From patchwork Fri May 27 10:48:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Jakub_Mat=C4=9Bna?= X-Patchwork-Id: 12863264 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 98A06C433EF for ; Fri, 27 May 2022 10:47:52 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 27D6D8D0003; Fri, 27 May 2022 06:47:52 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 22CBF8D0001; Fri, 27 May 2022 06:47:52 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0CC048D0003; Fri, 27 May 2022 06:47:52 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id F2D348D0001 for ; Fri, 27 May 2022 06:47:51 -0400 (EDT) Received: from smtpin22.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id C339320974 for ; Fri, 27 May 2022 10:47:51 +0000 (UTC) X-FDA: 79511197542.22.3BDF945 Received: from mail-ed1-f45.google.com (mail-ed1-f45.google.com [209.85.208.45]) by imf14.hostedemail.com (Postfix) with ESMTP id 23B8E100021 for ; Fri, 27 May 2022 10:47:48 +0000 (UTC) Received: by mail-ed1-f45.google.com with SMTP id u20so4919478edd.6 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=p1z0qD3HHmlvJfW7miEQeVBdjmBys5XEmf9ykBAbE1r1JHRpFGiEuPoNB9UV7zBvUL HQtsyDcdhFfhSJRbglmyPDkPYruk22rdypAZL4YhYROEhTDRPwgpBn/yO+009u0o9boW uDGuVtfXVJqmPaFu8ibl7b1GGxtQ3WhscD/Iys3SdF4Oez0vWXykrviqpuVKWwE/0LMZ eTSPY4T7oMQDn9lSfSNYJJrQaiLpdiumxgSWr82C6qcOoder5hvg3zgQrLfzH9El4YEq uDy95Q7Uen5oUEhtccbkKVEWwHPejLJgdiXesApQ9ZoFqLap9aUcxGWUIxQghBpGjnGn n+rg== X-Gm-Message-State: AOAM530xlGdhn/13YIPF1UG5T6CHmVW+EoK0LkpweOxzR3F8NciqxYuc 3ET24Kvr2sszZeYbcJUwlGU= 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_Mat=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_Mat=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 X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 23B8E100021 X-Stat-Signature: o8d55bfc58z5c36e8rk4bga4xrqp643m X-Rspam-User: Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=RRHjbEWL; spf=pass (imf14.hostedemail.com: domain of matenajakub@gmail.com designates 209.85.208.45 as permitted sender) smtp.mailfrom=matenajakub@gmail.com; dmarc=pass (policy=none) header.from=gmail.com X-HE-Tag: 1653648468-6618 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: 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(-)