locking: Convert raw_spinlock to arch_spinlock
The raw_spin* namespace was taken by lockdep for the architecture
specific implementations. raw_spin_* would be the ideal name space for
the spinlocks which are not converted to sleeping locks in preempt-rt.
Linus suggested to convert the raw_ to arch_ locks and cleanup the
name space instead of using an artifical name like core_spin,
atomic_spin or whatever
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: linux-arch@vger.kernel.org
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index 4e77853..204b524 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -58,7 +58,7 @@
#if (NR_CPUS < 256)
#define TICKET_SHIFT 8
-static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock)
+static __always_inline void __ticket_spin_lock(arch_spinlock_t *lock)
{
short inc = 0x0100;
@@ -77,7 +77,7 @@
: "memory", "cc");
}
-static __always_inline int __ticket_spin_trylock(raw_spinlock_t *lock)
+static __always_inline int __ticket_spin_trylock(arch_spinlock_t *lock)
{
int tmp, new;
@@ -96,7 +96,7 @@
return tmp;
}
-static __always_inline void __ticket_spin_unlock(raw_spinlock_t *lock)
+static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
{
asm volatile(UNLOCK_LOCK_PREFIX "incb %0"
: "+m" (lock->slock)
@@ -106,7 +106,7 @@
#else
#define TICKET_SHIFT 16
-static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock)
+static __always_inline void __ticket_spin_lock(arch_spinlock_t *lock)
{
int inc = 0x00010000;
int tmp;
@@ -127,7 +127,7 @@
: "memory", "cc");
}
-static __always_inline int __ticket_spin_trylock(raw_spinlock_t *lock)
+static __always_inline int __ticket_spin_trylock(arch_spinlock_t *lock)
{
int tmp;
int new;
@@ -149,7 +149,7 @@
return tmp;
}
-static __always_inline void __ticket_spin_unlock(raw_spinlock_t *lock)
+static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
{
asm volatile(UNLOCK_LOCK_PREFIX "incw %0"
: "+m" (lock->slock)
@@ -158,14 +158,14 @@
}
#endif
-static inline int __ticket_spin_is_locked(raw_spinlock_t *lock)
+static inline int __ticket_spin_is_locked(arch_spinlock_t *lock)
{
int tmp = ACCESS_ONCE(lock->slock);
return !!(((tmp >> TICKET_SHIFT) ^ tmp) & ((1 << TICKET_SHIFT) - 1));
}
-static inline int __ticket_spin_is_contended(raw_spinlock_t *lock)
+static inline int __ticket_spin_is_contended(arch_spinlock_t *lock)
{
int tmp = ACCESS_ONCE(lock->slock);
@@ -174,33 +174,33 @@
#ifndef CONFIG_PARAVIRT_SPINLOCKS
-static inline int __raw_spin_is_locked(raw_spinlock_t *lock)
+static inline int __raw_spin_is_locked(arch_spinlock_t *lock)
{
return __ticket_spin_is_locked(lock);
}
-static inline int __raw_spin_is_contended(raw_spinlock_t *lock)
+static inline int __raw_spin_is_contended(arch_spinlock_t *lock)
{
return __ticket_spin_is_contended(lock);
}
#define __raw_spin_is_contended __raw_spin_is_contended
-static __always_inline void __raw_spin_lock(raw_spinlock_t *lock)
+static __always_inline void __raw_spin_lock(arch_spinlock_t *lock)
{
__ticket_spin_lock(lock);
}
-static __always_inline int __raw_spin_trylock(raw_spinlock_t *lock)
+static __always_inline int __raw_spin_trylock(arch_spinlock_t *lock)
{
return __ticket_spin_trylock(lock);
}
-static __always_inline void __raw_spin_unlock(raw_spinlock_t *lock)
+static __always_inline void __raw_spin_unlock(arch_spinlock_t *lock)
{
__ticket_spin_unlock(lock);
}
-static __always_inline void __raw_spin_lock_flags(raw_spinlock_t *lock,
+static __always_inline void __raw_spin_lock_flags(arch_spinlock_t *lock,
unsigned long flags)
{
__raw_spin_lock(lock);
@@ -208,7 +208,7 @@
#endif /* CONFIG_PARAVIRT_SPINLOCKS */
-static inline void __raw_spin_unlock_wait(raw_spinlock_t *lock)
+static inline void __raw_spin_unlock_wait(arch_spinlock_t *lock)
{
while (__raw_spin_is_locked(lock))
cpu_relax();