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Wed, 31 Jul 2024 20:00:33 -0700 (PDT) Received: from google.com ([2401:fa00:8f:203:153:1133:6aa8:dcc7]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fed7f67528sm127081175ad.227.2024.07.31.20.00.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 Jul 2024 20:00:33 -0700 (PDT) Date: Thu, 1 Aug 2024 12:00:27 +0900 From: Sergey Senozhatsky To: Nhat Pham Cc: Barry Song <21cnbao@gmail.com>, Christoph Hellwig , Matthew Wilcox , akpm@linux-foundation.org, linux-mm@kvack.org, ying.huang@intel.com, baolin.wang@linux.alibaba.com, chrisl@kernel.org, david@redhat.com, hannes@cmpxchg.org, hughd@google.com, kaleshsingh@google.com, kasong@tencent.com, linux-kernel@vger.kernel.org, mhocko@suse.com, minchan@kernel.org, ryan.roberts@arm.com, senozhatsky@chromium.org, shakeel.butt@linux.dev, shy828301@gmail.com, surenb@google.com, v-songbaohua@oppo.com, xiang@kernel.org, yosryahmed@google.com Subject: Re: [PATCH v5 4/4] mm: Introduce per-thpsize swapin control policy Message-ID: <20240801030027.GE16599@google.com> References: <20240726094618.401593-1-21cnbao@gmail.com> <20240726094618.401593-5-21cnbao@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam03 X-Rspam-User: X-Rspamd-Queue-Id: 68E0380013 X-Stat-Signature: ar4q9tmhe9n58jx56z91hywnkhja6gou X-HE-Tag: 1722481235-328785 X-HE-Meta: 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 4qxK6dRp pQ+Hwzv0pZI4Vjj2QWBo3mL7NnKoW4yPhu0Z7ig+NzEJ0/9tC8/4eZHoe0bKrxnbw4HZM4RqvhEXTzjy6umDqXhcZjXDChJmjoo23ERoGW08VoHagbxbw2yzZNxvZUK44bkZ0HWkQofhzEOQnaswy5Y4FmgT/SPl60l8n3EPYw6BKkqjYScz99IB5q01gM1c+HGl4VnE+Am79c03SIQWHsoaaJX1aQxwdAoN30PbFBn4cxWpsZGA/VJFOh9fkhUbUUoD47WyMVzgEK/ap4hR+hdYDGbE47wVpsOuS+F6HPSv4o2/blapbSYJdwLAm77JRa38fDoREBG5z7No= X-Bogosity: Ham, tests=bogofilter, spamicity=0.005736, 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 (24/07/31 11:35), Nhat Pham wrote: > > I'm not proposing that we kill zram right away. > Just for the record, zram is a generic block device and has use-cases outside of swap. Just mkfs on /dev/zram0, mount it and do whatever. The "kill zram" thing is not going to fly.