x86/mm/pat: Convert pmd code to use page table apis

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Use the ptdesc APIs for all page table allocation and free sites to allow
their separate allocation from struct page in the future. Convert the PMD
allocation and free sites to use the generic page table APIs, as they
already use ptdescs.

Pass through init_mm since these are kernel page tables, as
pmd_alloc_one() requires it to identify kernel page tables. Because the
generic implementation does not use the second argument, pass a
placeholder to avoid reimplementing it or risking breakage on other
architectures.

Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Link: https://patch.msgid.link/20260303194828.1406905-3-vishal.moola@gmail.com

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Vishal Moola (Oracle) 2026-03-03 11:48:25 -08:00 • committed by Dave Hansen

parent c22ca4a963

commit 6ba1917a4c

1 changed files with 6 additions and 2 deletions

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arch/x86/mm/pat/set_memory.c

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