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Wed, 16 Sep 2026 06:34:04 -0700 (PDT) From: Kayra Cizmeci To: peterz@infradead.org, Tim Chen , Chen Yu Cc: brauner@kernel.org, bsegall@google.com, dietmar.eggemann@arm.com, imv4bel@gmail.com, jack@suse.cz, juri.lelli@redhat.com, kees@kernel.org, kprateek.nayak@amd.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mgorman@suse.de, mingo@redhat.com, qyousef@layalina.io, ricardo.neri-calderon@linux.intel.com, rostedt@goodmis.org, srikar@linux.ibm.com, sshegde@linux.ibm.com, vincent.guittot@linaro.org, vineethr@linux.ibm.com, viro@zeniv.linux.org.uk, vschneid@redhat.com, wanglu.priv@gmail.com, yi1.lai@intel.com, zhanxusheng1024@gmail.com, zhanxusheng@xiaomi.com, ziqianlu@bytedance.com Subject: Re: [PATCH 1/4] sched/cache: Keep nr_pref_llc_running in the runnable domain Date: Wed, 16 Sep 2026 16:33:28 +0300 Message-ID: <20260916133328.3422-1-kayracizmeci@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260916123046.GE776954@noisy.programming.kicks-ass.net> References: <20260916123046.GE776954@noisy.programming.kicks-ass.net> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: q7pyhjs69qp3y5hxe6igbkhebtdsxx76 X-Rspamd-Queue-Id: 2CAE020009 X-Rspamd-Server: rspam07 X-HE-Tag: 1789565646-84396 X-HE-Meta: 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 OVHYmIHm 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > Needs a fixes tag. Hi Peter and Tim, The Fixes tag should be something like: Fixes: 714059f79ff0 ("sched/cache: Handle moving single tasks to/from their preferred LLC") This is the commit that adds this: env->src_rq->nr_pref_llc_running == env->src_rq->cfs.h_nr_runnable thing. It causes the issue so, you can use this, Tim. Hope this wasn't a unnecessary message. I wanted to say this since I already found the commit and didn't want you guys to search for it again. Thanks, Kayra :>