Re: [PATCH 1/2] locking/Kconfig: Add INLINE_SPINLOCKS & INLINE_RWLOCKS

Both the arm64 and s390 architectures decide to inline all the spinlock
and rwlock functions except the read_trylock() and write_trylock()
functions for arm64. As other architectures are contemplating about
inlining those locking functions as well, it makes sense to make it
easier and less error-prone to do this.

Two new Kconfig options INLINE_SPINLOCKS and INLINE_RWLOCKS and their
ARCH_* counterparts are now added to streamline this process. The s390
and arm64's Kconfig files are modified to use the new Kconfig options.

There is no functional change for s390. For arm64, both read_trylock()
and write_trylock() are now inlined as well.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Waiman Long <longman@redhat.com>
---
 arch/arm64/Kconfig   | 28 ++-------------------------
 arch/s390/Kconfig    | 30 ++---------------------------
 kernel/Kconfig.locks | 45 +++++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 48 insertions(+), 55 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 950a56b71ff0..e440d85dd8f1 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig

@@ -35,32 +35,8 @@ config ARM64
 	select ARCH_HAS_TEARDOWN_DMA_OPS if IOMMU_SUPPORT
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
-	select ARCH_INLINE_READ_LOCK if !PREEMPT
-	select ARCH_INLINE_READ_LOCK_BH if !PREEMPT
-	select ARCH_INLINE_READ_LOCK_IRQ if !PREEMPT
-	select ARCH_INLINE_READ_LOCK_IRQSAVE if !PREEMPT
-	select ARCH_INLINE_READ_UNLOCK if !PREEMPT
-	select ARCH_INLINE_READ_UNLOCK_BH if !PREEMPT
-	select ARCH_INLINE_READ_UNLOCK_IRQ if !PREEMPT
-	select ARCH_INLINE_READ_UNLOCK_IRQRESTORE if !PREEMPT
-	select ARCH_INLINE_WRITE_LOCK if !PREEMPT
-	select ARCH_INLINE_WRITE_LOCK_BH if !PREEMPT
-	select ARCH_INLINE_WRITE_LOCK_IRQ if !PREEMPT
-	select ARCH_INLINE_WRITE_LOCK_IRQSAVE if !PREEMPT
-	select ARCH_INLINE_WRITE_UNLOCK if !PREEMPT
-	select ARCH_INLINE_WRITE_UNLOCK_BH if !PREEMPT
-	select ARCH_INLINE_WRITE_UNLOCK_IRQ if !PREEMPT
-	select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE if !PREEMPT
-	select ARCH_INLINE_SPIN_TRYLOCK if !PREEMPT
-	select ARCH_INLINE_SPIN_TRYLOCK_BH if !PREEMPT
-	select ARCH_INLINE_SPIN_LOCK if !PREEMPT
-	select ARCH_INLINE_SPIN_LOCK_BH if !PREEMPT
-	select ARCH_INLINE_SPIN_LOCK_IRQ if !PREEMPT
-	select ARCH_INLINE_SPIN_LOCK_IRQSAVE if !PREEMPT
-	select ARCH_INLINE_SPIN_UNLOCK if !PREEMPT
-	select ARCH_INLINE_SPIN_UNLOCK_BH if !PREEMPT
-	select ARCH_INLINE_SPIN_UNLOCK_IRQ if !PREEMPT
-	select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPT
+	select ARCH_INLINE_RWLOCKS if !PREEMPT