Linux-mm Archive on lore.kernel.org
 help / color / mirror / Atom feed
From: Vishal Moola <vishal.moola@gmail.com>
To: Dave Hansen <dave.hansen@intel.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org, x86@kernel.org
Cc: Mike Rapoport <rppt@kernel.org>,
	Lu Baolu <baolu.lu@linux.intel.com>,
	xen-devel@lists.xenproject.org, Thomas Gleixner <tglx@kernel.org>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Andy Lutomirski <luto@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Juergen Gross <jgross@suse.com>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Vishal Moola <vishal.moola@gmail.com>,
	William Kucharski <william.kucharski@linux.dev>
Subject: [PATCH v2 5/9] x86/mm: Convert sync_global_pgds_l5() to ptdescs
Date: Mon, 29 Jun 2026 11:57:38 -0700	[thread overview]
Message-ID: <20260629185742.126987-6-vishal.moola@gmail.com> (raw)
In-Reply-To: <20260629185742.126987-1-vishal.moola@gmail.com>

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

Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: William Kucharski <william.kucharski@linux.dev>
Signed-off-by: Vishal Moola <vishal.moola@gmail.com>
---
 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



  parent reply	other threads:[~2026-06-29 18:59 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-29 18:57 [PATCH v2 0/9] Convert x86 pgd_lists to ptdescs Vishal Moola
2026-06-29 18:57 ` [PATCH v2 1/9] x86/mm/pat: Use IS_ENABLED() instead of ifdef Vishal Moola
2026-06-29 18:57 ` [PATCH v2 2/9] x86/mm/pat: Convert __set_pmd_pte() to ptdescs Vishal Moola
2026-06-29 18:57 ` [PATCH v2 3/9] x86/mm/pat: Convert collapse_pmd_page() " Vishal Moola
2026-06-29 18:57 ` [PATCH v2 4/9] x86/mm: Convert arch_sync_kernel_mappings() " Vishal Moola
2026-06-29 18:57 ` Vishal Moola [this message]
2026-06-29 18:57 ` [PATCH v2 6/9] x86/mm: Convert sync_global_pgds_l4() " Vishal Moola
2026-06-29 18:57 ` [PATCH v2 7/9] x86/mm: Convert pgd_page_get_mm() " Vishal Moola
2026-06-29 18:57 ` [PATCH v2 8/9] x86/xen: Convert xen_mm_pin_all() " Vishal Moola
2026-06-29 18:57 ` [PATCH v2 9/9] x86/xen: Convert xen_mm_unpin_all() " Vishal Moola
2026-07-06 17:48 ` [PATCH v2 0/9] Convert x86 pgd_lists " Vishal Moola

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20260629185742.126987-6-vishal.moola@gmail.com \
    --to=vishal.moola@gmail.com \
    --cc=baolu.lu@linux.intel.com \
    --cc=boris.ostrovsky@oracle.com \
    --cc=bp@alien8.de \
    --cc=dave.hansen@intel.com \
    --cc=hpa@zytor.com \
    --cc=jgross@suse.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=luto@kernel.org \
    --cc=mingo@redhat.com \
    --cc=peterz@infradead.org \
    --cc=rppt@kernel.org \
    --cc=tglx@kernel.org \
    --cc=william.kucharski@linux.dev \
    --cc=x86@kernel.org \
    --cc=xen-devel@lists.xenproject.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox