target. In general, this could be useful in cases like: base_bs ---> common_ancestor ---> foo ---> bar --->source \ \--