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Thu, 13 Nov 2025 16:27:05 +0800 X-QQ-mid: xmsmtpt1763022425tw34gw48d Message-ID: X-QQ-XMAILINFO: ON4JYNczNu10K3dFLsf5HglgDmwpEuP5H8XoKG04IMwTQ8yCPpA2mifQWPpYrz o5qgq+eBwXEoSWwWT+yqgrKyYduVhCxX026WfrfLSzist5VcexfZAmplvA/rMWzw/ed4v86o0FVt BIskcAFTKuWZTnvpQTmvPrwsKtcKXSyZOvUcyujZ4CBbQHl0qLfLL2KpA4mx0ILjg7W0b13BZldy aE+7lX98uC7ukkgCGpMMmZoIXxsby/NNoqbskgPcYqHtzUEvDjRMN9LEZL13HZ99a828C+CJL6jw CuR/wjGznU1hlnVpQWA8Z81jHH8VKR6hNNHzQEQi0kghVnIHaTRtpt2tyZZTfJFtM65F8TNT9WqZ tEeq+3G5YjMfY+Tz068PsOh2eCSeUXue2WN6aGB9LpUTktA+odXphwQW47DCOGGT+QsUdklX/n7c F11pIEvY9ZSgPJFR1pAfMzn2YokID++F6k3mowS9xH75TVuvES7Oi+WMlM/ArB4GUHpPhRe21qUb 8IVEtcYTBbXGmgsVGoIF4MTbyVvWI3bwnHv/463GOPwqnL+fFo7c6JM5XFg01Kp2iBoGjqm28zot hpxPH6s8hu4IADxAXiGS4Z8I5yujdmOxoBXJV6LEc0t5WNI7N4gYGc9FW+WKs91X3tdhzRxt3ILN HqvG/AP+OSAK7qdeMA7g8p6TdePYbaB26Kdzu739HK3uzaSWG6L2SzEHINyX9+trG8IvQoeuTITx MrypEPn35jsS+jLUhE9StSv2l571etihy/onHzQAv7Uz7S9ScMITFezsmcGlpwmyfXlOQDxC3O7L nDpOW/FV1bqNHNXmItvHR/iyVN8U68lFFdiYxjlwYfpd23LwkKFuVsbPjrN7w7JLGnL84FEGHywd 5TDcBxXrQDgJcxjcyYCFOtRlVouNLW6XVdA73uQem/6d13C9/WJ0i5CPQ95MEsOlX3/nHMpc8Df6 VMYAoz2/aKv3rkvJnMk0Kw5AJ7uR5qsvM3i/GeAhIVRZwIIBve1zpmHSbkKt3Vg+xQtUx2AcaPUA oo8F8Bl/Znq5G0v3oS0xls21QS7OufUdGDN207iO6p6/UfGuE/K7Tyz9NiXL8SJGpyp+uzbw== X-QQ-XMRINFO: M/715EihBoGSf6IYSX1iLFg= From: Yuwen Chen To: senozhatsky@chromium.org Cc: akpm@linux-foundation.org, axboe@kernel.dk, bgeffon@google.com, licayy@outlook.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, liumartin@google.com, minchan@kernel.org, richardycc@google.com, ywen.chen@foxmail.com Subject: Re: [PATCH v4] zram: Implement multi-page write-back Date: Thu, 13 Nov 2025 16:27:05 +0800 X-OQ-MSGID: <20251113082705.3325765-1-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-Stat-Signature: rkccg7j9k1pfc5ybuqne16xxmhda33uw X-Rspam-User: X-Rspamd-Queue-Id: E2BF8C000E X-Rspamd-Server: rspam01 X-HE-Tag: 1763022431-343084 X-HE-Meta: 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 /nKFdmXO EwqCNAnJWmbDPqhAvl1A1nSbEAGDuNEHWC/v2s5jvdj36HDXRiABn3IKgNTBOXkr3We2yNpzT6wurNONeH8CB6x7ZWnPF4kf5h7LySqF+y/1xrPk8WCgw2qNkhTZfZPgt2skRVJGCCXT9TrELXa0YbMuWokAow2PptjTtQyAp/DZJ3DpY7LxCYw79K9DtIq5IMWpFfSI5lkKvdkMWDFGCnm9e9vAyuBjepugSny/YTDSK7duP86kbXNtTBZF4zz/aVkmm 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 (25/11/12 21:40), Minchan Kim wrote: > My preference is [1], which is very close to how current post-processing > is implemented in zram, w/o complexity that dedicated kthread handling > introduces and so on. > [1] https://lore.kernel.org/linux-mm/45b418277c6ae613783b9ecc714c96313ceb841d.1763013260.git.senozhatsky@chromium.org Yes, I also agree with this. Introducing threads in writeback will increase the complexity.