Re: [PATCH v3 11/15] tracing/fgraph: convert process/thread iterator to for_each_process_thread_rculock
From: Steven Rostedt <rostedt@goodmis.org>
Date: 2026-09-11 12:58:31
Also in:
linux-fsdevel, linux-mm, linux-pm, linux-security-module, lkml, rcu
On Fri, 11 Sep 2026 15:57:56 +0800 Ye Liu [off-list ref] wrote:
From: Ye Liu <liuye@kylinos.cn> Replace the manual rcu_read_lock()/rcu_read_unlock() pair combined with for_each_process_thread() loop in kernel/trace/fgraph.c with for_each_process_thread_rculock(), which scopes the RCU read lock to the loop body via scoped_guard(rcu). No functional change. Signed-off-by: Ye Liu <liuye@kylinos.cn> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: SJ Park <sj@kernel.org> Reviewed-by: Lorenzo Stoakes (ARM) <ljs@kernel.org> Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org> -- Steve