Messages in this thread Patch in this message | | | From | Frederic Weisbecker <> | Subject | [PATCH 02/21] rcu: Set rcu_idle_enter() as noinstr | Date | Tue, 3 May 2022 12:00:32 +0200 |
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This function enters into RCU idle mode, make sure that illegal uses of RCU are spotted there by objtools.
Reported-by: Peter Zijlstra <peterz@infradead.org> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com> Cc: Uladzislau Rezki <uladzislau.rezki@sony.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Nicolas Saenz Julienne <nsaenz@kernel.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Xiongfeng Wang <wangxiongfeng2@huawei.com> Cc: Yu Liao<liaoyu15@huawei.com> Cc: Phil Auld <pauld@redhat.com> Cc: Paul Gortmaker<paul.gortmaker@windriver.com> Cc: Alex Belits <abelits@marvell.com> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> --- kernel/rcu/tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 5c587e00811c..a5da4b87afde 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -659,7 +659,7 @@ static noinstr void rcu_eqs_enter(bool user) * If you add or remove a call to rcu_idle_enter(), be sure to test with * CONFIG_RCU_EQS_DEBUG=y. */ -void rcu_idle_enter(void) +noinstr void rcu_idle_enter(void) { lockdep_assert_irqs_disabled(); rcu_eqs_enter(false); -- 2.25.1
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