From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: [patch 125/131] powerpc/mm: drop platform defined pmd_mknotpresent() Date: Wed, 03 Jun 2020 16:03:41 -0700 Message-ID: <20200603230341._b4SNc_Z5%akpm@linux-foundation.org> References: <20200603155549.e041363450869eaae4c7f05b@linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.29.99]:47830 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726482AbgFCXIj (ORCPT ); Wed, 3 Jun 2020 19:08:39 -0400 In-Reply-To: <20200603155549.e041363450869eaae4c7f05b@linux-foundation.org> Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: akpm@linux-foundation.org, anshuman.khandual@arm.com, benh@kernel.crashing.org, bp@alien8.de, catalin.marinas@arm.com, dave.hansen@linux.intel.com, hpa@zytor.com, linux-mm@kvack.org, linux@armlinux.org.uk, luto@kernel.org, mingo@redhat.com, mm-commits@vger.kernel.org, mpe@ellerman.id.au, paulus@samba.org, peterz@infradead.org, rostedt@goodmis.org, tglx@linutronix.de, torvalds@linux-foundation.org, tsbogend@alpha.franken.de, vgupta@synopsys.com, will@kernel.org From: Anshuman Khandual Subject: powerpc/mm: drop platform defined pmd_mknotpresent() Patch series "mm/thp: Rename pmd_mknotpresent() as pmd_mknotvalid()", v2. This series renames pmd_mknotpresent() as pmd_mknotvalid(). Before that it drops an existing pmd_mknotpresent() definition from powerpc platform which was never required as it defines it's pmdp_invalidate() through subscribing __HAVE_ARCH_PMDP_INVALIDATE. This does not create any functional change. This rename was suggested by Catalin during a previous discussion while we were trying to change the THP helpers on arm64 platform for migration. https://patchwork.kernel.org/patch/11019637/ This patch (of 2): Platform needs to define pmd_mknotpresent() for generic pmdp_invalidate() only when __HAVE_ARCH_PMDP_INVALIDATE is not subscribed. Otherwise platform specific pmd_mknotpresent() is not required. Hence just drop it. Link: http://lkml.kernel.org/r/1587520326-10099-1-git-send-email-anshuman.khandual@arm.com Link: http://lkml.kernel.org/r/1584680057-13753-1-git-send-email-anshuman.khandual@arm.com Link: http://lkml.kernel.org/r/1584680057-13753-2-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Cc: Benjamin Herrenschmidt Cc: Michael Ellerman Cc: Paul Mackerras Cc: Vineet Gupta Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: "H. Peter Anvin" Cc: Steven Rostedt Cc: Dave Hansen Cc: Andy Lutomirski Cc: Peter Zijlstra Signed-off-by: Andrew Morton --- arch/powerpc/include/asm/book3s/64/pgtable.h | 4 ---- 1 file changed, 4 deletions(-) --- a/arch/powerpc/include/asm/book3s/64/pgtable.h~powerpc-mm-drop-platform-defined-pmd_mknotpresent +++ a/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -1168,10 +1168,6 @@ static inline int pmd_large(pmd_t pmd) return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE)); } -static inline pmd_t pmd_mknotpresent(pmd_t pmd) -{ - return __pmd(pmd_val(pmd) & ~_PAGE_PRESENT); -} /* * For radix we should always find H_PAGE_HASHPTE zero. Hence * the below will work for radix too _