linux/arch/x86/kernel/paravirt-spinlocks.c
Ingo Molnar 087052b02f x86: fix default_spin_lock_flags() prototype
these warnings:

  arch/x86/kernel/paravirt-spinlocks.c: In function ‘default_spin_lock_flags’:
  arch/x86/kernel/paravirt-spinlocks.c:12: warning: passing argument 1 of ‘__raw_spin_lock’ from incompatible pointer type
  arch/x86/kernel/paravirt-spinlocks.c: At top level:
  arch/x86/kernel/paravirt-spinlocks.c:11: warning: ‘default_spin_lock_flags’ defined but not used

showed that the prototype of default_spin_lock_flags() was confused about
what type spinlocks have.

the proper type on UP is raw_spinlock_t.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-08 16:08:29 +01:00

38 lines
978 B
C

/*
* 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 <asm/paravirt.h>
static inline void
default_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags)
{
__raw_spin_lock(lock);
}
struct pv_lock_ops pv_lock_ops = {
#ifdef CONFIG_SMP
.spin_is_locked = __ticket_spin_is_locked,
.spin_is_contended = __ticket_spin_is_contended,
.spin_lock = __ticket_spin_lock,
.spin_lock_flags = default_spin_lock_flags,
.spin_trylock = __ticket_spin_trylock,
.spin_unlock = __ticket_spin_unlock,
#endif
};
EXPORT_SYMBOL(pv_lock_ops);
void __init paravirt_use_bytelocks(void)
{
#ifdef CONFIG_SMP
pv_lock_ops.spin_is_locked = __byte_spin_is_locked;
pv_lock_ops.spin_is_contended = __byte_spin_is_contended;
pv_lock_ops.spin_lock = __byte_spin_lock;
pv_lock_ops.spin_trylock = __byte_spin_trylock;
pv_lock_ops.spin_unlock = __byte_spin_unlock;
#endif
}