[PATCH 16/32] softirq: Normalize softirq_pending naming scheme

Frederic Weisbecker
2019-02-12T17:15:26Z

From: Frederic Weisbecker <fweisbec@gmail.com>

Use the subsystem as the prefix to name the __softirq_data accessors.
They are going to be extended and want a more greppable and standard
naming sheme.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Pavan Kondeti <pkondeti@codeaurora.org>
Cc: Paul E . McKenney <paulmck@linux.vnet.ibm.com>
Cc: David S . Miller <davem@davemloft.net>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
---
arch/s390/include/asm/hardirq.h | 4 ++--
include/linux/interrupt.h | 24 ++++++++++++------------
kernel/softirq.c | 4 ++--
3 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h
index e26325fe287d..3103680487cf 100644
--- a/arch/s390/include/asm/hardirq.h
+++ b/arch/s390/include/asm/hardirq.h
@@ -14,8 +14,8 @@
#include <asm/lowcore.h>

#define local_softirq_pending() (S390_lowcore.softirq_data)
-#define set_softirq_pending(x) (S390_lowcore.softirq_data = (x))
-#define or_softirq_pending(x) (S390_lowcore.softirq_data |= (x))
+#define softirq_pending_set(x) (S390_lowcore.softirq_data = (x))
+#define softirq_pending_or(x) (S390_lowcore.softirq_data |= (x))

#define __ARCH_IRQ_STAT
#define __ARCH_HAS_DO_SOFTIRQ
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index a32bdd9bb103..a5dec926531b 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -447,18 +447,6 @@ extern bool force_irqthreads;
#define force_irqthreads (0)
#endif

-#ifndef local_softirq_pending
-
-#ifndef local_softirq_data_ref
-#define local_softirq_data_ref irq_stat.__softirq_data
-#endif
-
-#define local_softirq_pending() (__this_cpu_read(local_softirq_data_ref))
-#define set_softirq_pending(x) (__this_cpu_write(local_softirq_data_ref, (x)))
-#define or_softirq_pending(x) (__this_cpu_or(local_softirq_data_ref, (x)))
-
-#endif /* local_softirq_pending */
-
/* Some architectures might implement lazy enabling/disabling of
* interrupts. In some cases, such as stop_machine, we might want
* to ensure that after a local_irq_disable(), interrupts have
@@ -485,6 +473,18 @@ enum

#define SOFTIRQ_STOP_IDLE_MASK (~(1 << RCU_SOFTIRQ))

+#ifndef local_softirq_pending
+
+#ifndef local_softirq_data_ref
+#define local_softirq_data_ref irq_stat.__softirq_data
+#endif
+
+#define local_softirq_pending() (__this_cpu_read(local_softirq_data_ref))
+#define softirq_pending_set(x) (__this_cpu_write(local_softirq_data_ref, (x)))
+#define softirq_pending_or(x) (__this_cpu_or(local_softirq_data_ref, (x)))
+
+#endif /* local_softirq_pending */
+
/* map softirq index to softirq name. update 'softirq_to_name' in
* kernel/softirq.c when adding a new softirq.
*/
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 2dcaef813acb..2137c54baf98 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -268,7 +268,7 @@ asmlinkage __visible void __softirq_entry __do_softirq(void)

restart:
/* Reset the pending bitmask before enabling irqs */
- set_softirq_pending(0);
+ softirq_pending_set(0);

local_irq_enable();

@@ -449,7 +449,7 @@ void raise_softirq(unsigned int nr)
void __raise_softirq_irqoff(unsigned int nr)
{
trace_softirq_raise(nr);
- or_softirq_pending(1UL << nr);
+ softirq_pending_or(1UL << nr);
}

void open_softirq(int nr, void (*action)(struct softirq_action *))
--
2.17.1