__LINUX_SPINLOCK_H    4 include/linux/rwlock.h #ifndef __LINUX_SPINLOCK_H
__LINUX_SPINLOCK_H    2 include/linux/spinlock.h #ifndef __LINUX_SPINLOCK_H
__LINUX_SPINLOCK_H    4 include/linux/spinlock_api_smp.h #ifndef __LINUX_SPINLOCK_H
__LINUX_SPINLOCK_H    4 include/linux/spinlock_api_up.h #ifndef __LINUX_SPINLOCK_H
__LINUX_SPINLOCK_H    4 include/linux/spinlock_up.h #ifndef __LINUX_SPINLOCK_H