From 8a8b836b91aa170a383f2f360b73d3d23160d9d7 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 17 Dec 2006 16:18:47 -0800 Subject: [SPARC]: Make bitops use same spinlocks as atomics. Recent workqueue changes basically make this a formal requirement. Also, move atomic32.o from lib-y to obj-y since it exports symbols to modules. Signed-off-by: David S. Miller --- arch/sparc/lib/atomic32.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) (limited to 'arch/sparc/lib/atomic32.c') diff --git a/arch/sparc/lib/atomic32.c b/arch/sparc/lib/atomic32.c index de84f8534bac..53ddcd9d1e60 100644 --- 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); -- cgit v1.2.3