13 	struct nocow_lock_bucket *l = bucket_nocow_lock(t, dev_bucket);  in bch2_bucket_nocow_is_locked()  local
16 	for (i = 0; i < ARRAY_SIZE(l->b); i++)  in bch2_bucket_nocow_is_locked()
17 		if (l->b[i] == dev_bucket && atomic_read(&l->l[i]))  in bch2_bucket_nocow_is_locked()
22 #define sign(v)		(v < 0 ? -1 : v > 0 ? 1 : 0)
27 	struct nocow_lock_bucket *l = bucket_nocow_lock(t, dev_bucket);  in bch2_bucket_nocow_unlock()  local
28 	int lock_val = flags ? 1 : -1;  in bch2_bucket_nocow_unlock()
31 	for (i = 0; i < ARRAY_SIZE(l->b); i++)  in bch2_bucket_nocow_unlock()
32 		if (l->b[i] == dev_bucket) {  in bch2_bucket_nocow_unlock()
33 			int v = atomic_sub_return(lock_val, &l->l[i]);  in bch2_bucket_nocow_unlock()
37 				closure_wake_up(&l->wait);  in bch2_bucket_nocow_unlock()
44 bool __bch2_bucket_nocow_trylock(struct nocow_lock_bucket *l,  in __bch2_bucket_nocow_trylock()  argument
47 	int v, lock_val = flags ? 1 : -1;  in __bch2_bucket_nocow_trylock()
50 	spin_lock(&l->lock);  in __bch2_bucket_nocow_trylock()
52 	for (i = 0; i < ARRAY_SIZE(l->b); i++)  in __bch2_bucket_nocow_trylock()
53 		if (l->b[i] == dev_bucket)  in __bch2_bucket_nocow_trylock()
56 	for (i = 0; i < ARRAY_SIZE(l->b); i++)  in __bch2_bucket_nocow_trylock()
57 		if (!atomic_read(&l->l[i])) {  in __bch2_bucket_nocow_trylock()
58 			l->b[i] = dev_bucket;  in __bch2_bucket_nocow_trylock()
62 	spin_unlock(&l->lock);  in __bch2_bucket_nocow_trylock()
65 	v = atomic_read(&l->l[i]);  in __bch2_bucket_nocow_trylock()
69 	v = atomic_read(&l->l[i]);  in __bch2_bucket_nocow_trylock()
74 	atomic_add(lock_val, &l->l[i]);  in __bch2_bucket_nocow_trylock()
75 	spin_unlock(&l->lock);  in __bch2_bucket_nocow_trylock()
80 			      struct nocow_lock_bucket *l,  in __bch2_bucket_nocow_lock()  argument
83 	if (!__bch2_bucket_nocow_trylock(l, dev_bucket, flags)) {  in __bch2_bucket_nocow_lock()
87 		__closure_wait_event(&l->wait, __bch2_bucket_nocow_trylock(l, dev_bucket, flags));  in __bch2_bucket_nocow_lock()
96 	struct nocow_lock_bucket *l;  in bch2_nocow_locks_to_text()  local
98 	for (l = t->l; l < t->l + ARRAY_SIZE(t->l); l++) {  in bch2_nocow_locks_to_text()
101 		for (i = 0; i < ARRAY_SIZE(l->l); i++)  in bch2_nocow_locks_to_text()
102 			v |= atomic_read(&l->l[i]);  in bch2_nocow_locks_to_text()
113 		for (i = 0; i < ARRAY_SIZE(l->l); i++) {  in bch2_nocow_locks_to_text()
114 			int v = atomic_read(&l->l[i]);  in bch2_nocow_locks_to_text()
116 				bch2_bpos_to_text(out, u64_to_bucket(l->b[i]));  in bch2_nocow_locks_to_text()
131 	for (struct nocow_lock_bucket *l = t->l; l < t->l + ARRAY_SIZE(t->l); l++)  in bch2_fs_nocow_locking_exit()  local
132 		for (unsigned j = 0; j < ARRAY_SIZE(l->l); j++)  in bch2_fs_nocow_locking_exit()
133 			BUG_ON(atomic_read(&l->l[j]));  in bch2_fs_nocow_locking_exit()
140 	for (struct nocow_lock_bucket *l = t->l; l < t->l + ARRAY_SIZE(t->l); l++)  in bch2_fs_nocow_locking_init()  local
141 		spin_lock_init(&l->lock);  in bch2_fs_nocow_locking_init()