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UpperCasedChecksum:; SizeAsReceived:938; Count:13 Received: from sha-win-210.shanghai.arm.com (10.1.2.79) by mail.arm.com (10.1.105.66) with Microsoft SMTP Server id 14.3.294.0; Tue, 8 Nov 2016 05:46:24 +0000 From: Huang Shijie To: Subject: [PATCH v2 2/2] arm64: hugetlb: fix the wrong address for several functions Date: Tue, 8 Nov 2016 13:44:39 +0800 Message-ID: <1478583879-14654-3-git-send-email-shijie.huang@arm.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1478583879-14654-1-git-send-email-shijie.huang@arm.com> References: <1478583879-14654-1-git-send-email-shijie.huang@arm.com> MIME-Version: 1.0 X-IncomingHeaderCount: 13 X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:217.140.96.140; IPV:CAL; SCL:-1; CTRY:GB; EFV:NLI; SFV:NSPM; SFS:(10009020)(6009001)(7916002)(2980300002)(438002)(199003)(189002)(6666003)(6636002)(110136003)(2950100002)(47776003)(189998001)(5003940100001)(48376002)(626004)(8936002)(5660300001)(50466002)(8676002)(50226002)(2906002)(586003)(305945005)(4326007)(36756003)(7846002)(106466001)(229853001)(246002)(2351001)(50986999)(356003)(104016004)(76176999)(575784001)(77096005)(26826002)(92566002)(33646002)(86362001)(87936001); 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dwoods@mellanox.com, steve.capper@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, kaly.xin@arm.com, Huang Shijie , akpm@linux-foundation.org, nd@arm.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The libhugetlbfs meets several failures since the following functions do not use the correct address: huge_ptep_get_and_clear() huge_ptep_set_access_flags() huge_ptep_set_wrprotect() huge_ptep_clear_flush() This patch fixes the wrong address for them. Signed-off-by: Huang Shijie --- arch/arm64/mm/hugetlbpage.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c index b0d3f8b..fd96ba7 100644 --- a/arch/arm64/mm/hugetlbpage.c +++ b/arch/arm64/mm/hugetlbpage.c @@ -200,7 +200,7 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, ncontig = find_num_contig(mm, addr, cpte, *cpte, &pgsize); /* save the 1st pte to return */ pte = ptep_get_and_clear(mm, addr, cpte); - for (i = 1; i < ncontig; ++i) { + for (i = 1, addr += pgsize; i < ncontig; ++i, addr += pgsize) { /* * If HW_AFDBM is enabled, then the HW could * turn on the dirty bit for any of the page @@ -238,7 +238,7 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma, pfn = pte_pfn(*cpte); ncontig = find_num_contig(vma->vm_mm, addr, cpte, *cpte, &pgsize); - for (i = 0; i < ncontig; ++i, ++cpte) { + for (i = 0; i < ncontig; ++i, ++cpte, addr += pgsize) { changed = ptep_set_access_flags(vma, addr, cpte, pfn_pte(pfn, hugeprot), @@ -261,7 +261,7 @@ void huge_ptep_set_wrprotect(struct mm_struct *mm, cpte = huge_pte_offset(mm, addr); ncontig = find_num_contig(mm, addr, cpte, *cpte, &pgsize); - for (i = 0; i < ncontig; ++i, ++cpte) + for (i = 0; i < ncontig; ++i, ++cpte, addr += pgsize) ptep_set_wrprotect(mm, addr, cpte); } else { ptep_set_wrprotect(mm, addr, ptep); @@ -279,7 +279,7 @@ void huge_ptep_clear_flush(struct vm_area_struct *vma, cpte = huge_pte_offset(vma->vm_mm, addr); ncontig = find_num_contig(vma->vm_mm, addr, cpte, *cpte, &pgsize); - for (i = 0; i < ncontig; ++i, ++cpte) + for (i = 0; i < ncontig; ++i, ++cpte, addr += pgsize) ptep_clear_flush(vma, addr, cpte); } else { ptep_clear_flush(vma, addr, ptep);