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Wed, 24 Dec 2025 16:01:37 -0800 (PST) Date: Thu, 25 Dec 2025 08:01:33 +0800 From: Jinchao Wang To: Mathieu Desnoyers Cc: Alexander Viro , Christian Brauner , Jan Kara , Kees Cook , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Thomas Gleixner Subject: Re: [PATCH] exec: do not call sched_mm_cid_after_execve() on exec fail Message-ID: References: <20251218032327.199721-1-wangjinchao600@gmail.com> <4b221d91-84f8-4600-83b6-a2aa16a02c57@efficios.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4b221d91-84f8-4600-83b6-a2aa16a02c57@efficios.com> X-Rspam-User: X-Rspamd-Queue-Id: 24A7DA0009 X-Rspamd-Server: rspam04 X-Stat-Signature: rpytmakuaqig8y13xnf5ypdg8yc5i5n7 X-HE-Tag: 1766620898-400994 X-HE-Meta: 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 K/nGXAbV 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 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 Wed, Dec 24, 2025 at 08:52:16AM -0500, Mathieu Desnoyers wrote: > On 2025-12-24 07:10, Jinchao Wang wrote: > > On Thu, Dec 18, 2025 at 11:23:23AM +0800, Jinchao Wang wrote: > > > > Hi, mathieu > > > > Please review this patch for mm_cid. > > Nack. Your fix lacks context and removes a needed call in the > common case to fix what I understand to be a init task issue. > > See this patch instead which addresses an issue very similar to > yours removing the relevant sched_mm_cid_after_exec() call: > > https://lore.kernel.org/lkml/20251223215113.639686-1-xiyou.wangcong@gmail.com/ Yes, they are same issue and this patch works. Thanks. > > I added Thomas Gleixner in CC. > > Thanks, > > Mathieu > > -- > Mathieu Desnoyers > EfficiOS Inc. > https://www.efficios.com