From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f53.google.com (mail-ej1-f53.google.com [209.85.218.53]) (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 BD569A53 for ; Thu, 2 Jun 2022 14:56:25 +0000 (UTC) Received: by mail-ej1-f53.google.com with SMTP id fu3so8998362ejc.7 for ; Thu, 02 Jun 2022 07:56:25 -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=zCSSFQ2L4JXpdmXrE1zZ/i+Swl9oJ6KcROQdZ1N3Ha8=; b=ITZNq6NL54WMwUJGlIfxvdXqqOqhvvCVLdmzhwDzjVYtZoXqK/cElJsPRARmEaVe3x n+jVzu4v3nvlV2c7IJFSYkm5LXlZzZH2ujl0FiOQ9Z9rnMLleRRdaFJDfwhCfmx/Zv8L XNqtFYriy+qTO3tQmgY6aqVsGhqB7Hrww9Ypy9DFg/vMxYzcXYOaSe7BcTjQbClI9Syl 2ysK/PXoPGwVP3Ns8dIW9wZRm500ED6Jr57O8MBF/3Yzl0wY+xHa79x1ja1/6hBc8XCQ BFQLCWqTG0ijre9u3cVf0qTPjjUX9qpH/zObaEgGaXgO+sMB0rMDymdaGebAESww0kax YqHA== 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=zCSSFQ2L4JXpdmXrE1zZ/i+Swl9oJ6KcROQdZ1N3Ha8=; b=PG/VIZ3AsneF/HXmN+tnR+vB4ttTrf3ZV2MGta37g/WelcqR57a/pVuYMfsOI+77mZ olOmuDWeb0OJL+wZNmQxf4e2nkIV+ALdJL6objxzdU8JTTVxSDtf8hAjrxcqoN6MF4Ao abaL6XL7kgWd9/D6DC2npj+1tIfNSeYMW52ryWeDxR36NYBP4Wgm2I73iuTgxwBMgWAC DofCyyqXXAMJQxNR5UWk9u1swMZd7Gjqs3gRJBFmPCpfOAW4fleO4mWE+S7GYxmlb5Xd RkVlujZwQePf/I8S0VPmxPVmNniNh+mUk2nVz+n5eRn8ExjlBx+1PjFrjeAyCJSdICsj D7HA== X-Gm-Message-State: AOAM530v0zsSRTUBC4RhedBDCtsTh+EvZN1ewzcWKHzRIXrfaRDVIvvX 4rQxckLbTT5It8cg8CwapXg= X-Google-Smtp-Source: ABdhPJyHM+S/vrNSui5eDofEaJLcLlz5Ju+mz8n8aLIwipJ9sog0+AFkOD1upwCZfy9Aj/HP+VkkrQ== X-Received: by 2002:a17:907:6d1f:b0:6fe:e53b:7f53 with SMTP id sa31-20020a1709076d1f00b006fee53b7f53mr4659077ejc.375.1654181783946; Thu, 02 Jun 2022 07:56:23 -0700 (PDT) Received: from orion.localdomain ([93.99.228.15]) by smtp.gmail.com with ESMTPSA id wj17-20020a170907051100b006fed9a0eb17sm1800254ejb.187.2022.06.02.07.56.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Jun 2022 07:56:23 -0700 (PDT) Received: by orion.localdomain (Postfix, from userid 1003) id 2879BA0884; Thu, 2 Jun 2022 16:56:57 +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 v2 0/2] Refactor of vma_merge and new merge call Date: Thu, 2 Jun 2022 16:56:40 +0200 Message-Id: <20220602145642.16948-1-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. This is third version, I added a mremap expand merge test, added a comment and new variables to the merge call and based the series on a newer kernel version. 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