Hello, On Thursday, January 26, 2012 4:32 PM Arnd Bergmann wrote: > On Thursday 26 January 2012, Marek Szyprowski wrote: > > Welcome everyone! > > > > Yes, that's true. This is yet another release of the Contiguous Memory > > Allocator patches. This version mainly includes code cleanups requested > > by Mel Gorman and a few minor bug fixes. > > Hi Marek, > > Thanks for keeping up this work! I really hope it works out for the > next merge window. > > > TODO (optional): > > - implement support for contiguous memory areas placed in HIGHMEM zone > > - resolve issue with movable pages with pending io operations > > Can you clarify these? I believe the contiguous memory areas in highmem > is something that should really be after the existing code is merged > into the upstream kernel and should better not be listed as TODO here. Ok, I will remove it from the TODO list. Core memory management is very little dependence on HIGHMEM, it is more about DMA-mapping framework to be aware that there might be no lowmem mappings for the allocated pages. This can be easily added once the initial version got merged. > I haven't followed the last two releases so closely. It seems that > in v17 the movable pages with pending i/o was still a major problem > but in v18 you added a solution. Is that right? What is still left > to be done here then? Since v18 the failed allocation is retried in a bit different place in the contiguous memory area what heavily increased overall reliability. This can be improved by making cma a bit more aware about pending io operations, but I want to leave this after the initial merge. I think that there are no major issues left to be resolved now. Best regards -- Marek Szyprowski Samsung Poland R&D Center -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
