rcu: Eliminate rcu_irq_enter_disabled()

Now that the irq path uses the rcu_nmi_{enter,exit}() algorithm,
rcu_irq_enter() and rcu_irq_exit() may be used from any context.  There is
thus no need for rcu_irq_enter_disabled() and for the checks using it.
This commit therefore eliminates rcu_irq_enter_disabled().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index a26ffbe09e71..c94f466d57ef 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -137,11 +137,8 @@ extern void syscall_unregfunc(void);
                                                                         \
                 if (!(cond))                                            \
                         return;                                         \
-                if (rcucheck) {                                         \
-                        if (WARN_ON_ONCE(rcu_irq_enter_disabled()))     \
-                                return;                                 \
+                if (rcucheck)                                           \
                         rcu_irq_enter_irqson();                         \
-                }                                                       \
                 rcu_read_lock_sched_notrace();                          \
                 it_func_ptr = rcu_dereference_sched((tp)->funcs);       \
                 if (it_func_ptr) {                                      \