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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 47DD8ECAAD2 for ; Thu, 1 Sep 2022 23:17:47 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 8C5408007C; Thu, 1 Sep 2022 19:17:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 874A98000D; Thu, 1 Sep 2022 19:17:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 73C478007C; Thu, 1 Sep 2022 19:17:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 603CF8000D for ; Thu, 1 Sep 2022 19:17:46 -0400 (EDT) Received: from smtpin23.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 325CFA05D0 for ; Thu, 1 Sep 2022 23:17:46 +0000 (UTC) X-FDA: 79865080932.23.0BBA729 Received: from mail-yb1-f180.google.com (mail-yb1-f180.google.com [209.85.219.180]) by imf17.hostedemail.com (Postfix) with ESMTP id D18EF40041 for ; Thu, 1 Sep 2022 23:17:45 +0000 (UTC) Received: by mail-yb1-f180.google.com with SMTP id j204so933368ybj.2 for ; Thu, 01 Sep 2022 16:17:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date; bh=LLe4P0CDKZNu2y/iLQFOmqm2xVCa1+xC0+/2UAKABJs=; b=E800dH7PG7qGduh6oSah7WQAwmrsM+wQmDZjjqdBAR60RvrxBZHO23f04n2iXHj6B6 JP4sBRMEb5m0iPCXbYazGmBCzu7qChwl/ipzAmIhLadRiKX3Y0zySsPNlYd0h+LcoxL8 5FNxATVqNyLa1BoYf6Cxlq+XP5qZplVJPHSMPHn1kfsbAjFzQxAMb9VoJYRqdqVYgEwr U+TKjEqBLNEszFZU9PUc/x9OXZ/4B2ib6Q/EZSxGRaxVsTNJo0XeGgkfBjLjXtDUFglC Q2eTqe1FllFFqOAiwsRUf4TETNOa1mHZ6WH7dmCthCaB5IO6/fwVnji8K+vdyqp3MbuZ tFcA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date; bh=LLe4P0CDKZNu2y/iLQFOmqm2xVCa1+xC0+/2UAKABJs=; b=3v7UvVb79lnGFeYwNI+NnOUmT3xGK0lgpdgDIzAw5r2P7o9gqRLG8/czFma6+rZ8ih dHQkOybhqcSvtGROFaa72KRQ3XZECuiwgTTPkZ5ttFqIQYCDrDPBgYIBa9SHmR8gwGWc EM2y+8c2NdqaUaG9v+qpTTtuvvndxXRL+bYQM7XffWMmIC+hD4bQp91qyoUlUvPG4flP d7AVrdzbDBa6mrd5sf7Wc9PI3j7c91psydnKvtsz1b6ajt9dURRnG7hPdtZ8LccY+6xh xtd9IQTf1vApMuWI4lS5QIJ5Xy04qL2pJKZOi4EWPJhJT89LguLTb5QKjp5raPcxzfvI dkgA== X-Gm-Message-State: ACgBeo3rOs5q4TOe+GYYcd4oAJMaOO7fmgmvUYRLek32vztPiSRSkDfX akkWUTacf+0sDafUFxi1WhvqJ/ngFmjNqOiMpBN6tQ== X-Google-Smtp-Source: AA6agR6jFuUOVZTVV0+XfDd0He4Hrb9XV2PsfvVugkFPyYicaO90qEw/qesq5yP63n03v6KmDubjqCQiaNOXXMGy9zw= X-Received: by 2002:a05:6902:705:b0:695:b3b9:41bc with SMTP id k5-20020a056902070500b00695b3b941bcmr21131741ybt.426.1662074264903; Thu, 01 Sep 2022 16:17:44 -0700 (PDT) MIME-Version: 1.0 References: <20220901173516.702122-1-surenb@google.com> <20220901173516.702122-24-surenb@google.com> <20220901202052.xfaeuhmosheml2gz@moria.home.lan> In-Reply-To: <20220901202052.xfaeuhmosheml2gz@moria.home.lan> From: Suren Baghdasaryan Date: Thu, 1 Sep 2022 16:17:33 -0700 Message-ID: Subject: Re: [RFC PATCH RESEND 23/28] x86/mm: define ARCH_SUPPORTS_PER_VMA_LOCK To: Kent Overstreet Cc: Andrew Morton , Michel Lespinasse , Jerome Glisse , Michal Hocko , Vlastimil Babka , Johannes Weiner , Mel