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[172.10.233.147]) by smtp.gmail.com with ESMTPSA id 00721157ae682-71d6107d1a0sm812637b3.76.2025.08.13.11.58.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Aug 2025 11:58:44 -0700 (PDT) Date: Wed, 13 Aug 2025 11:58:32 -0700 (PDT) From: Hugh Dickins To: Chris Li cc: SeongJae Park , Andrew Morton , Chengming Zhou , David Hildenbrand , Johannes Weiner , Nhat Pham , Yosry Ahmed , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Takero Funaki , Hugh Dickins Subject: Re: [PATCH v2] mm/zswap: store Message-ID: <2f75a76c-bdc1-6ca7-4438-21554831ec56@google.com> References: <20250812170046.56468-1-sj@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Stat-Signature: t68f9aheewsn8br9z964c1fsrsrug6gj X-Rspam-User: X-Rspamd-Queue-Id: 4C9D9100009 X-Rspamd-Server: rspam05 X-HE-Tag: 1755111526-340087 X-HE-Meta: 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 6tmKFtoF 9K4pyyyFczVOtiEQg7B4mFdNi+hoyqaEhrI2JDU5/umUwFpaUh0QR/qrHajYHqDet/inIR1lBgj3o50427GUren+fSdLWSS4H8dtScE3YrWFZnPIflkx+8GIWiYfHXDAvszw9p8ZgrIkV6EisyuG/f43dPbyREvjJyvBcFvpC+PC0WAmuRVZbg7mTOXtzZnA88zSrA5y0RrcsGMTJ5pBi612PCpduZfk/EhN9OnzIDbZ1YyATuB21C4WizLIIrA/iwSXN/ZYafWZ92hPhiH6chnqc93jyTSyWDJhSyjHcPRO8PZzNUCcP76Dg8cuRZNtILYur2J22PmjT6WspfVGSlrPMle/myWoEgacn5oR3bI+lFkBVEbJRjj9rPjPsjswkmCy0c7C4CgyxUo2WLTd8Of4Wa/FcTIjuGY3P 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: List-Subscribe: List-Unsubscribe: On Wed, 13 Aug 2025, Chris Li wrote: > > I know Hugh has some idea to store incompressible pages in the swap > cache as well. Hugh? No, I don't have any idea or plan to store incompressible pages in the swap cache myself. But yes, incompressible pages could well be "stored" in the swap cache. Hugh