115 	struct afs_permits *permits =  in afs_permits_rcu()  local
119 	for (i = 0; i < permits->nr_permits; i++)  in afs_permits_rcu()
120 		key_put(permits->permits[i].key);  in afs_permits_rcu()
121 	kfree(permits);  in afs_permits_rcu()
127 void afs_put_permits(struct afs_permits *permits)  in afs_put_permits()  argument
129 	if (permits && refcount_dec_and_test(&permits->usage)) {  in afs_put_permits()
131 		hash_del_rcu(&permits->hash_node);  in afs_put_permits()
133 		call_rcu(&permits->rcu, afs_permits_rcu);  in afs_put_permits()
142 	struct afs_permits *permits;  in afs_clear_permits()  local
145 	permits = rcu_dereference_protected(vnode->permit_cache,  in afs_clear_permits()
150 	afs_put_permits(permits);  in afs_clear_permits()
157 static void afs_hash_permits(struct afs_permits *permits)  in afs_hash_permits()  argument
159 	unsigned long h = permits->nr_permits;  in afs_hash_permits()
162 	for (i = 0; i < permits->nr_permits; i++) {  in afs_hash_permits()
163 		h += (unsigned long)permits->permits[i].key / sizeof(void *);  in afs_hash_permits()
164 		h += permits->permits[i].access;  in afs_hash_permits()
167 	permits->h = h;  in afs_hash_permits()
179 	struct afs_permits *permits, *xpermits, *replacement, *zap, *new = NULL;  in afs_cache_permit()  local
193 	permits = rcu_dereference(vnode->permit_cache);  in afs_cache_permit()
194 	if (permits) {  in afs_cache_permit()
195 		if (!permits->invalidated) {  in afs_cache_permit()
196 			for (i = 0; i < permits->nr_permits; i++) {  in afs_cache_permit()
197 				if (permits->permits[i].key < key)  in afs_cache_permit()
199 				if (permits->permits[i].key > key)  in afs_cache_permit()
201 				if (permits->permits[i].access != caller_access) {  in afs_cache_permit()
217 		changed |= permits->invalidated;  in afs_cache_permit()
218 		size = permits->nr_permits;  in afs_cache_permit()
225 			if (permits != rcu_access_pointer(vnode->permit_cache))  in afs_cache_permit()
230 			afs_put_permits(permits);  in afs_cache_permit()
231 			permits = NULL;  in afs_cache_permit()
242 	if (permits && !refcount_inc_not_zero(&permits->usage))  in afs_cache_permit()
255 	new = kzalloc_flex(*new, permits, size, GFP_NOFS);  in afs_cache_permit()
262 	if (permits) {  in afs_cache_permit()
263 		for (i = 0; i < permits->nr_permits; i++) {  in afs_cache_permit()
264 			if (j == i && permits->permits[i].key > key) {  in afs_cache_permit()
265 				new->permits[j].key = key;  in afs_cache_permit()
266 				new->permits[j].access = caller_access;  in afs_cache_permit()
269 			new->permits[j].key = permits->permits[i].key;  in afs_cache_permit()
270 			new->permits[j].access = permits->permits[i].access;  in afs_cache_permit()
276 		new->permits[j].key = key;  in afs_cache_permit()
277 		new->permits[j].access = caller_access;  in afs_cache_permit()
289 		    memcmp(xpermits->permits, new->permits,  in afs_cache_permit()
302 		key_get(new->permits[i].key);  in afs_cache_permit()
315 	if (!afs_cb_is_broken(cb_break, vnode) && zap == permits)  in afs_cache_permit()
323 	afs_put_permits(permits);  in afs_cache_permit()
339 	const struct afs_permits *permits;  in afs_check_permit_rcu()  local
352 	permits = rcu_dereference(vnode->permit_cache);  in afs_check_permit_rcu()
353 	if (permits) {  in afs_check_permit_rcu()
354 		for (i = 0; i < permits->nr_permits; i++) {  in afs_check_permit_rcu()
355 			if (permits->permits[i].key < key)  in afs_check_permit_rcu()
357 			if (permits->permits[i].key > key)  in afs_check_permit_rcu()
360 			*_access = permits->permits[i].access;  in afs_check_permit_rcu()
361 			_leave(" = %u [perm %x]", !permits->invalidated, *_access);  in afs_check_permit_rcu()
362 			return !permits->invalidated;  in afs_check_permit_rcu()
378 	struct afs_permits *permits;  in afs_check_permit()  local
392 		permits = rcu_dereference(vnode->permit_cache);  in afs_check_permit()
393 		if (permits) {  in afs_check_permit()
394 			for (i = 0; i < permits->nr_permits; i++) {  in afs_check_permit()
395 				if (permits->permits[i].key < key)  in afs_check_permit()
397 				if (permits->permits[i].key > key)  in afs_check_permit()
400 				*_access = permits->permits[i].access;  in afs_check_permit()
401 				valid = !permits->invalidated;  in afs_check_permit()