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| author | Ma Wupeng <mawupeng1@huawei.com> | 2022-04-28 23:16:14 -0700 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-04-28 23:16:14 -0700 |
| commit | aa282a157bf8ff79bed9164dc5e0e99f0d9e9755 (patch) | |
| tree | 02a7dcaf9db2775c8181fecc5c69de8a8abd626f | |
| parent | 3c9fe8b8f5e3e30bfa81eeeff4bc34c0fb67b739 (diff) | |
| download | linux-stable-aa282a157bf8ff79bed9164dc5e0e99f0d9e9755.tar.gz linux-stable-aa282a157bf8ff79bed9164dc5e0e99f0d9e9755.tar.bz2 linux-stable-aa282a157bf8ff79bed9164dc5e0e99f0d9e9755.zip | |
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@huawei.com
Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/page_alloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d2588d6226e0..298c7691fb1d 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7821,7 +7821,7 @@ static void __init find_zone_movable_pfns_for_nodes(void) 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; } |