Re: [Qemu-devel] [PATCH v2 3/3] block: Introduce BlockDriver.requires_growing_file

2015-03-19 Thread Eric Blake
On 03/19/2015 01:03 PM, Max Reitz wrote: > This flag is set if write accesses to BDSs managed by the respective > driver may lead to writes beyond the end of the underlying file BDS, > expecting it to increase its size accordingly. > > This behavior, however, is only supported by protocol BDSs hav

[Qemu-devel] [PATCH v2 3/3] block: Introduce BlockDriver.requires_growing_file

2015-03-19 Thread Max Reitz
This flag is set if write accesses to BDSs managed by the respective driver may lead to writes beyond the end of the underlying file BDS, expecting it to increase its size accordingly. This behavior, however, is only supported by protocol BDSs having the BDS.growing flag set. If they do not, emit