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x86/mm: Convert sync_global_pgds_l5() to ptdescs

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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@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/20260629185742.126987-6-vishal.moola@gmail.com
This commit is contained in:
Vishal Moola 2026-06-29 11:57:38 -07:00 committed by Dave Hansen
parent 46ee485bb9
commit 90c881895f
1 changed files with 4 additions and 4 deletions
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8
arch/x86/mm/init_64.c
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@ -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))