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rcu/nocb: Choose the right rcuog/rcuop kthreads to output 

The show_rcu_nocb_gp_state() function is supposed to dump out the rcuog
kthread and the show_rcu_nocb_state() function is supposed to dump out
the rcuo[ps] kthread.  Currently, both do a mixture, which is not optimal
for debugging, even though it does not affect functionality.

This commit therefore adjusts these two functions to focus on their
respective kthreads.

Signed-off-by: Zqiang <qiang1.zhang@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Zqiang 2022-06-17 22:15:19 +08:00 committed by Paul E. McKenney
parent 568035b01c
commit 5334da2af2
1 changed files with 3 additions and 3 deletions
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6
kernel/rcu/tree_nocb.h
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@ -1452,8 +1452,8 @@ static void show_rcu_nocb_gp_state(struct rcu_data *rdp)
(long)rdp->nocb_gp_seq,
rnp->grplo, rnp->grphi, READ_ONCE(rdp->nocb_gp_loops),
rdp->nocb_gp_kthread ? task_state_to_char(rdp->nocb_gp_kthread) : '.',
rdp->nocb_cb_kthread ? (int)task_cpu(rdp->nocb_gp_kthread) : -1,
show_rcu_should_be_on_cpu(rdp->nocb_cb_kthread));
rdp->nocb_gp_kthread ? (int)task_cpu(rdp->nocb_gp_kthread) : -1,
show_rcu_should_be_on_cpu(rdp->nocb_gp_kthread));
}
/* Dump out nocb kthread state for the specified rcu_data structure. */
@ -1497,7 +1497,7 @@ static void show_rcu_nocb_state(struct rcu_data *rdp)
".B"[!!rcu_cblist_n_cbs(&rdp->nocb_bypass)],
rcu_segcblist_n_cbs(&rdp->cblist),
rdp->nocb_cb_kthread ? task_state_to_char(rdp->nocb_cb_kthread) : '.',
rdp->nocb_cb_kthread ? (int)task_cpu(rdp->nocb_gp_kthread) : -1,
rdp->nocb_cb_kthread ? (int)task_cpu(rdp->nocb_cb_kthread) : -1,
show_rcu_should_be_on_cpu(rdp->nocb_cb_kthread));
/* It is OK for GP kthreads to have GP state. */