On Tue, Feb 4, 2025 at 1:03 AM Vlastimil Babka <vbabka@xxxxxxx> wrote: > > On 2/4/25 06:46, Christoph Hellwig wrote: > > On Sat, Feb 01, 2025 at 04:19:25PM -0800, Suren Baghdasaryan wrote: > >> Hi, > >> I would like to discuss the Guaranteed Contiguous Memory Allocator > >> (GCMA) mechanism that is being used by many Android vendors as an > >> out-of-tree feature, collect input on its possible usefulness for > >> others, feasibility to upstream and suggestions for possible better > >> alternatives. > > > > Well, start by having code on the list. We really need to stop all > > these super hypothetical "wouldn't it be nice" discussions clogging up > > the conferences. > > A bit later the email says: > > > GCMA (Guaranteed CMA) is a mechanism previously proposed in [1] which > > was not upstreamed but got adopted later by many Android vendors as an > > [1] https://lore.kernel.org/lkml/1424721263-25314-2-git-send-email-sj38.park@xxxxxxxxx/ Yeah, the link above can be used as a reference to get the idea about this feature. I'll try to post a new version before the conference but that requires some discussions with Android vendors to ensure we don't miss anything they need (each of them might have tweaked their implementation).