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| author | Zhenhua Huang <quic_zhenhuah@quicinc.com> | 2025-03-21 10:00:19 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2025-03-28 22:18:29 +0300 |
| commit | 89f43e1ce6f60d4f44399059595ac47f7a90a393 (patch) | |
| tree | 992944f392103ebf5d3d0238a8c000cfb9662929 /scripts/generate_rust_target.rs | |
| parent | 64fa6b9322a904198589c0479dca6f2ed7f2eb04 (diff) | |
| download | linux-89f43e1ce6f60d4f44399059595ac47f7a90a393.tar.xz | |
arm64: mm: Correct the update of max_pfn
Hotplugged memory can be smaller than the original memory. For example,
on my target:
root@genericarmv8:~# cat /sys/kernel/debug/memblock/memory
0: 0x0000000064005000..0x0000000064023fff 0 NOMAP
1: 0x0000000064400000..0x00000000647fffff 0 NOMAP
2: 0x0000000068000000..0x000000006fffffff 0 DRV_MNG
3: 0x0000000088800000..0x0000000094ffefff 0 NONE
4: 0x0000000094fff000..0x0000000094ffffff 0 NOMAP
max_pfn will affect read_page_owner. Therefore, it should first compare and
then select the larger value for max_pfn.
Fixes: 8fac67ca236b ("arm64: mm: update max_pfn after memory hotplug")
Cc: <stable@vger.kernel.org> # 6.1.x
Signed-off-by: Zhenhua Huang <quic_zhenhuah@quicinc.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20250321070019.1271859-1-quic_zhenhuah@quicinc.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'scripts/generate_rust_target.rs')
0 files changed, 0 insertions, 0 deletions