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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
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

1
arch/Kconfig
View file

@ -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')

1
init/Kconfig
View file

@ -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

3
kernel/locking/Makefile
View file

@ -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

3
lib/Kconfig
View file

@ -53,9 +53,6 @@ config GENERIC_IO
config STMP_DEVICE
bool
config PERCPU_RWSEM
bool
config ARCH_USE_CMPXCHG_LOCKREF
bool