Gorman , Davidlohr Bueso , Matthew Wilcox , "Liam R. Howlett" , Peter Zijlstra , Laurent Dufour , Laurent Dufour , "Paul E . McKenney" , Andy Lutomirski , Song Liu , Peter Xu , David Hildenbrand , dhowells@redhat.com, Hugh Dickins , bigeasy@linutronix.de, David Rientjes , Axel Rasmussen , Joel Fernandes , Minchan Kim , kernel-team , linux-mm , linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, x86@kernel.org, LKML Content-Type: text/plain; charset="UTF-8" ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1662074265; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=LLe4P0CDKZNu2y/iLQFOmqm2xVCa1+xC0+/2UAKABJs=; b=kzmeXJ+uWAJmbtQE+MPBxYeuPdljg8Y4RYcUZuWLD7YzLWABJIIuDdSz87mN0T/jpshEy/ m8ahr86tnN1Qc7SHmY7/0Em90Nz47mfYUS5qclpPlGyKjQQU1TTEhGUEA2vvR4ooSKzhfP eh/eewnXnuJneLOHlx3eyLTS0sMsxB8= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=E800dH7P; spf=pass (imf17.hostedemail.com: domain of surenb@google.com designates 209.85.219.180 as permitted sender) smtp.mailfrom=surenb@google.com; dmarc=pass (policy=reject) header.from=google.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1662074265; a=rsa-sha256; cv=none; b=NCmDUrUZhe7+oE4pmwlEyngKDfhSh7UO7jubXv08HR5HS084g+bnXEn1tg6Voo6fReB+30 utp8KLRcnh1fURJ9vtLaw74bd4cACh+o4EmYojFk3kYwnC4owctWNL1+cuDvNY7k5c1BsF 6qbSxdB4Nz0JiVXC6Sb9/7KeFvXtw9Q= Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=E800dH7P; spf=pass (imf17.hostedemail.com: domain of surenb@google.com designates 209.85.219.180 as permitted sender) smtp.mailfrom=surenb@google.com; dmarc=pass (policy=reject) header.from=google.com X-Rspamd-Server: rspam11 X-Stat-Signature: r9yq3nt77hjij3j8pukynh5dxdnd1wxo X-Rspamd-Queue-Id: D18EF40041 X-Rspam-User: X-HE-Tag: 1662074265-885561 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Sep 1, 2022 at 1:21 PM Kent Overstreet wrote: > > On Thu, Sep 01, 2022 at 10:35:11AM -0700, Suren Baghdasaryan wrote: > > Set ARCH_SUPPORTS_PER_VMA_LOCK so that the per-VMA lock support can be > > compiled on this architecture. > > > > Signed-off-by: Suren Baghdasaryan > > --- > > arch/x86/Kconfig | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > > index f9920f1341c8..ee19de020b27 100644 > > --- a/arch/x86/Kconfig > > +++ b/arch/x86/Kconfig > > @@ -27,6 +27,7 @@ config X86_64 > > # Options that are inherently 64-bit kernel only: > > select ARCH_HAS_GIGANTIC_PAGE > > select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 > > + select ARCH_SUPPORTS_PER_VMA_LOCK > > select ARCH_USE_CMPXCHG_LOCKREF > > select HAVE_ARCH_SOFT_DIRTY > > select MODULES_USE_ELF_RELA > > I think you could combine this with the previous path (and similarly on other > architectures) - they logically go together. Thanks for the feedback! I see no downside to that, so unless there are objections I will combine them in the next version.