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percpu-rwsem: kill CONFIG_PERCPU_RWSEM

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Remove CONFIG_PERCPU_RWSEM, the next patch adds the unconditional
user of percpu_rw_semaphore.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
This commit is contained in:
Oleg Nesterov 2015-08-11 17:26:29 +02:00
parent 55cc156505
commit bf3eac84c4
4 changed files with 1 additions and 7 deletions
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1
arch/Kconfig
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@ -87,7 +87,6 @@ config KPROBES_ON_FTRACE
config UPROBES config UPROBES
def_bool n def_bool n
select PERCPU_RWSEM
help help
Uprobes is the user-space counterpart to kprobes: they Uprobes is the user-space counterpart to kprobes: they
enable instrumentation applications (such as 'perf probe') enable instrumentation applications (such as 'perf probe')

1
init/Kconfig
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@ -925,7 +925,6 @@ config NUMA_BALANCING_DEFAULT_ENABLED
menuconfig CGROUPS menuconfig CGROUPS
bool "Control Group support" bool "Control Group support"
select KERNFS select KERNFS
select PERCPU_RWSEM
help help
This option adds support for grouping sets of processes together, for This option adds support for grouping sets of processes together, for
use with process control subsystems such as Cpusets, CFS, memory use with process control subsystems such as Cpusets, CFS, memory

3
kernel/locking/Makefile
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@ -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 ifdef CONFIG_FUNCTION_TRACER
CFLAGS_REMOVE_lockdep.o = $(CC_FLAGS_FTRACE) 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_DEBUG_SPINLOCK) += spinlock_debug.o
obj-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o obj-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem-xadd.o obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem-xadd.o
obj-$(CONFIG_PERCPU_RWSEM) += percpu-rwsem.o
obj-$(CONFIG_QUEUED_RWLOCKS) += qrwlock.o obj-$(CONFIG_QUEUED_RWLOCKS) += qrwlock.o
obj-$(CONFIG_LOCK_TORTURE_TEST) += locktorture.o obj-$(CONFIG_LOCK_TORTURE_TEST) += locktorture.o

3
lib/Kconfig
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@ -53,9 +53,6 @@ config GENERIC_IO
config STMP_DEVICE config STMP_DEVICE
bool bool
config PERCPU_RWSEM
bool
config ARCH_USE_CMPXCHG_LOCKREF config ARCH_USE_CMPXCHG_LOCKREF
bool bool