[tip: x86/mm] x86/mm/pat: Convert __set_pmd_pte() to ptdescs

["tip-bot2 for Vishal Moola" <tip-bot2@linutronix.de>]

The following commit has been merged into the x86/mm branch of tip:

Commit-ID:     e27d938b0de86304f12c89706b8034f89f015077
Gitweb:        https://git.kernel.org/tip/e27d938b0de86304f12c89706b8034f89f015077
Author:        Vishal Moola <vishal.moola@gmail.com>
AuthorDate:    Mon, 29 Jun 2026 11:57:35 -07:00
Committer:     Dave Hansen <dave.hansen@linux.intel.com>
CommitterDate: Mon, 13 Jul 2026 15:55:10 -07:00

x86/mm/pat: Convert __set_pmd_pte() to ptdescs

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

Signed-off-by: Vishal Moola <vishal.moola@gmail.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: William Kucharski <william.kucharski@linux.dev>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Link: https://patch.msgid.link/20260629185742.126987-3-vishal.moola@gmail.com
---
 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 3b9032a..93cb714 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);