From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:48590 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751231AbdARH0M (ORCPT ); Wed, 18 Jan 2017 02:26:12 -0500 Subject: Patch "arm64: hugetlb: fix the wrong return value for huge_ptep_set_access_flags" has been added to the 4.9-stable tree To: shijie.huang@arm.com, catalin.marinas@arm.com, gregkh@linuxfoundation.org Cc: , From: Date: Wed, 18 Jan 2017 08:26:07 +0100 Message-ID: <148472436760178@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled arm64: hugetlb: fix the wrong return value for huge_ptep_set_access_flags to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: arm64-hugetlb-fix-the-wrong-return-value-for-huge_ptep_set_access_flags.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 69d012345a1a32d3f03957f14d972efccc106a98 Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Wed, 11 Jan 2017 14:02:00 +0800 Subject: arm64: hugetlb: fix the wrong return value for huge_ptep_set_access_flags From: Huang Shijie commit 69d012345a1a32d3f03957f14d972efccc106a98 upstream. In current code, the @changed always returns the last one's status for the huge page with the contiguous bit set. This is really not what we want. Even one of the PTEs is changed, we should tell it to the caller. This patch fixes this issue. Fixes: 66b3923a1a0f ("arm64: hugetlb: add support for PTE contiguous bit") Signed-off-by: Huang Shijie Signed-off-by: Catalin Marinas Signed-off-by: Greg Kroah-Hartman --- arch/arm64/mm/hugetlbpage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/arm64/mm/hugetlbpage.c +++ b/arch/arm64/mm/hugetlbpage.c @@ -239,7 +239,7 @@ int huge_ptep_set_access_flags(struct vm ncontig = find_num_contig(vma->vm_mm, addr, cpte, *cpte, &pgsize); for (i = 0; i < ncontig; ++i, ++cpte, addr += pgsize) { - changed = ptep_set_access_flags(vma, addr, cpte, + changed |= ptep_set_access_flags(vma, addr, cpte, pfn_pte(pfn, hugeprot), dirty); Patches currently in stable-queue which might be from shijie.huang@arm.com are queue-4.9/arm64-hugetlb-fix-the-wrong-address-for-several-functions.patch queue-4.9/arm64-hugetlb-remove-the-wrong-pmd-check-in-find_num_contig.patch queue-4.9/arm64-hugetlb-fix-the-wrong-return-value-for-huge_ptep_set_access_flags.patch