From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 26FAFC2FB for ; Mon, 12 May 2025 00:51:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747011076; cv=none; b=P8ZwOj93xw+wpkrkM58JvBJnfy11Ekaz/DBExxjTG7Jwj2kLVpugtCM8ompEExYuQUzTeDXJfNhF6A3vh0hH1KVNYdzxtvZtBtlmX8kfELSDmktwfGsshiLfFxKwuce8hZzkevfvuD3/1tXaPgTF+IEU3F00Uoy0QkQB/K0FY+8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747011076; c=relaxed/simple; bh=+W0YOmrBz68q5fji9D0C+Ko81DlYZgfQx7LvbL1HdFQ=; h=Date:To:From:Subject:Message-Id; b=W5jtYcgBYAQ/fxtl0vtx4CFCiu7/RnHBhCmGEvraDWKPNJ6CdRZglFHIz3r9T4z2TeFRW5LBtPhkbw+EXkrBvP4HRmzI14Vr+MoVk6xBqCBIdGa0Bsb85YoG2jsGlWARI+b3EoXWQsnCMpHqcDQKLocFmU+nSdpPk8GZZWGJyZE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=VLfVB+jt; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="VLfVB+jt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id ED1B2C4CEE4; Mon, 12 May 2025 00:51:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1747011076; bh=+W0YOmrBz68q5fji9D0C+Ko81DlYZgfQx7LvbL1HdFQ=; h=Date:To:From:Subject:From; b=VLfVB+jtC0QyCVixtZwzQw8DujhkzzdhYnNsnNSeHW/WGHWdfhd4az8G5hQBSAirt qhn0Lf0C4ma7Gs3ILhBM96XioRMpUZHHg1jFF4X/tYgH5O0n1NaU/XxjJJFPVAH3Vu sxHuwZgrrFslvtJcRt/p1TfeBwLc+dO3pGtTnosI= Date: Sun, 11 May 2025 17:51:15 -0700 To: mm-commits@vger.kernel.org,zhengqi.arch@bytedance.com,yang@os.amperecomputing.com,x86@kernel.org,willy@infradead.org,will@kernel.org,ryan.roberts@arm.com,rppt@kernel.org,peterz@infradead.org,paul.walmsley@sifive.com,palmer@dabbelt.com,mpe@ellerman.id.au,mark.rutland@arm.com,maddy@linux.ibm.com,linus.walleij@linaro.org,geert@linux-m68k.org,davem@davemloft.net,dave.hansen@linux.intel.com,catalin.marinas@arm.com,aou@eecs.berkeley.edu,andreas@gaisler.com,agordeev@linux.ibm.com,kevin.brodsky@arm.com,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] x86-pgtable-always-use-pte_free_kernel.patch removed from -mm tree Message-Id: <20250512005115.ED1B2C4CEE4@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: x86: pgtable: always use pte_free_kernel() has been removed from the -mm tree. Its filename was x86-pgtable-always-use-pte_free_kernel.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Kevin Brodsky Subject: x86: pgtable: always use pte_free_kernel() Date: Tue, 8 Apr 2025 10:52:12 +0100 Page table pages are normally freed using the appropriate helper for the given page table level. On x86, pud_free_pmd_page() and pmd_free_pte_page() are an exception to the rule: they call free_page() directly. Constructor/destructor calls are about to be introduced for kernel PTEs. To avoid missing dtor calls in those helpers, free the PTE pages using pte_free_kernel() instead of free_page(). While at it also use pmd_free() instead of calling pagetable_dtor() explicitly at the PMD level. Link: https://lkml.kernel.org/r/20250408095222.860601-3-kevin.brodsky@arm.com Signed-off-by: Kevin Brodsky Acked-by: Dave Hansen Cc: Albert Ou Cc: Andreas Larsson Cc: Catalin Marinas Cc: David S. Miller Cc: Geert Uytterhoeven Cc: Linus Waleij Cc: Madhavan Srinivasan Cc: Mark Rutland Cc: Matthew Wilcox (Oracle) Cc: Michael Ellerman Cc: Mike Rapoport Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Peter Zijlstra Cc: Qi Zheng Cc: Ryan Roberts Cc: Will Deacon Cc: Cc: Yang Shi Cc: Alexander Gordeev Signed-off-by: Andrew Morton --- arch/x86/mm/pgtable.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) --- a/arch/x86/mm/pgtable.c~x86-pgtable-always-use-pte_free_kernel +++ a/arch/x86/mm/pgtable.c @@ -809,14 +809,13 @@ int pud_free_pmd_page(pud_t *pud, unsign for (i = 0; i < PTRS_PER_PMD; i++) { if (!pmd_none(pmd_sv[i])) { pte = (pte_t *)pmd_page_vaddr(pmd_sv[i]); - free_page((unsigned long)pte); + pte_free_kernel(&init_mm, pte); } } free_page((unsigned long)pmd_sv); - pagetable_dtor(virt_to_ptdesc(pmd)); - free_page((unsigned long)pmd); + pmd_free(&init_mm, pmd); return 1; } @@ -839,7 +838,7 @@ int pmd_free_pte_page(pmd_t *pmd, unsign /* INVLPG to clear all paging-structure caches */ flush_tlb_kernel_range(addr, addr + PAGE_SIZE-1); - free_page((unsigned long)pte); + pte_free_kernel(&init_mm, pte); return 1; } _ Patches currently in -mm which might be from kevin.brodsky@arm.com are