From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi1-f199.google.com (mail-oi1-f199.google.com [209.85.167.199]) by kanga.kvack.org (Postfix) with ESMTP id 179C26B026B for ; Tue, 2 Oct 2018 07:05:42 -0400 (EDT) Received: by mail-oi1-f199.google.com with SMTP id x194-v6so1002438oix.10 for ; Tue, 02 Oct 2018 04:05:42 -0700 (PDT) Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com. [217.140.101.70]) by mx.google.com with ESMTP id b67-v6si1992981oii.148.2018.10.02.04.05.40 for ; Tue, 02 Oct 2018 04:05:40 -0700 (PDT) From: Will Deacon Subject: [PATCH v2 3/5] x86: pgtable: Drop pXd_none() checks from pXd_free_pYd_table() Date: Tue, 2 Oct 2018 12:06:01 +0100 Message-Id: <1538478363-16255-4-git-send-email-will.deacon@arm.com> In-Reply-To: <1538478363-16255-1-git-send-email-will.deacon@arm.com> References: <1538478363-16255-1-git-send-email-will.deacon@arm.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: cpandya@codeaurora.org, toshi.kani@hpe.com, tglx@linutronix.de, mhocko@suse.com, akpm@linux-foundation.org, sean.j.christopherson@intel.com, Will Deacon Now that the core code checks this for us, we don't need to do it in the backend. Cc: Chintan Pandya Cc: Toshi Kani Cc: Thomas Gleixner Cc: Michal Hocko Cc: Andrew Morton Reviewed-by: Toshi Kani Signed-off-by: Will Deacon --- arch/x86/mm/pgtable.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index ae394552fb94..b4919c44a194 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -796,9 +796,6 @@ int pud_free_pmd_page(pud_t *pud, unsigned long addr) pte_t *pte; int i; - if (pud_none(*pud)) - return 1; - pmd = (pmd_t *)pud_page_vaddr(*pud); pmd_sv = (pmd_t *)__get_free_page(GFP_KERNEL); if (!pmd_sv) @@ -840,9 +837,6 @@ int pmd_free_pte_page(pmd_t *pmd, unsigned long addr) { pte_t *pte; - if (pmd_none(*pmd)) - return 1; - pte = (pte_t *)pmd_page_vaddr(*pmd); pmd_clear(pmd); -- 2.1.4