Re: [Qemu-devel] [PATCH v4 11/13] block/mirror: Add active mirroring

2018-04-20 Thread Max Reitz
On 2018-04-12 00:14, Eric Blake wrote: > On 04/11/2018 01:54 PM, Max Reitz wrote: >> This patch implements active synchronous mirroring. In active mode, the >> passive mechanism will still be in place and is used to copy all >> initially dirty clusters off the source disk; but every write request

Re: [Qemu-devel] [PATCH v4 11/13] block/mirror: Add active mirroring

2018-04-11 Thread Eric Blake
On 04/11/2018 01:54 PM, Max Reitz wrote: > This patch implements active synchronous mirroring. In active mode, the > passive mechanism will still be in place and is used to copy all > initially dirty clusters off the source disk; but every write request > will write data both to the source and the

[Qemu-devel] [PATCH v4 11/13] block/mirror: Add active mirroring

2018-04-11 Thread Max Reitz
This patch implements active synchronous mirroring. In active mode, the passive mechanism will still be in place and is used to copy all initially dirty clusters off the source disk; but every write request will write data both to the source and the target disk, so the source cannot be dirtied fas