Re: [PATCH v2 4/5] nbd: Add new qemu:allocation-depth metacontext

2020-10-08 Thread Vladimir Sementsov-Ogievskiy
08.10.2020 00:54, Eric Blake wrote: On 10/7/20 8:40 AM, Vladimir Sementsov-Ogievskiy wrote: 30.09.2020 15:11, Eric Blake wrote: 'qemu-img map' provides a way to determine which extents of an image come from the top layer vs. inherited from a backing chain.  This is useful information worth expo

Re: [PATCH v2 4/5] nbd: Add new qemu:allocation-depth metacontext

2020-10-07 Thread Eric Blake
On 10/7/20 8:40 AM, Vladimir Sementsov-Ogievskiy wrote: > 30.09.2020 15:11, Eric Blake wrote: >> 'qemu-img map' provides a way to determine which extents of an image >> come from the top layer vs. inherited from a backing chain.  This is >> useful information worth exposing over NBD.  There is a pr

Re: [PATCH v2 4/5] nbd: Add new qemu:allocation-depth metacontext

2020-10-07 Thread Vladimir Sementsov-Ogievskiy
30.09.2020 15:11, Eric Blake wrote: 'qemu-img map' provides a way to determine which extents of an image come from the top layer vs. inherited from a backing chain. This is useful information worth exposing over NBD. There is a proposal to add a QMP command block-dirty-bitmap-populate which can

[PATCH v2 4/5] nbd: Add new qemu:allocation-depth metacontext

2020-09-30 Thread Eric Blake
'qemu-img map' provides a way to determine which extents of an image come from the top layer vs. inherited from a backing chain. This is useful information worth exposing over NBD. There is a proposal to add a QMP command block-dirty-bitmap-populate which can create a dirty bitmap that reflects a