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Date: Wed, 29 Aug 2018 15:38:44 -0700 From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> To: linux-kernel@...r.kernel.org Cc: mingo@...nel.org, jiangshanlai@...il.com, dipankar@...ibm.com, akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com, josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com, fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> Subject: [PATCH tip/core/rcu 42/52] rcu: Remove last non-flavor-traversal rsp local variable from tree_plugin.h This commit removes the last non-flavor-traversal rsp local variable from kernel/rcu/tree_plugin.h in favor of &rcu_state. The flavor-traversal locals will be removed with the removal of flavor traversal. Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com> --- kernel/rcu/tree_plugin.h | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index 5423f9e58494..59d66ee26310 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -782,7 +782,6 @@ static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp) */ static void rcu_flavor_check_callbacks(int user) { - struct rcu_state *rsp = &rcu_state; struct task_struct *t = current; if (user || rcu_is_cpu_rrupt_from_idle()) { @@ -806,7 +805,7 @@ static void rcu_flavor_check_callbacks(int user) __this_cpu_read(rcu_data.core_needs_qs) && __this_cpu_read(rcu_data.cpu_no_qs.b.norm) && !t->rcu_read_unlock_special.b.need_qs && - time_after(jiffies, rsp->gp_start + HZ)) + time_after(jiffies, rcu_state.gp_start + HZ)) t->rcu_read_unlock_special.b.need_qs = true; } @@ -1761,12 +1760,11 @@ static void print_cpu_stall_info_begin(void) /* * Print out diagnostic information for the specified stalled CPU. * - * If the specified CPU is aware of the current RCU grace period - * (flavor specified by rsp), then print the number of scheduling - * clock interrupts the CPU has taken during the time that it has - * been aware. Otherwise, print the number of RCU grace periods - * that this CPU is ignorant of, for example, "1" if the CPU was - * aware of the previous grace period. + * If the specified CPU is aware of the current RCU grace period, then + * print the number of scheduling clock interrupts the CPU has taken + * during the time that it has been aware. Otherwise, print the number + * of RCU grace periods that this CPU is ignorant of, for example, "1" + * if the CPU was aware of the previous grace period. * * Also print out idle and (if CONFIG_RCU_FAST_NO_HZ) idle-entry info. */ -- 2.17.1
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