diff options
Diffstat (limited to 'kernel/arch/x86/kernel/paravirt-spinlocks.c')
| -rw-r--r-- | kernel/arch/x86/kernel/paravirt-spinlocks.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/arch/x86/kernel/paravirt-spinlocks.c b/kernel/arch/x86/kernel/paravirt-spinlocks.c new file mode 100644 index 000000000..bbb6c7316 --- /dev/null +++ b/kernel/arch/x86/kernel/paravirt-spinlocks.c @@ -0,0 +1,20 @@ +/* + * Split spinlock implementation out into its own file, so it can be + * compiled in a FTRACE-compatible way. + */ +#include <linux/spinlock.h> +#include <linux/module.h> +#include <linux/jump_label.h> + +#include <asm/paravirt.h> + +struct pv_lock_ops pv_lock_ops = { +#ifdef CONFIG_SMP + .lock_spinning = __PV_IS_CALLEE_SAVE(paravirt_nop), + .unlock_kick = paravirt_nop, +#endif +}; +EXPORT_SYMBOL(pv_lock_ops); + +struct static_key paravirt_ticketlocks_enabled = STATIC_KEY_INIT_FALSE; +EXPORT_SYMBOL(paravirt_ticketlocks_enabled); |