mm/mm_init: drop overlap_memmap_init()

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When ZONE_NORMAL and ZONE_MOVABLE could overlap because kernelcore=mirror
didn't reduce the span of ZONE_NORMAL, initialization of the memory map had
to skip overlapping pages during initialization of ZONE_MOVABLE to avoid
double initialization of the same struct pages.

Since kernelcore=mirror works now the same way as other variants of
kernelcore=/movablecore=, and adjusts the span of ZONE_NORMAL, there can't
be an overlap between ZONE_NORMAL and ZONE_MOVABLE.

Remove overlap_memmap_init().

Co-developed-by: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Link: https://patch.msgid.link/20260630072212.624305-3-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>

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Mike Rapoport (Microsoft) 2026-06-30 10:22:12 +03:00

parent eb0e5b6136

commit f042b69ebb

1 changed files with 0 additions and 24 deletions

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mm/mm_init.c

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