Messages in this thread | | | Subject | Re: [PATCH v2 0/7] Allocate memmap from hotadded memory (per device) | From | David Hildenbrand <> | Date | Mon, 22 Feb 2021 12:28:22 +0100 |
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On 22.02.21 12:15, Oscar Salvador wrote: > On Wed, Feb 17, 2021 at 11:18:59AM +0100, Oscar Salvador wrote: >> On Tue, Feb 09, 2021 at 02:38:47PM +0100, Oscar Salvador wrote: >>> Hi, >>> >>> here is v2. >>> >>> Changes from v1 -> v2 >>> - Addressed feedback from David >>> - Fence off the feature in case struct page size is not >>> multiple of PMD size or pageblock alignment cannot be guaranted >>> - Tested on x86_64 small and large memory_blocks >>> - Tested on arm64 4KB and 64KB page sizes (for some reason I cannot boot >>> my VM with 16KB page size). >>> >>> Arm64 with 4KB page size behaves like x86_64 after [1], which made section >>> size smaller. >>> With 64KB, the feature gets fenced off due to pageblock alignment. >>> >>> Changes from RFCv3 -> v1: >>> - Addressed feedback from David >>> - Re-order patches >>> >>> Changes from v2 -> v3 (RFC): >>> - Re-order patches (Michal) >>> - Fold "mm,memory_hotplug: Introduce MHP_MEMMAP_ON_MEMORY" in patch#1 >>> - Add kernel boot option to enable this feature (Michal) >>> >>> Changes from v1 -> v2 (RFC): >>> - Addressed feedback provided by David >>> - Add a arch_support_memmap_on_memory to be called >>> from mhp_supports_memmap_on_memory, as atm, >>> only ARM, powerpc and x86_64 have altmat support. >>> >>> [1] https://lore.kernel.org/lkml/cover.1611206601.git.sudaraja@codeaurora.org/ >> >> Let me refloat this one :-) > > Kindly ping :-)
-EBUSY, will try having a look this week!
-- Thanks,
David / dhildenb
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