fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / sparc / lib / atomic32.c

diff --git a/arch/sparc/lib/atomic32.c b/arch/sparc/lib/atomic32.c
index de84f85..53ddcd9 100644 (file)
--- a/arch/sparc/lib/atomic32.c
+++ b/arch/sparc/lib/atomic32.c
@@ -76,3 +76,42 @@ void atomic_set(atomic_t *v, int i)
        spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
 }
 EXPORT_SYMBOL(atomic_set);
+
+unsigned long ___set_bit(unsigned long *addr, unsigned long mask)
+{
+       unsigned long old, flags;
+
+       spin_lock_irqsave(ATOMIC_HASH(addr), flags);
+       old = *addr;
+       *addr = old | mask;
+       spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
+
+       return old & mask;
+}
+EXPORT_SYMBOL(___set_bit);
+
+unsigned long ___clear_bit(unsigned long *addr, unsigned long mask)
+{
+       unsigned long old, flags;
+
+       spin_lock_irqsave(ATOMIC_HASH(addr), flags);
+       old = *addr;
+       *addr = old & ~mask;
+       spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
+
+       return old & mask;
+}
+EXPORT_SYMBOL(___clear_bit);
+
+unsigned long ___change_bit(unsigned long *addr, unsigned long mask)
+{
+       unsigned long old, flags;
+
+       spin_lock_irqsave(ATOMIC_HASH(addr), flags);
+       old = *addr;
+       *addr = old ^ mask;
+       spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
+
+       return old & mask;
+}
+EXPORT_SYMBOL(___change_bit);