On Wed, Jun 24, 2020 at 3:44 PM Wei Yang <richard.weiyang@xxxxxxxxxxxxxxxxx> wrote: [..] > >So, you are right that there is a mismatch here, but I think the > >comprehensive fix is to allow early sections to be partially > >depopulated/repopulated rather than have section_activate() and > >section_deacticate() special case early sections. The special casing > >is problematic in retrospect as section_deactivate() can't be > >maintained without understand special rules in section_activate(). > > Hmm... This means we need to adjust pfn_valid() too, which always return true > for early sections. Right, rather than carry workarounds in 3 locations, and the bug that has resulted from then getting out of sync, just teach early section mapping to allow for the subsection populate/depopulate.
