Messages in this thread Patch in this message | | | From | "Joel Fernandes (Google)" <> | Subject | [PATCH RFC 3/8] rcu: Add back the cpuend tracepoint | Date | Sun, 13 May 2018 20:15:36 -0700 |
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Commit be4b8beed87d ("rcu: Move RCU's grace-period-change code to ->gp_seq") removed the cpuend grace period trace point. This patch adds it back.
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> --- kernel/rcu/tree.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 9ad931bff409..29ccc60bdbfc 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -1774,10 +1774,12 @@ static bool __note_gp_changes(struct rcu_state *rsp, struct rcu_node *rnp, /* Handle the ends of any preceding grace periods first. */ if (rcu_seq_completed_gp(rdp->gp_seq, rnp->gp_seq) || - unlikely(READ_ONCE(rdp->gpwrap))) + unlikely(READ_ONCE(rdp->gpwrap))) { ret = rcu_advance_cbs(rsp, rnp, rdp); /* Advance callbacks. */ - else + trace_rcu_grace_period(rsp->name, rdp->gp_seq, TPS("cpuend")); + } else { ret = rcu_accelerate_cbs(rsp, rnp, rdp); /* Recent callbacks. */ + } /* Now handle the beginnings of any new-to-this-CPU grace periods. */ if (rcu_seq_new_gp(rdp->gp_seq, rnp->gp_seq) || -- 2.17.0.441.gb46fe60e1d-goog
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