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b=EdRhmhnNGveD80x3N/aymifmjnRSyksCcgJfwSWgvwFWpvzJFXMOHlmMv9eTs/ony X1SWWIWJ7MGNz0WtUqoLkPP965XlBkvf8qMptQV7eyIXYCzgyYnLxMjdLLmXxsRZ0c AZk7xhMEJwbTZR+s5JSjTJhbR9vgIIB871rwuCnE= Date: Thu, 6 Aug 2026 15:41:13 -0700 From: Andrew Morton To: Hao Jia Cc: tj@kernel.org, hannes@cmpxchg.org, shakeel.butt@linux.dev, mhocko@kernel.org, yosry@kernel.org, mkoutny@suse.com, nphamcs@gmail.com, chengming.zhou@linux.dev, muchun.song@linux.dev, roman.gushchin@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Hao Jia Subject: Re: [PATCH v4 0/2] mm/zswap: Fixes and improves the zswap shrink Message-Id: <20260806154113.fd52c4c6207c6945dc77cf79@linux-foundation.org> In-Reply-To: <20260806070943.95542-1-jiahao.kernel@gmail.com> References: <20260806070943.95542-1-jiahao.kernel@gmail.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: oda81pjcmqyjzt7kwza3gsnp6i9j338m X-Rspamd-Queue-Id: 00AA514000E X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1786056075-395272 X-HE-Meta: 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 uzZ1eAYh 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, 6 Aug 2026 15:09:41 +0800 Hao Jia wrote: > From: Hao Jia > > This series fixes and improves the zswap global shrinker (shrink_worker()): > Patch 1: Fix missing global shrinker when memory cgroup is disabled. > Patch 2: Extend shrink_memcg() to support batch writeback and thereby improving > the writeback efficiency in the shrink_worker() and zswap_store() paths. Thanks. Why is a -stable backport proposed for [1/2]? Its changelog should describe the effect of the bug upon our users so that others can understand why this was requested. AI review suggests there may be an issue in [1/2]. Please check? https://sashiko.dev/#/patchset/20260806070943.95542-1-jiahao.kernel@gmail.com