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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1783100919; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=GGBqB1i2lcxh2kKfWJFTM0BG47cF97dz2YCl8fcmHhA=; b=KSn3XOkjMucwzDecl7TvcRBT8YSow4vMTBeBCySRuzCzQCzp7tHuTZ2QJjMFv/gmxapQGH spQwWO0+HKj7dS4T0tBQ2NGkVWSRLunZVotR+HvkHWzJzoEldfJh5fi6/38CgsrV9bx1yP vlRDLRa8Zxke8Y/10hD7Eyl/ChPjZEQ= From: Usama Arif To: Usama Arif Cc: Andrew Morton , david@kernel.org, chrisl@kernel.org, kasong@tencent.com, ljs@kernel.org, ziy@nvidia.com, linux-mm@kvack.org, ying.huang@linux.alibaba.com, Baoquan He , willy@infradead.org, youngjun.park@lge.com, hannes@cmpxchg.org, riel@surriel.com, shakeel.butt@linux.dev, alex@ghiti.fr, kas@kernel.org, baohua@kernel.org, dev.jain@arm.com, baolin.wang@linux.alibaba.com, npache@redhat.com, "Liam R . Howlett" , ryan.roberts@arm.com, Vlastimil Babka , lance.yang@linux.dev, linux-kernel@vger.kernel.org, nphamcs@gmail.com, shikemeng@huaweicloud.com, kernel-team@meta.com Subject: Re: [PATCH 0/6] mm: preparatory patches for PMD level swap entries Date: Fri, 3 Jul 2026 10:48:31 -0700 Message-ID: <20260703174832.55655-1-usama.arif@linux.dev> In-Reply-To: <20260630164143.1595669-1-usama.arif@linux.dev> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam11 X-Rspam-User: X-Stat-Signature: yrqz36714q9h166ft5yi4tugsryi3an3 X-Rspamd-Queue-Id: 2C00914000A X-HE-Tag: 1783100920-887659 X-HE-Meta: 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 phnIUs2X IgIF3FwtmxlM8ONFeenmWASzj/6IgVRs25lJXewJ2w5vgE0ZLNPfSMhFmG7i7+GEGBecXRDCUZ7JBueAvb5YSNYasGHhL5W7hG1fDJ3u2oHPtVCRbN3GhfZbXGHu2k4GR6lquIKI6TebNQ4+aXoRn7RL+TppdPs4tYkSN2T13skbgXjPKYf6vNCzh67BamDNkgyjRW8pJKVKf0r+bjBQDOSqagJSkyR8H22T9 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, 30 Jun 2026 09:34:37 -0700 Usama Arif wrote: > This is the preparatory part of the PMD page table swapin work. The > full PMD swap entry series has been split into two parts: > > 1. this preparatory series, which contains the first 6 patches. Zi [1] > and Lance [2] suggested to separate this out from the core series. > 2. the PMD swap entry core series, which depends on this one. I will > send this once the preparatory series is merged in mm-new as v3 > as the combined is currently at v2 [1]. > I have not marked this prep series as v3, as its not really adding > support for PMD swap entries. > > This series does not introduce PMD swap entries and does not install any > new page-table entry type. It only cleans up existing PMD softleaf > helpers and call sites so the follow-up PMD swap entry series can be > smaller and easier to review. > Hi Andrew, The series only needs 2 small changes: Removing a comment: https://lore.kernel.org/all/157838aa-1518-46b5-8734-feab2c42ee2a@kernel.org/ and s/CONFIG_ARCH_SUPPORTS_PMD/CONFIG_ARCH_HAS_PMD_SOFTLEAVES/ in the last patch: https://lore.kernel.org/all/e37df165-8de0-4924-ba19-0d43a6b7d36e@kernel.org/ I am always torn between sending a fixlet on the existing series or a new revision. Just wanted to check what is easiest for you and your preference in situations like above? Thanks! Usama