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Howlett" , ryan.roberts@arm.com, Vlastimil Babka , lance.yang@linux.dev, linux-kernel@vger.kernel.org, nphamcs@gmail.com, shikemeng@huaweicloud.com, yosry@kernel.org, qi.zheng@linux.dev, luizcap@redhat.com, kernel-team@meta.com Subject: Re: [PATCH v7 00/29] mm: PMD-level swap entries for anonymous THPs Date: Mon, 14 Sep 2026 05:46:22 -0700 Message-ID: <20260914124623.331589-1-usama.arif@linux.dev> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260914114320.12988-1-usama.arif@linux.dev> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 8734F20004 X-Stat-Signature: jsdngmm8jwkkitsc366t7nzof5w7a81a X-Rspam-User: X-HE-Tag: 1789389998-290846 X-HE-Meta: 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 RY1B3x7t +FPnIiGiGvxnFTLAqW94NhXhRUFIbg8jUYM+nkD8MYi1EatAHRpac7s/cRy75PGAWaaZINZN9KlPv87PRD8PDiQ7CbmiwQfipM/f8LM/4vQWkA83q7IgGzrA64hFYwLCglTi5OZ2JTAjZsU/GZBtmN2DjxHFFPSkKwVNykIB/VSgtShXbyIbFWd7lMJwO3D5Quo8uMcMaNvSvaLrlLtK9E/vcrckjT1W9ZP/6arjSDeeHx16bMCJLnSndgq70QULApjJb Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 14 Sep 2026 04:41:52 -0700 Usama Arif wrote: > When reclaim swaps out a PMD-mapped anonymous THP today, the PMD is > split into HPAGE_PMD_NR PTE-level swap entries via TTU_SPLIT_HUGE_PMD > before unmap. This series introduces a PMD-level swap entry so the > huge mapping can survive the swap round-trip and do_huge_pmd_swap_page() > can restore the PMD mapping directly on swap-in, without waiting for > khugepaged to collapse the range later. > I somehow messed up sending the v7 series and only 10 patches got sent. I have resent it in [1]. Apologies for this, please direct all reviews to [1]. [1] https://lore.kernel.org/all/20260914122950.3283997-1-usama.arif@linux.dev/