On Sat, Jun 13, 2020 at 12:29 PM Rafael J. Wysocki <rjw@xxxxxxxxxxxxx> wrote: [,,] > > While I agree that this is still somewhat suboptimal, improving this > > would require more changes in the OSL code. > > After writing the above I started to think about the extra changes needed > to improve that and I realized that it would take making the OS layer > support deferred memory unmapping, such that the unused mappings would be > queued up for later removal and then released in one go at a suitable time. > > However, that would be sufficient to address the issue addressed by this > series, because the deferred unmapping could be used in > acpi_ev_system_memory_region_setup() right away and that would be a much > simpler change than the one made in patch [1/3]. > > So I went ahead and implemented this and the result is there in the > acpica-osl branch in my tree, but it hasn't been built yet, so caveat > emptor. Anyway, please feel free to have a look at it still. I'll have a look. However, I was just about to build a test kernel for the original reporter of this problem with this patch set. Do you want test feedback on that branch, or this set as is?
