From: "Paul E. McKenney" <paul...@kernel.org> This commit provides a rcu_barrier_cb_is_done() function that returns true if the *rcu_barrier*() callback passed in is done. This will be used when printing grace-period debugging information.
Signed-off-by: "Paul E. McKenney" <paul...@kernel.org> Signed-off-by: Neeraj Upadhyay <neeraj.upadh...@kernel.org> --- kernel/rcu/rcu.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h index 38238e595a61..caaed27e476b 100644 --- a/kernel/rcu/rcu.h +++ b/kernel/rcu/rcu.h @@ -255,6 +255,11 @@ static inline void debug_rcu_head_callback(struct rcu_head *rhp) kmem_dump_obj(rhp); } +static inline bool rcu_barrier_cb_is_done(struct rcu_head *rhp) +{ + return rhp->next == rhp; +} + extern int rcu_cpu_stall_suppress_at_boot; static inline bool rcu_stall_is_suppressed_at_boot(void) -- 2.40.1