Re: [Qemu-devel] [PATCH] block: delete cow block driver

2014-09-19 Thread Stefan Hajnoczi
On Tue, Sep 16, 2014 at 03:24:24PM +0100, Stefan Hajnoczi wrote: > This patch removes support for the cow file format. > > Normally we do not break backwards compatibility but in this case there > is no impact and it is the most logical option. Extraordinary claims > require extraordinary evidenc

Re: [Qemu-devel] [PATCH] block: delete cow block driver

2014-09-16 Thread Fam Zheng
On Tue, 09/16 15:24, Stefan Hajnoczi wrote: > diff --git a/qapi/block-core.json b/qapi/block-core.json > index a685d02..56302c7 100644 > --- a/qapi/block-core.json > +++ b/qapi/block-core.json > @@ -197,7 +197,7 @@ > # 'file', 'file', 'ftp', 'ftps', 'host_cdrom', 'host_device', > # 'h

Re: [Qemu-devel] [PATCH] block: delete cow block driver

2014-09-16 Thread Markus Armbruster
Stefan Hajnoczi writes: > This patch removes support for the cow file format. > > Normally we do not break backwards compatibility but in this case there > is no impact and it is the most logical option. Extraordinary claims > require extraordinary evidence so I will show why removing the cow bl

[Qemu-devel] [PATCH] block: delete cow block driver

2014-09-16 Thread Stefan Hajnoczi
This patch removes support for the cow file format. Normally we do not break backwards compatibility but in this case there is no impact and it is the most logical option. Extraordinary claims require extraordinary evidence so I will show why removing the cow block driver is the right thing to do