On Wed, Jun 20, 2018 at 07:56:12AM -0700, Chris Mason wrote:
> For COW, btrfs expects pages dirty pages to have been through a few setup
> steps. This includes reserving space for the new block allocations and
> marking
> the range in the state tree for delayed allocation.
>
> A few places
For COW, btrfs expects pages dirty pages to have been through a few setup
steps. This includes reserving space for the new block allocations and marking
the range in the state tree for delayed allocation.
A few places outside btrfs will dirty pages directly, especially when unmapping
mmap'd