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>

4 files changed, 1 insertions, 7 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index 8a8ea7110de8..8f3638674e05 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -87,7 +87,6 @@ config KPROBES_ON_FTRACE
 
 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 af09b4fb43d2..288c0122c2a5 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -925,7 +925,6 @@ config NUMA_BALANCING_DEFAULT_ENABLED
 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 7dd5c9918e4c..4c6a97e1a849 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.o
 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 3a2ef67db6c7..f6aa03dc1576 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -53,9 +53,6 @@ config GENERIC_IO
 config STMP_DEVICE
         bool
 
-config PERCPU_RWSEM
-        bool
-
 config ARCH_USE_CMPXCHG_LOCKREF
         bool