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b=00G8LLBDByge+9fnmNBx+Qqz6ilOPRNsD2R1H2Nw2RoFQrUsPLn/raG2j+v1saPrT XlcZyHn2PRx8OM/hmJUQQc6nw+jeIbvu2OLyzWB+aOI7ZSiQxCLllQNg1+sXVUECmB bVlgkTdjvyDwBp4xaD58YxCUQK2AnPopZhINDpDw= Date: Sat, 14 Mar 2026 17:23:21 -0700 From: Andrew Morton To: SeongJae Park Cc: Usama Arif , npache@redhat.com, david@kernel.org, ziy@nvidia.com, willy@infradead.org, linux-mm@kvack.org, matthew.brost@intel.com, joshua.hahnjy@gmail.com, hannes@cmpxchg.org, rakie.kim@sk.com, byungchul@sk.com, gourry@gourry.net, ying.huang@linux.alibaba.com, apopple@nvidia.com, linux-kernel@vger.kernel.org, kernel-team@meta.com, richard.weiyang@gmail.com, stable@vger.kernel.org Subject: Re: [PATCH v3] mm: migrate: requeue destination folio on deferred split queue Message-Id: <20260314172321.3ca062bb70e51fefa633a6fe@linux-foundation.org> In-Reply-To: <20260315000555.76876-1-sj@kernel.org> References: <20260314154042.327ba957b1a8c10f64ae0169@linux-foundation.org> <20260315000555.76876-1-sj@kernel.org> 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-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 161D740006 X-Stat-Signature: 5ia8tu5nsyrrhwrjwsjhxqgsc3dfpi9t X-Rspam-User: X-HE-Tag: 1773534204-891508 X-HE-Meta: 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 eVQeUKpP AUNm8L3IkXTuQJd82ZTZjan72E7CVWTGARESi2gyumkiJVGphQhE7RbYx/w/9aRN3ZSdZN3cAaPOx0yRn0kky6pRLdAtYSdR8VbsBcC1sZErbH3iSDoCr92+MiyT/xJWnwwm97bOKMD9Cw7PPLMIUr6tgYukbHfMQEWZwwtLtV6I6dviIwS8ztsJ/f1cRKdlwT2+/2hfwNC/uW9Abrkzyt92RoKBEGcWJaJ8ctIO+qFqRjt3zNe3CFdPrnrVkTgis0f2awDnlfohXktXMc2JrYw1LZIn5Iz8nL9Q374zavsLl7HKDeR/r9/n4hiAYUFjLl3WccZKJycM3ho7F3H26pwaWvw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sat, 14 Mar 2026 17:05:54 -0700 SeongJae Park wrote: > Because THPs are > removed from the deferred_list, THP shinker cannot split the underutilized THPs > in time. As a result, users will show less free memory than before. That'll do, thanks ;) Pasted, added cc:stable. It's been there since 6.12 so I don't see a need to rush this in, so I won't move this into mm-hotfixes - it'll go into mainline for 7.1-rc1 after which -stable should pick it up.