Re: [PATCH v2 1/8] sched: introduce for_each_process_rculock and for_each_thread_rculock
From: Gregory Price <gourry@gourry.net>
Date: 2026-09-07 15:42:27
Also in:
linux-fsdevel, linux-mm, linux-security-module, linux-trace-kernel, lkml, rcu
On Mon, Sep 07, 2026 at 04:13:27PM +0800, Ye Liu wrote:
From: Ye Liu <liuye@kylinos.cn> 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. Signed-off-by: Ye Liu <liuye@kylinos.cn> Acked-by: Michal Hocko <mhocko@suse.com>
Lorenzo already picked up the nits, this is really nice otherwise. Reviewed-by: Gregory Price (Meta) <gourry@gourry.net>