[PATCH 5/9] x86/mm: Convert sync_global_pgds_l5() to ptdescs

From: Vishal Moola

Date: Wed May 27 2026 - 10:04:48 EST


Convert sync_global_pgds_l5() to ptdescs in preparation for the
eventual splitting of ptdescs from struct page.

Signed-off-by: Vishal Moola <vishal.moola@xxxxxxxxx>
---
arch/x86/mm/init_64.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index df27379d4bb4..e89b51aea2cf 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -136,7 +136,7 @@ static void sync_global_pgds_l5(unsigned long start, unsigned long end)

for (addr = start; addr <= end; addr = ALIGN(addr + 1, PGDIR_SIZE)) {
const pgd_t *pgd_ref = pgd_offset_k(addr);
- struct page *page;
+ struct ptdesc *ptdesc;

/* Check for overflow */
if (addr < start)
@@ -146,13 +146,13 @@ static void sync_global_pgds_l5(unsigned long start, unsigned long end)
continue;

spin_lock(&pgd_lock);
- list_for_each_entry(page, &pgd_list, lru) {
+ list_for_each_entry(ptdesc, &pgd_list, pt_list) {
pgd_t *pgd;
spinlock_t *pgt_lock;

- pgd = (pgd_t *)page_address(page) + pgd_index(addr);
+ pgd = (pgd_t *)ptdesc_address(ptdesc) + pgd_index(addr);
/* the pgt_lock only for Xen */
- pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
+ pgt_lock = &pgd_page_get_mm(ptdesc_page(ptdesc))->page_table_lock;
spin_lock(pgt_lock);

if (!pgd_none(*pgd_ref) && !pgd_none(*pgd))
--
2.54.0