image/svg+xml
->qsmask &= ~->grpmask
Root
rcu_report_rnp()
Leaf
->qsmask &= ~->grpmask
Leaf
Leaf
Leaf
->qsmask &= ~->grpmask
note_gp_changes()
rdp->gp_seq
__note_gp_changes()
Leaf
rcu_note_context_switch()
rcu_sched_clock_irq()
rcu_core()
rcu_check_quiescent_state()
rcu__report_qs_rdp())
RCU
read-side
critical section
RCU
read-side
critical section
RCU
read-side
critical section
RCU
read-side
critical section
Wake up
grace-period
kernel thread
rcu_report_qs_rsp()