percpu-rwsem: kill CONFIG_PERCPU_RWSEM
Remove CONFIG_PERCPU_RWSEM, the next patch adds the unconditional
user of percpu_rw_semaphore.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
diff --git a/arch/Kconfig b/arch/Kconfig
index 8a8ea71..8f36386 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -87,7 +87,6 @@
config UPROBES
def_bool n
- select PERCPU_RWSEM
help
Uprobes is the user-space counterpart to kprobes: they
enable instrumentation applications (such as 'perf probe')
diff --git a/init/Kconfig b/init/Kconfig
index af09b4f..288c012 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -925,7 +925,6 @@
menuconfig CGROUPS
bool "Control Group support"
select KERNFS
- select PERCPU_RWSEM
help
This option adds support for grouping sets of processes together, for
use with process control subsystems such as Cpusets, CFS, memory
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index 7dd5c99..4c6a97e 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -1,5 +1,5 @@
-obj-y += mutex.o semaphore.o rwsem.o
+obj-y += mutex.o semaphore.o rwsem.o percpu-rwsem.o
ifdef CONFIG_FUNCTION_TRACER
CFLAGS_REMOVE_lockdep.o = $(CC_FLAGS_FTRACE)
@@ -25,6 +25,5 @@
obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock_debug.o
obj-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem-xadd.o
-obj-$(CONFIG_PERCPU_RWSEM) += percpu-rwsem.o
obj-$(CONFIG_QUEUED_RWLOCKS) += qrwlock.o
obj-$(CONFIG_LOCK_TORTURE_TEST) += locktorture.o
diff --git a/lib/Kconfig b/lib/Kconfig
index 3a2ef67..f6aa03d 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -53,9 +53,6 @@
config STMP_DEVICE
bool
-config PERCPU_RWSEM
- bool
-
config ARCH_USE_CMPXCHG_LOCKREF
bool