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-rw-r--r--include/linux/lockref.h66
1 files changed, 4 insertions, 62 deletions
diff --git a/include/linux/lockref.h b/include/linux/lockref.h
index 0ea026092d1d..4c0af31c8d47 100644
--- a/include/linux/lockref.h
+++ b/include/linux/lockref.h
@@ -21,67 +21,9 @@ struct lockref {
unsigned int count;
};
-/**
- * lockref_get - Increments reference count unconditionally
- * @lockcnt: pointer to lockref structure
- *
- * This operation is only valid if you already hold a reference
- * to the object, so you know the count cannot be zero.
- */
-static inline void lockref_get(struct lockref *lockref)
-{
- spin_lock(&lockref->lock);
- lockref->count++;
- spin_unlock(&lockref->lock);
-}
-
-/**
- * lockref_get_not_zero - Increments count unless the count is 0
- * @lockcnt: pointer to lockref structure
- * Return: 1 if count updated successfully or 0 if count is 0
- */
-static inline int lockref_get_not_zero(struct lockref *lockref)
-{
- int retval = 0;
-
- spin_lock(&lockref->lock);
- if (lockref->count) {
- lockref->count++;
- retval = 1;
- }
- spin_unlock(&lockref->lock);
- return retval;
-}
-
-/**
- * lockref_get_or_lock - Increments count unless the count is 0
- * @lockcnt: pointer to lockref structure
- * Return: 1 if count updated successfully or 0 if count was zero
- * and we got the lock instead.
- */
-static inline int lockref_get_or_lock(struct lockref *lockref)
-{
- spin_lock(&lockref->lock);
- if (!lockref->count)
- return 0;
- lockref->count++;
- spin_unlock(&lockref->lock);
- return 1;
-}
-
-/**
- * lockref_put_or_lock - decrements count unless count <= 1 before decrement
- * @lockcnt: pointer to lockref structure
- * Return: 1 if count updated successfully or 0 if count <= 1 and lock taken
- */
-static inline int lockref_put_or_lock(struct lockref *lockref)
-{
- spin_lock(&lockref->lock);
- if (lockref->count <= 1)
- return 0;
- lockref->count--;
- spin_unlock(&lockref->lock);
- return 1;
-}
+extern void lockref_get(struct lockref *);
+extern int lockref_get_not_zero(struct lockref *);
+extern int lockref_get_or_lock(struct lockref *);
+extern int lockref_put_or_lock(struct lockref *);
#endif /* __LINUX_LOCKREF_H */