[PATCH 2/9] x86/mm/pat: Convert __set_pmd_pte() to ptdescs

From: Vishal Moola

Date: Wed May 27 2026 - 10:08:26 EST


Convert __set_pmd_pte() to ptdescs in preparation for the eventual
splitting of ptdescs from struct page.

Signed-off-by: Vishal Moola <vishal.moola@xxxxxxxxx>
---
arch/x86/mm/pat/set_memory.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/mm/pat/set_memory.c b/arch/x86/mm/pat/set_memory.c
index 3b9032a3f315..93cb71451ce2 100644
--- a/arch/x86/mm/pat/set_memory.c
+++ b/arch/x86/mm/pat/set_memory.c
@@ -890,15 +890,15 @@ static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
set_pte_atomic(kpte, pte);

if (IS_ENABLED(CONFIG_X86_32)) {
- struct page *page;
+ struct ptdesc *ptdesc;

- list_for_each_entry(page, &pgd_list, lru) {
+ list_for_each_entry(ptdesc, &pgd_list, pt_list) {
pgd_t *pgd;
p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;

- pgd = (pgd_t *)page_address(page) + pgd_index(address);
+ pgd = (pgd_t *)ptdesc_address(ptdesc) + pgd_index(address);
p4d = p4d_offset(pgd, address);
pud = pud_offset(p4d, address);
pmd = pmd_offset(pud, address);
--
2.54.0