127 void refcount_warn_saturate(refcount_t *r, enum refcount_saturation_type t);
134 static inline void refcount_set(refcount_t *r, int n)  in refcount_set()  argument
136 	atomic_set(&r->refs, n);  in refcount_set()
145 static inline unsigned int refcount_read(const refcount_t *r)  in refcount_read()  argument
147 	return atomic_read(&r->refs);  in refcount_read()
150 static inline __must_check bool __refcount_add_not_zero(int i, refcount_t *r, int *oldp)  in __refcount_add_not_zero()  argument
152 	int old = refcount_read(r);  in __refcount_add_not_zero()
157 	} while (!atomic_try_cmpxchg_relaxed(&r->refs, &old, old + i));  in __refcount_add_not_zero()
163 		refcount_warn_saturate(r, REFCOUNT_ADD_NOT_ZERO_OVF);  in __refcount_add_not_zero()
186 static inline __must_check bool refcount_add_not_zero(int i, refcount_t *r)  in refcount_add_not_zero()  argument
188 	return __refcount_add_not_zero(i, r, NULL);  in refcount_add_not_zero()
191 static inline void __refcount_add(int i, refcount_t *r, int *oldp)  in __refcount_add()  argument
193 	int old = atomic_fetch_add_relaxed(i, &r->refs);  in __refcount_add()
199 		refcount_warn_saturate(r, REFCOUNT_ADD_UAF);  in __refcount_add()
201 		refcount_warn_saturate(r, REFCOUNT_ADD_OVF);  in __refcount_add()
220 static inline void refcount_add(int i, refcount_t *r)  in refcount_add()  argument
222 	__refcount_add(i, r, NULL);  in refcount_add()
225 static inline __must_check bool __refcount_inc_not_zero(refcount_t *r, int *oldp)  in __refcount_inc_not_zero()  argument
227 	return __refcount_add_not_zero(1, r, oldp);  in __refcount_inc_not_zero()
243 static inline __must_check bool refcount_inc_not_zero(refcount_t *r)  in refcount_inc_not_zero()  argument
245 	return __refcount_inc_not_zero(r, NULL);  in refcount_inc_not_zero()
248 static inline void __refcount_inc(refcount_t *r, int *oldp)  in __refcount_inc()  argument
250 	__refcount_add(1, r, oldp);  in __refcount_inc()
265 static inline void refcount_inc(refcount_t *r)  in refcount_inc()  argument
267 	__refcount_inc(r, NULL);  in refcount_inc()
270 static inline __must_check bool __refcount_sub_and_test(int i, refcount_t *r, int *oldp)  in __refcount_sub_and_test()  argument
272 	int old = atomic_fetch_sub_release(i, &r->refs);  in __refcount_sub_and_test()
283 		refcount_warn_saturate(r, REFCOUNT_SUB_UAF);  in __refcount_sub_and_test()
308 static inline __must_check bool refcount_sub_and_test(int i, refcount_t *r)  in refcount_sub_and_test()  argument
310 	return __refcount_sub_and_test(i, r, NULL);  in refcount_sub_and_test()
313 static inline __must_check bool __refcount_dec_and_test(refcount_t *r, int *oldp)  in __refcount_dec_and_test()  argument
315 	return __refcount_sub_and_test(1, r, oldp);  in __refcount_dec_and_test()
331 static inline __must_check bool refcount_dec_and_test(refcount_t *r)  in refcount_dec_and_test()  argument
333 	return __refcount_dec_and_test(r, NULL);  in refcount_dec_and_test()
336 static inline void __refcount_dec(refcount_t *r, int *oldp)  in __refcount_dec()  argument
338 	int old = atomic_fetch_sub_release(1, &r->refs);  in __refcount_dec()
344 		refcount_warn_saturate(r, REFCOUNT_DEC_LEAK);  in __refcount_dec()
357 static inline void refcount_dec(refcount_t *r)  in refcount_dec()  argument
359 	__refcount_dec(r, NULL);  in refcount_dec()
362 extern __must_check bool refcount_dec_if_one(refcount_t *r);
363 extern __must_check bool refcount_dec_not_one(refcount_t *r);
364 extern __must_check bool refcount_dec_and_mutex_lock(refcount_t *r, struct mutex *lock);
365 extern __must_check bool refcount_dec_and_lock(refcount_t *r, spinlock_t *lock);
366 extern __must_check bool refcount_dec_and_lock_irqsave(refcount_t *r,