57 	struct afs_permits *permits =  in afs_permits_rcu()  local
61 	for (i = 0; i < permits->nr_permits; i++)  in afs_permits_rcu()
62 		key_put(permits->permits[i].key);  in afs_permits_rcu()
63 	kfree(permits);  in afs_permits_rcu()
69 void afs_put_permits(struct afs_permits *permits)  in afs_put_permits()  argument
71 	if (permits && refcount_dec_and_test(&permits->usage)) {  in afs_put_permits()
73 		hash_del_rcu(&permits->hash_node);  in afs_put_permits()
75 		call_rcu(&permits->rcu, afs_permits_rcu);  in afs_put_permits()
84 	struct afs_permits *permits;  in afs_clear_permits()  local
87 	permits = rcu_dereference_protected(vnode->permit_cache,  in afs_clear_permits()
92 	afs_put_permits(permits);  in afs_clear_permits()
99 static void afs_hash_permits(struct afs_permits *permits)  in afs_hash_permits()  argument
101 	unsigned long h = permits->nr_permits;  in afs_hash_permits()
104 	for (i = 0; i < permits->nr_permits; i++) {  in afs_hash_permits()
105 		h += (unsigned long)permits->permits[i].key / sizeof(void *);  in afs_hash_permits()
106 		h += permits->permits[i].access;  in afs_hash_permits()
109 	permits->h = h;  in afs_hash_permits()
121 	struct afs_permits *permits, *xpermits, *replacement, *zap, *new = NULL;  in afs_cache_permit()  local
135 	permits = rcu_dereference(vnode->permit_cache);  in afs_cache_permit()
136 	if (permits) {  in afs_cache_permit()
137 		if (!permits->invalidated) {  in afs_cache_permit()
138 			for (i = 0; i < permits->nr_permits; i++) {  in afs_cache_permit()
139 				if (permits->permits[i].key < key)  in afs_cache_permit()
141 				if (permits->permits[i].key > key)  in afs_cache_permit()
143 				if (permits->permits[i].access != caller_access) {  in afs_cache_permit()
159 		changed |= permits->invalidated;  in afs_cache_permit()
160 		size = permits->nr_permits;  in afs_cache_permit()
167 			if (permits != rcu_access_pointer(vnode->permit_cache))  in afs_cache_permit()
172 			afs_put_permits(permits);  in afs_cache_permit()
173 			permits = NULL;  in afs_cache_permit()
184 	if (permits && !refcount_inc_not_zero(&permits->usage))  in afs_cache_permit()
205 	if (permits) {  in afs_cache_permit()
206 		for (i = 0; i < permits->nr_permits; i++) {  in afs_cache_permit()
207 			if (j == i && permits->permits[i].key > key) {  in afs_cache_permit()
208 				new->permits[j].key = key;  in afs_cache_permit()
209 				new->permits[j].access = caller_access;  in afs_cache_permit()
212 			new->permits[j].key = permits->permits[i].key;  in afs_cache_permit()
213 			new->permits[j].access = permits->permits[i].access;  in afs_cache_permit()
219 		new->permits[j].key = key;  in afs_cache_permit()
220 		new->permits[j].access = caller_access;  in afs_cache_permit()
232 		    memcmp(xpermits->permits, new->permits,  in afs_cache_permit()
245 		key_get(new->permits[i].key);  in afs_cache_permit()
258 	    zap == permits)  in afs_cache_permit()
265 	afs_put_permits(permits);  in afs_cache_permit()
286 	struct afs_permits *permits;  in afs_check_permit()  local
300 		permits = rcu_dereference(vnode->permit_cache);  in afs_check_permit()
301 		if (permits) {  in afs_check_permit()
302 			for (i = 0; i < permits->nr_permits; i++) {  in afs_check_permit()
303 				if (permits->permits[i].key < key)  in afs_check_permit()
305 				if (permits->permits[i].key > key)  in afs_check_permit()
308 				*_access = permits->permits[i].access;  in afs_check_permit()
309 				valid = !permits->invalidated;  in afs_check_permit()