From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f47.google.com (mail-ed1-f47.google.com [209.85.208.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DC19D46B8 for ; Fri, 27 May 2022 10:47:51 +0000 (UTC) Received: by mail-ed1-f47.google.com with SMTP id c93so3587782edf.7 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=cCjSPKDSPZ/1NNoyHlwbFrl4EQdK/cs2ciWR8yO80681j+QQdBJElRAcyCjq7s93qu UJ3jVbGFA8jflGvg3Nk9fCDhTY23210H7CpIwKXlVWFGEONpyzi8aJtJI9aIv0hg2rd7 eIDx3YLus1FbNdHJzzpAfbaX5APnu/OQw5rY8K7PM9aUcJxt7Qx/stC/IbzwdATo9DK8 YEzMfRZYTXc9NB51DUY07B166xolIzi61T9YK6gi4+GIe0LA1ly46CvJGVWIJvjPiU7u cxhZmpTCarB4F11bBVHB8oJ64JV67BQYe1790Xe5whuliazPQcH7NKgnMLaVhEPGNvKe t6yA== X-Gm-Message-State: AOAM533eFV3WKBHf4ISWhgRwk6KP5zNFyGFLxy9Vc08NlbjHH8ldmADG EJIX5E3ki9a3eqxweaMnvPk= 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 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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