2020년 4월 21일 (화) 오후 6:00, Christoph Hellwig <hch@xxxxxxxxxxxxx>님이 작성: > > I don't think the names are very good. I'd keep PageHighMem for the > existing highmem zone, and add something like PageDirectMapped or > similar for ay page that has a valid direct mapping address. This will > also come in handy if we plan to go ahead with the xpfo work. For PageHighMem(), as mentioned in patch description, my next plan is to rename PageHighMem() that checks valid direct mapping to PageNoDirectMapped() or something else. PageDirectMapped() looks better. Reason that rename isn't implemented in this patchset is that I'd like to rename after everything is settle down. For PageHighMemZone(), I think that it serves correct meaning. Thanks.