Commit d7b0615c authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

srcu: Update cleanup_srcu_struct() comment 



Now that we have polled SRCU grace periods, a grace period can be
started by start_poll_synchronize_srcu() as well as call_srcu(),
synchronize_srcu(), and synchronize_srcu_expedited().  This commit
therefore calls out this new start_poll_synchronize_srcu() possibility
in the comment on the WARN_ON().

Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent 395e73bd

kernel/rcu/srcutree.c

+4 −1
Original line number Diff line number Diff line
@@ -667,7 +667,10 @@ void cleanup_srcu_struct(struct srcu_struct *ssp) 
		pr_info("%s: Active srcu_struct %p read state: %d gp state: %lu/%lu\n",

			__func__, ssp, rcu_seq_state(READ_ONCE(sup->srcu_gp_seq)),

			rcu_seq_current(&sup->srcu_gp_seq), sup->srcu_gp_seq_needed);

		return; /* Caller forgot to stop doing call_srcu()? */

		return; // Caller forgot to stop doing call_srcu()?

			// Or caller invoked start_poll_synchronize_srcu()

			// and then cleanup_srcu_struct() before that grace

			// period ended?

	}

	kfree(sup->node);

	sup->node = NULL;