From: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> Define a rcu_tasks_trace lock guard for use by the syscall enter/exit tracepoints. Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Michael Jeanson <mjeanson@xxxxxxxxxxxx> Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Alexei Starovoitov <ast@xxxxxxxxxx> Cc: Yonghong Song <yhs@xxxxxx> Cc: Paul E. McKenney <paulmck@xxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Cc: Namhyung Kim <namhyung@xxxxxxxxxx> Cc: Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx> Cc: bpf@xxxxxxxxxxxxxxx Cc: Joel Fernandes <joel@xxxxxxxxxxxxxxxxx> Cc: Jordan Rife <jrife@xxxxxxxxxx> Cc: linux-trace-kernel@xxxxxxxxxxxxxxx Link: https://lore.kernel.org/20241123153031.2884933-4-mathieu.desnoyers@xxxxxxxxxxxx Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx> --- include/linux/rcupdate_trace.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/rcupdate_trace.h b/include/linux/rcupdate_trace.h index eda493200663..e6c44eb428ab 100644 --- a/include/linux/rcupdate_trace.h +++ b/include/linux/rcupdate_trace.h @@ -10,6 +10,7 @@ #include <linux/sched.h> #include <linux/rcupdate.h> +#include <linux/cleanup.h> extern struct lockdep_map rcu_trace_lock_map; @@ -98,4 +99,8 @@ static inline void rcu_read_lock_trace(void) { BUG(); } static inline void rcu_read_unlock_trace(void) { BUG(); } #endif /* #ifdef CONFIG_TASKS_TRACE_RCU */ +DEFINE_LOCK_GUARD_0(rcu_tasks_trace, + rcu_read_lock_trace(), + rcu_read_unlock_trace()) + #endif /* __LINUX_RCUPDATE_TRACE_H */ -- 2.45.2
