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 EF41FC433F5 for ; Fri, 27 May 2022 10:47:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345991AbiE0Krz (ORCPT ); Fri, 27 May 2022 06:47:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57018 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239766AbiE0Krw (ORCPT ); Fri, 27 May 2022 06:47:52 -0400 Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9D1A16549 for ; Fri, 27 May 2022 03:47:51 -0700 (PDT) Received: by mail-ed1-x52f.google.com with SMTP id v15so2480864edl.9 for ; Fri, 27 May 2022 03:47:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=/fT1it2KZU2gPXkEvlWdCKHS58rx52JxhTKoYGvWFsI=; b=RRHjbEWLo2//B4DPzz6ni5o3BsNnS6apiG3aXTQnDHlIWIIzK1KijymcswiWzlHFtY f4mkpH7cLheY6r/TX6hJMUhSaomWTESb3RUoKXH78dVbYDcmz3byk7MprwemE3lMoHSW wUK8bcIJJz2Bz+wUoLKwSwowL5/Xky9sXpdWuaXefgSn90q6kXSIt12TUok6I4kXq8fD IYrnZbMGB2z/eoeNFjIU+Rp07MPbWuCQpNtw+/QZHXQl3HVcKre9Qsw+Itnwwu3Zx7ge +D41kdUtz7/9UjllTAR1Z+MUwIwRF9gRjD2uxegnYRu+HC+WtUnOj5wkl/Sn33XOCida +Qgg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=/fT1it2KZU2gPXkEvlWdCKHS58rx52JxhTKoYGvWFsI=; b=jMLh13Nv0D+cwokfbTZJ1lqK6A2WjB7SlCWeSyk2y2Z+LUplgL0F1Pf1YfmV/IIjGf lmPlrm9Z1z8rXxGvoZbNU8dLPbXLYUqioYMJuIghJx5tOpRi7KB1vrTXifDX4ikgpEgw nza+SYth2F3LNmloTeYQdNiW8gaXAYUSTAaljZSMuNV1u7gbaJdxEW/wwNzfDBO5KBGb f6fEBuLFSV7NogizUlg1nmbp0BSF77Rx8DwAQ+KT3+9E2PlwANXMD1juQXsM9BpoFlJc FT05xdYt1jpzldpoNDhLk0tO8xNl0cncbnwbLcfatYyNzEwt/0IPVr4+wqHLKYaTTZQj 7eig== X-Gm-Message-State: AOAM530un/eCrMf9mJvV5HVu+YwpkfSH3zB3Bv2/JxpBxTnJk17hC8BC xkhkIwYY3b/1COt49z3P6lrB0sOCf2/BovB0 X-Google-Smtp-Source: ABdhPJwd8nCaOgRfb6mdXbAKJwYlhIYmPv5Kq25qkC6wi7PtkgjVQe2mNDQE+tW1St0c5Vc6Lsh7gQ== X-Received: by 2002:a05:6402:4392:b0:42b:612:b275 with SMTP id o18-20020a056402439200b0042b0612b275mr41609136edc.288.1653648470130; Fri, 27 May 2022 03:47:50 -0700 (PDT) Received: from orion.localdomain ([93.99.228.15]) by smtp.gmail.com with ESMTPSA id c13-20020a50d64d000000b0042617ba63cfsm1926153edj.89.2022.05.27.03.47.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 May 2022 03:47:49 -0700 (PDT) Received: by orion.localdomain (Postfix, from userid 1003) id 4BD67A028F; Fri, 27 May 2022 12:48:18 +0200 (CEST) From: =?UTF-8?q?Jakub=20Mat=C4=9Bna?= To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, patches@lists.linux.dev, linux-kernel@vger.kernel.org, vbabka@suse.cz, mhocko@kernel.org, mgorman@techsingularity.net, willy@infradead.org, liam.howlett@oracle.com, hughd@google.com, kirill@shutemov.name, riel@surriel.com, rostedt@goodmis.org, peterz@infradead.org, =?UTF-8?q?Jakub=20Mat=C4=9Bna?= Subject: [PATCH 0/2] Refactor of vma_merge and new merge call Date: Fri, 27 May 2022 12:48:08 +0200 Message-Id: <20220527104810.24736-1-matenajakub@gmail.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I am currently working on my master's thesis trying to increase number of merges of VMAs currently failing because of page offset incompatibility and difference in their anon_vmas. The following refactor and added merge call included in this series is just two smaller upgrades I created along the way. The rest of the work is still being worked on but was send to mailing list as a RFC: https://lore.kernel.org/all/20220516125405.1675-1-matenajakub@gmail.com/ This patch series is based on tag v5.18-rc2. Jakub Matěna (2): mm: refactor of vma_merge() mm: add merging after mremap resize mm/mmap.c | 87 +++++++++++++++++++++++------------------------------ mm/mremap.c | 8 +++-- 2 files changed, 43 insertions(+), 52 deletions(-) -- 2.35.1