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context_tracking, rcu: Rename rcu_dynticks_curr_cpu_in_eqs() into rcu_is_watching_curr_cpu()

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The context_tracking.state RCU_DYNTICKS subvariable has been renamed to
RCU_WATCHING, reflect that change in the related helpers.

Note that "watching" is the opposite of "in EQS", so the negation is lifted
out of the helper and into the callsites.

Signed-off-by: Valentin Schneider <vschneid@redhat.com>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
This commit is contained in:
Valentin Schneider
2024-04-16 11:01:23 +02:00
committed by Neeraj Upadhyay
parent b1b91fd1be
commit fda7020713
3 changed files with 14 additions and 10 deletions
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kernel/context_tracking.c
+3 -3
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@@ -212,7 +212,7 @@ void noinstr ct_nmi_exit(void)
* to us!)
*/
WARN_ON_ONCE(ct_nmi_nesting() <= 0);
WARN_ON_ONCE(rcu_dynticks_curr_cpu_in_eqs());
WARN_ON_ONCE(!rcu_is_watching_curr_cpu());
/*
* If the nesting level is not 1, the CPU wasn't RCU-idle, so
@@ -271,7 +271,7 @@ void noinstr ct_nmi_enter(void)
* to be in the outermost NMI handler that interrupted an RCU-idle
* period (observation due to Andy Lutomirski).
*/
if (rcu_dynticks_curr_cpu_in_eqs()) {
if (!rcu_is_watching_curr_cpu()) {
if (!in_nmi())
rcu_task_enter();
@@ -281,7 +281,7 @@ void noinstr ct_nmi_enter(void)
// ... but is watching here.
instrumentation_begin();
// instrumentation for the noinstr rcu_dynticks_curr_cpu_in_eqs()
// instrumentation for the noinstr rcu_is_watching_curr_cpu()
instrument_atomic_read(&ct->state, sizeof(ct->state));
// instrumentation for the noinstr ct_kernel_enter_state()
instrument_atomic_write(&ct->state, sizeof(ct->state));