From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68A27C4321E for ; Mon, 28 Nov 2022 23:10:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234669AbiK1XKl (ORCPT ); Mon, 28 Nov 2022 18:10:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34870 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234628AbiK1XK1 (ORCPT ); Mon, 28 Nov 2022 18:10:27 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3175D2DABA for ; Mon, 28 Nov 2022 15:10:26 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id EE5D5614DE for ; Mon, 28 Nov 2022 23:10:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 543ACC433C1; Mon, 28 Nov 2022 23:10:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1669677024; bh=QKXBOlXyKMYfa2Y53yuLpSJo/qzcFbggslqmj3SAsL8=; h=Date:To:From:Subject:From; b=B4XMExk84K3gEKoW/znXcLIBrTjTBn1A4PH3tL3nhKlNZAS6AknmT+oMVgPtH7BLD zDr2H7Q2NqkL6HXVx7ouHm67MjIRrjgIY+iVjF1C3IyAD+6YYgi8jJPYxOge48n4Nq Ks0Ys1ziqwGX7YyzZoMuyTj70X+YHbMw170m80+E= Date: Mon, 28 Nov 2022 15:10:23 -0800 To: mm-commits@vger.kernel.org, zhoumin@loongson.cn, will@kernel.org, tsbogend@alpha.franken.de, songmuchun@bytedance.com, philmd@linaro.org, peterz@infradead.org, luto@kernel.org, lixuefeng@loongson.cn, kernel@xen0n.name, jiaxun.yang@flygoat.com, guoren@kernel.org, dinguyen@kernel.org, dave.hansen@linux.intel.com, chenhuacai@loongson.cn, catalin.marinas@arm.com, arnd@arndb.de, chenfeiyang@loongson.cn, akpm@linux-foundation.org From: Andrew Morton Subject: + loongarch-enable-arch_want_hugetlb_page_optimize_vmemmap.patch added to mm-unstable branch Message-Id: <20221128231024.543ACC433C1@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: LoongArch: enable ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP has been added to the -mm mm-unstable branch. Its filename is loongarch-enable-arch_want_hugetlb_page_optimize_vmemmap.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/loongarch-enable-arch_want_hugetlb_page_optimize_vmemmap.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Feiyang Chen Subject: LoongArch: enable ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP Date: Thu, 27 Oct 2022 20:52:53 +0800 The feature of minimizing overhead of struct page associated with each HugeTLB page is implemented on x86_64. However, the infrastructure of this feature is already there, so just select ARCH_WANT_HUGETLB_PAGE_ OPTIMIZE_VMEMMAP is enough to enable this feature for LoongArch. Link: https://lkml.kernel.org/r/20221027125253.3458989-5-chenhuacai@loongson.cn Signed-off-by: Feiyang Chen Signed-off-by: Huacai Chen Reviewed-by: Philippe Mathieu-Daudé Acked-by: Muchun Song Reviewed-by: Arnd Bergmann Cc: Andy Lutomirski Cc: Catalin Marinas Cc: Dave Hansen Cc: Dinh Nguyen Cc: Guo Ren Cc: Jiaxun Yang Cc: Min Zhou Cc: Peter Zijlstra Cc: Thomas Bogendoerfer Cc: Will Deacon Cc: Xuefeng Li Cc: Xuerui Wang Signed-off-by: Andrew Morton --- arch/loongarch/Kconfig | 1 + 1 file changed, 1 insertion(+) --- a/arch/loongarch/Kconfig~loongarch-enable-arch_want_hugetlb_page_optimize_vmemmap +++ a/arch/loongarch/Kconfig @@ -52,6 +52,7 @@ config LOONGARCH select ARCH_USE_QUEUED_RWLOCKS select ARCH_USE_QUEUED_SPINLOCKS select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT + select ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP select ARCH_WANT_LD_ORPHAN_WARN select ARCH_WANTS_NO_INSTR select BUILDTIME_TABLE_SORT _ Patches currently in -mm which might be from chenfeiyang@loongson.cn are mipsloongarchnios2-adjust-prototypes-of-pd_init.patch loongarch-add-sparse-memory-vmemmap-support.patch mm-sparse-vmemmap-generalise-vmemmap_populate_hugepages.patch loongarch-enable-arch_want_hugetlb_page_optimize_vmemmap.patch