rcu: Make RCU IRQ enter/exit functions rely on in_nmi()
The rcu_nmi_enter_common() and rcu_nmi_exit_common() functions take an
"irq" parameter that indicates whether these functions are invoked from
an irq handler (irq==true) or an NMI handler (irq==false). However,
recent changes have applied notrace to a few critical functions such
that rcu_nmi_enter_common() and rcu_nmi_exit_common() many now rely
on in_nmi(). Note that in_nmi() works no differently than before,
but rather that tracing is no prohibited in code regions where in_nmi()
would incorrectly report NMI state.
This commit therefore removes the "irq" parameter and inlines
rcu_nmi_enter_common() and rcu_nmi_exit_common() into rcu_nmi_enter()
and rcu_nmi_exit(), respectively.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
1 file changed
