[Qemu-devel] [PATCH 02/17] qcow2: No persistent dirty bitmaps for compat=0.10

2017-11-22 Thread Max Reitz
Persistent dirty bitmaps require a properly functioning autoclear_features field, or we cannot track when an unsupporting program might overwrite them. Therefore, we cannot support them for compat=0.10 images. Signed-off-by: Max Reitz --- block/qcow2-bitmap.c | 10 ++ block/qcow2.c

Re: [Qemu-devel] [PATCH 02/17] qcow2: No persistent dirty bitmaps for compat=0.10

2017-11-29 Thread Eric Blake
On 11/22/2017 08:08 PM, Max Reitz wrote: Persistent dirty bitmaps require a properly functioning autoclear_features field, or we cannot track when an unsupporting program might overwrite them. Therefore, we cannot support them for compat=0.10 images. Signed-off-by: Max Reitz --- block/qcow2-