The patch titled
Subject: mm/page_alloc.c: calc the right pfn if page size is not 4K
has been added to the -mm tree. Its filename is
mm-calc-the-right-pfn-if-page-size-is-not-4k.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-calc-the-right-pfn-if-page-size-is-not-4k.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-calc-the-right-pfn-if-page-size-is-not-4k.patch
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------------------------------------------------------
From: Ma Wupeng <mawupeng1@xxxxxxxxxx>
Subject: mm/page_alloc.c: calc the right pfn if page size is not 4K
Previous 0x100000 is used to check the 4G limit in
find_zone_movable_pfns_for_nodes(). This is right in x86 because the page
size can only be 4K. But 16K and 64K are available in arm64. So replace
it with PHYS_PFN(SZ_4G).
Link: https://lkml.kernel.org/r/20220414101314.1250667-8-mawupeng1@xxxxxxxxxx
Signed-off-by: Ma Wupeng <mawupeng1@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Acked-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/page_alloc.c~mm-calc-the-right-pfn-if-page-size-is-not-4k
+++ a/mm/page_alloc.c
@@ -7870,7 +7870,7 @@ static void __init find_zone_movable_pfn
usable_startpfn = memblock_region_memory_base_pfn(r);
- if (usable_startpfn < 0x100000) {
+ if (usable_startpfn < PHYS_PFN(SZ_4G)) {
mem_below_4gb_not_mirrored = true;
continue;
}
_
Patches currently in -mm which might be from mawupeng1@xxxxxxxxxx are
mm-calc-the-right-pfn-if-page-size-is-not-4k.patch
