Merge with 2.3.19.

1 files changed, 13 insertions, 0 deletions

diff --git a/include/asm-arm/atomic.h b/include/asm-arm/atomic.h
index 431194234..92bcf6f8e 100644
--- a/include/asm-arm/atomic.h
+++ b/include/asm-arm/atomic.h
@@ -81,6 +81,19 @@ static __inline__ int atomic_dec_and_test(volatile atomic_t *v)
 	return result;
 }
 
+extern __inline__ int atomic_add_negative(int i, volatile atomic_t *v)
+{
+	unsigned long flags;
+	int result;
+
+	save_flags_cli(flags);
+	v->counter += i;
+	result = (v->counter < 0);
+	restore_flags(flags);
+
+	return result;
+}
+
 static __inline__ void atomic_clear_mask(unsigned long mask, unsigned long *addr)
 {
 	unsigned long flags;