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authorThomas Gleixner <tglx@linutronix.de>2009-11-07 09:16:32 +0300
committerDavid S. Miller <davem@davemloft.net>2009-11-07 09:16:32 +0300
commit4df286e52917c95c415400367cfd523dfbb0f93a (patch)
tree70a3339e7e1d615331e5ab0a845cb24303209f68 /arch/sparc
parentddaf1b27edf72372242d752730d526b79312a44e (diff)
downloadlinux-4df286e52917c95c415400367cfd523dfbb0f93a.tar.xz
sparc: Make atomic locks raw
SPIN_LOCK_UNLOCKED is deprecated and the locks which protect the atomic operations have no dependency on other locks and the code is well tested so the conversion to a raw lock is safe. Make the lock array static while at it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/lib/atomic32.c36
1 files changed, 18 insertions, 18 deletions
diff --git a/arch/sparc/lib/atomic32.c b/arch/sparc/lib/atomic32.c
index cbddeb38ffda..080b7c26e0fd 100644
--- a/arch/sparc/lib/atomic32.c
+++ b/arch/sparc/lib/atomic32.c
@@ -15,8 +15,8 @@
#define ATOMIC_HASH_SIZE 4
#define ATOMIC_HASH(a) (&__atomic_hash[(((unsigned long)a)>>8) & (ATOMIC_HASH_SIZE-1)])
-spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] = {
- [0 ... (ATOMIC_HASH_SIZE-1)] = SPIN_LOCK_UNLOCKED
+static raw_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] = {
+ [0 ... (ATOMIC_HASH_SIZE-1)] = __RAW_SPIN_LOCK_UNLOCKED
};
#else /* SMP */
@@ -31,11 +31,11 @@ int __atomic_add_return(int i, atomic_t *v)
{
int ret;
unsigned long flags;
- spin_lock_irqsave(ATOMIC_HASH(v), flags);
+ __raw_spin_lock_irqsave(ATOMIC_HASH(v), flags);
ret = (v->counter += i);
- spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
+ __raw_spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
return ret;
}
EXPORT_SYMBOL(__atomic_add_return);
@@ -45,12 +45,12 @@ int atomic_cmpxchg(atomic_t *v, int old, int new)
int ret;
unsigned long flags;
- spin_lock_irqsave(ATOMIC_HASH(v), flags);
+ __raw_spin_lock_irqsave(ATOMIC_HASH(v), flags);
ret = v->counter;
if (likely(ret == old))
v->counter = new;
- spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
+ __raw_spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
return ret;
}
EXPORT_SYMBOL(atomic_cmpxchg);
@@ -60,11 +60,11 @@ int atomic_add_unless(atomic_t *v, int a, int u)
int ret;
unsigned long flags;
- spin_lock_irqsave(ATOMIC_HASH(v), flags);
+ __raw_spin_lock_irqsave(ATOMIC_HASH(v), flags);
ret = v->counter;
if (ret != u)
v->counter += a;
- spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
+ __raw_spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
return ret != u;
}
EXPORT_SYMBOL(atomic_add_unless);
@@ -74,9 +74,9 @@ void atomic_set(atomic_t *v, int i)
{
unsigned long flags;
- spin_lock_irqsave(ATOMIC_HASH(v), flags);
+ __raw_spin_lock_irqsave(ATOMIC_HASH(v), flags);
v->counter = i;
- spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
+ __raw_spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
}
EXPORT_SYMBOL(atomic_set);
@@ -84,10 +84,10 @@ unsigned long ___set_bit(unsigned long *addr, unsigned long mask)
{
unsigned long old, flags;
- spin_lock_irqsave(ATOMIC_HASH(addr), flags);
+ __raw_spin_lock_irqsave(ATOMIC_HASH(addr), flags);
old = *addr;
*addr = old | mask;
- spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
+ __raw_spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
return old & mask;
}
@@ -97,10 +97,10 @@ unsigned long ___clear_bit(unsigned long *addr, unsigned long mask)
{
unsigned long old, flags;
- spin_lock_irqsave(ATOMIC_HASH(addr), flags);
+ __raw_spin_lock_irqsave(ATOMIC_HASH(addr), flags);
old = *addr;
*addr = old & ~mask;
- spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
+ __raw_spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
return old & mask;
}
@@ -110,10 +110,10 @@ unsigned long ___change_bit(unsigned long *addr, unsigned long mask)
{
unsigned long old, flags;
- spin_lock_irqsave(ATOMIC_HASH(addr), flags);
+ __raw_spin_lock_irqsave(ATOMIC_HASH(addr), flags);
old = *addr;
*addr = old ^ mask;
- spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
+ __raw_spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
return old & mask;
}
@@ -124,10 +124,10 @@ unsigned long __cmpxchg_u32(volatile u32 *ptr, u32 old, u32 new)
unsigned long flags;
u32 prev;
- spin_lock_irqsave(ATOMIC_HASH(ptr), flags);
+ __raw_spin_lock_irqsave(ATOMIC_HASH(ptr), flags);
if ((prev = *ptr) == old)
*ptr = new;
- spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags);
+ __raw_spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags);
return (unsigned long)prev;
}