powerpc: fadump: pair alloc_pages_exact() with free_pages_exact()

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fadump allocates buffers with alloc_pages_exact(), but then marks them
as reserved and frees using free_reserved_area().

This is completely unnecessary and the pages allocated with
alloc_pages_exact() can be naturally freed with free_pages_exact().

Replace freeing of memory in fadump_free_buffer() with
free_pages_exact() and simplify allocation code so that it won't mark
allocated pages as reserved.

Link: https://patch.msgid.link/20260323074836.3653702-3-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>

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Mike Rapoport (Microsoft) 2026-03-23 09:48:29 +02:00

parent c12c3e1507

commit 25ee3aff99

1 changed files with 2 additions and 14 deletions

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arch/powerpc/kernel/fadump.c

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