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rcu: Eliminate rcu_irq_enter_disabled()

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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>
This commit is contained in:
Paul E. McKenney 2017-10-03 16:51:47 -07:00
commit 844ccdd7dc
5 changed files with 3 additions and 37 deletions
include/linux
tracepoint.h

5
include/linux/tracepoint.h
View file

@ -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) { \