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Tue, 18 Nov 2025 16:21:48 +0800 X-QQ-mid: xmsmtpt1763454108thf7bnbho Message-ID: X-QQ-XMAILINFO: MwSgv9IoJFr1DNKAPmLPPGkCSjO832gac+Nkob40cHLFFVFi6viG110AHX/lJk MR9qQ2zKu7uIFRMc0T2nSW+57D3Xe9ulEwPrRvi2gv5kXyOgECUdJZMP6ZFF4dd4F0l4HiQwiRKe DEjO+5Kq4SRUfaM99XGjI6gBcOhYjnfJ28Alr++Rb/wQPQdcmA0MZXEK4V5CKM7+Rh9TLsLEOi8w CSj3lokmibcIMtWKnYaEkT9pDVj2hACBQJS+XhSoa9qnmhE0tWOoz1IPXyKUlXZgCcnPVRkcMi6B P4f1OgVdTiRqfxUzfjAfmYhWBsyNNjY/k6OTMZUVoLgB7+XKC3f4EqkwAjQdQHQ6Hcj4G/1cmSn/ jXmuM2D8gELGqM+BoRv/RzhM2hQMX3Z9kOuTMsWVBpimU8T9BjAikA+UibiSG3VjZsDkvaVs6qTF l/LBgYw9bnZ+D9LmrEP3kp9Ryv5SZyMvPZiQevfFPCT+Gs1Vlq/Kv0NxdgRUZuZn/+P3ZR5z+DFr m5SJFlyCfLOfov6ubPg0pZwmpU7/s0Mqc/KEg5lEWXtafAw7zCBOLK8fn3LI8yEpc/COCBSA2Gf8 VQJ1hetHYzQodeBFtOdu/TbWi0JZ17Jfh/owuCMAAvl/gGZDlbZtE0nJma+jjBgoxL5OrQ6Uerd2 W7Tp62zENKbTQyhmkbxHB47XkK7dlmLfxmWD90aIa8NkwxpUH3+pCKwxeaHNOCL1HsX6TcBXUxOd Z1fhagpZzP48TMF+8Uk0OuFY2TA7OZAn075dA7PKgnEO9nB5laVJTllbXne5INMGGwiO0EqECSBG T45OrFcPAmuOzP2LSGkXuJrjq6JJyC0Ia0N+LknC3nRjexvrnPxGMTQnIi3b2OYiRdoKqC1PqbX3 XXW6k1K11kHfw5XS0C9YcKZYdC2ihpP5N8FA//xG6HHbX6MlPB6sCp82Q64e5UI4pCSYTH+fboEt GMZJZR36Wy73ZU0FtKn+Li+/PbHZwWnOw5T6PjoZ4WzIz9zEEW8ZwMXiWDP402DsbRP4oITO/ynS 9UtWqZBjwN+45cspLEDMXV/jQM3iEoZy6XjAyNxqrcedUqEsEyAnwSp+X1tpaFHXaB2eVlo1y07i pKFvll X-QQ-XMRINFO: NyFYKkN4Ny6FSmKK/uo/jdU= From: Yuwen Chen To: senozhatsky@chromium.org Cc: akpm@linux-foundation.org, bgeffon@google.com, licayy@outlook.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, minchan@kernel.org, richardycc@google.com, ywen.chen@foxmail.com Subject: Re: [PATCH] zram: Fix the issue that the write - back limits might overflow Date: Tue, 18 Nov 2025 16:21:47 +0800 X-OQ-MSGID: <20251118082147.2809308-1-ywen.chen@foxmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: E80761C000A X-Stat-Signature: 5xz8unaw7h5fuphdnjr6r4meqrqeukhz X-Rspam-User: X-HE-Tag: 1763454113-476065 X-HE-Meta: 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 nRVxle/E 2N2oAgAyMy22NQqBkskpkQWRMaenQ7SmuZJiDU2reL1Zdgd24TwSq65Dc0zVoSQBRXB/bPucwFjrKn3SUjqfP2X7RybexEuVhi1O4GbYJhfdj7BQ7/eVzMqGwqrlHxi4hKuiedxAFKrxloPWTbtxfxA7v7cfVJeZtLAC7kvrIczYPrsjMf5Ju/N0ESLnCHkSd1xsgtH95v1oCxGl/ZQGrd1xrEA== 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 (25/11/18 15:39), Sergey Senozhatsky wrote: > I really wish we could just change wb code to use PAGE_SIZE not 4K > units [1], unfortunately it's probably too late to change that now. > > [1] https://lore.kernel.org/linux-kernel/20251110052741.92031-1-senozhatsky@chromium.org I've taken a look at the patch you submitted before. This is indeed a very frustrating thing. I'm not sure if we can make the change. If we can change it to use PAGE_SIZE, it will reduce a lot of unnecessary logic.