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b=OUQkhQ1kaTnohHzsTD/U1pPnsHjT6rvQ3f/w6+onI/QqztgFCl862h/l1jvdiRwGO HIwWitHkFqgczyVPMD14Z+QtwsTHkhMqqUbxZTmikC1VuKKNoy3nLeJiy+uXwLQwAa 3DyDfdWZJ9XyTZcRuPQWBYlVsHaY4C1EaxMfbiU/HCmWOu/ESFkhPpzuO5oj4jRwBa igDRSTQq9ByM7IJeQb/Z6uV/dua/ndO2LtrY3DLY6qLqPKTWA3IWuaxix+chZH6P/j 2xfJyD0IgfjTwSV8NwnwlgyvrVcA5eYt6cDfWsmzbOKNh51XjwM91R7pkpZu9pwQXM er8pZGGr3aTXg== From: SJ Park To: Ye Liu Cc: SJ Park , Oleg Nesterov , "Peter Zijlstra (Intel)" , Marco Elver , Ye Liu , Tejun Heo , Christian Brauner , Bart Van Assche , Yi Tao , paulmck@kernel.org, mingo@redhat.com, rostedt@goodmis.org, jpoimboe@kernel.org, mic@digikod.net, tglx@kernel.org, akpm@linux-foundation.org, david@kernel.org, linmiaohe@huawei.com, nao.horiguchi@gmail.com, rafael@kernel.org, gnoack3000@gmail.com, ljs@kernel.org, rientjes@google.com, shakeel.butt@linux.dev, xu.xin16@zte.com.cn, chengming.zhou@linux.dev, will@kernel.org, boqun@kernel.org, frederic@kernel.org, neeraj.upadhyay@kernel.org, joelagnelf@nvidia.com, josh@joshtriplett.org, urezki@gmail.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, tony.luck@intel.com, reinette.chatre@intel.com, x86@kernel.org, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, pavel@kernel.org, lance.yang@linux.dev, mhiramat@kernel.org, pmladek@suse.com, longman@redhat.com, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, qiang.zhang@linux.dev, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, kprateek.nayak@amd.com, mark.rutland@arm.com, Dave.Martin@arm.com, james.morse@arm.com, babu.moger@amd.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, rcu@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-security-module@vger.kernel.org Subject: Re: [PATCH v2 1/8] sched: introduce for_each_process_rculock and for_each_thread_rculock Date: Mon, 7 Sep 2026 14:20:53 -0700 Message-ID: <20260907212054.88063-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260907081334.1152889-2-ye.liu@linux.dev> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: phkx118x3q5xyu93hd4ngrnr15jndgas X-Rspamd-Queue-Id: 7CF0E40006 X-Rspamd-Server: rspam02 X-Rspam-User: X-HE-Tag: 1788816065-944678 X-HE-Meta: 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 ERSx9CQr bnctQHm+TOSSD0Z9frQg+gmIDUx+DfwAMaDTNKh2J6P5EtKpZ0fc+iFIV1wwPq3GKDe69Zfm1SmDiP1nRsye2TkTV/nzlCU0f64Grwob4XYF+gAkBLwqsXsp8wnP+d7XmJrqmsHrF/41VnzbKim802JUTK+BKkvLq5nAyEOjFhZWjw1PkJRpvjjqG3Qgj/4lwE8OvVZeJ2U0njUHxb7k5jbHxVWuZq2lBgF3R0n/T0bg87AiHtOpSOZXFYVrzyyPztI8ZxCZMeCQ3vE977pvAye8axBwMajMu4nN5fuM9O2cwOCTyvAn/pNO1q61MxmXbrzy73hXAJhvgsGgYTKGCTXigvnmtNrt7OD0Wur5HLHrauxZ78OAeob1CFxImhlY1tRtAEBqgg9m7bCsHBuRJPdLaExQZkZZIAGhU Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 7 Sep 2026 16:13:27 +0800 Ye Liu wrote: > From: Ye Liu > > Introduce for_each_process_rculock(), for_each_thread_rculock() and > for_each_process_thread_rculock() macros that acquire the RCU read > lock before the iteration starts and release it when the loop is left, > so that the RCU read-side critical section is scoped to the loop body > instead of an externally managed rcu_read_lock()/rcu_read_unlock() > pair. Looks good to me. > > Signed-off-by: Ye Liu > Acked-by: Michal Hocko Assuming Lorenzo's indentation change requests are accepted, Reviewed-by: SJ Park Thanks, SJ [...]