Re: [Qemu-devel] [PATCH 03/16] allow writing to the backing file

2015-09-09 Thread Wen Congyang
On 09/03/2015 12:06 AM, Eric Blake wrote: > On 09/02/2015 02:51 AM, Wen Congyang wrote: >> Signed-off-by: Wen Congyang >> Signed-off-by: zhanghailiang >> Signed-off-by: Gonglei > > Not much description in the commit message. I really want an > explanation of why this patch is necessary. After

Re: [Qemu-devel] [PATCH 03/16] allow writing to the backing file

2015-09-02 Thread Eric Blake
On 09/02/2015 02:51 AM, Wen Congyang wrote: > Signed-off-by: Wen Congyang > Signed-off-by: zhanghailiang > Signed-off-by: Gonglei Not much description in the commit message. I really want an explanation of why this patch is necessary. After all, with 'block-commit', we were able to turn on re

[Qemu-devel] [PATCH 03/16] allow writing to the backing file

2015-09-02 Thread Wen Congyang
Signed-off-by: Wen Congyang Signed-off-by: zhanghailiang Signed-off-by: Gonglei --- block.c | 41 - qapi/block-core.json | 7 ++- 2 files changed, 46 insertions(+), 2 deletions(-) diff --git a/block.c b/block.c index aeb365b..d02d9e9 10