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Commit e05720b0 authored by Paul E. McKenney's avatar Paul E. McKenney
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rcu: Move rcu_implicit_dynticks_qs() to ->gp_seq 



This commit makes rcu_implicit_dynticks_qs() use ->gp_seq, with the
exception of tracing, which will be converted later.

Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent a66ae8ae

kernel/rcu/tree.c

+1 −1
Original line number Diff line number Diff line
@@ -1178,7 +1178,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp) 
	ruqp = per_cpu_ptr(&rcu_dynticks.rcu_urgent_qs, rdp->cpu);

	if (time_after(jiffies, rdp->rsp->gp_start + jtsq) &&

	    READ_ONCE(rdp->rcu_qs_ctr_snap) != per_cpu(rcu_dynticks.rcu_qs_ctr, rdp->cpu) &&

	    READ_ONCE(rdp->gpnum) == rnp->gpnum && !rdp->gpwrap) {

	    rcu_seq_current(&rdp->gp_seq) == rnp->gp_seq && !rdp->gpwrap) {

		trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("rqc"));

		rcu_gpnum_ovf(rnp, rdp);

		return 1;