1 files changed, 13 insertions, 3 deletions

diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index 08e664b21f5a..133ccb39137a 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -245,16 +245,17 @@ void *rhashtable_insert_slow(struct rhashtable *ht, const void *key,
 void rhashtable_walk_enter(struct rhashtable *ht,
 			   struct rhashtable_iter *iter);
 void rhashtable_walk_exit(struct rhashtable_iter *iter);
-int rhashtable_walk_start_check(struct rhashtable_iter *iter) __acquires(RCU);
+int rhashtable_walk_start_check(struct rhashtable_iter *iter) __acquires_shared(RCU);
 
 static inline void rhashtable_walk_start(struct rhashtable_iter *iter)
+	__acquires_shared(RCU)
 {
 	(void)rhashtable_walk_start_check(iter);
 }
 
 void *rhashtable_walk_next(struct rhashtable_iter *iter);
 void *rhashtable_walk_peek(struct rhashtable_iter *iter);
-void rhashtable_walk_stop(struct rhashtable_iter *iter) __releases(RCU);
+void rhashtable_walk_stop(struct rhashtable_iter *iter) __releases_shared(RCU);
 
 void rhashtable_free_and_destroy(struct rhashtable *ht,
 				 void (*free_fn)(void *ptr, void *arg),
@@ -325,6 +326,7 @@ static inline struct rhash_lock_head __rcu **rht_bucket_insert(
 
 static inline unsigned long rht_lock(struct bucket_table *tbl,
 				     struct rhash_lock_head __rcu **bkt)
+	__acquires(__bitlock(0, bkt))
 {
 	unsigned long flags;
 
@@ -337,6 +339,7 @@ static inline unsigned long rht_lock(struct bucket_table *tbl,
 static inline unsigned long rht_lock_nested(struct bucket_table *tbl,
 					struct rhash_lock_head __rcu **bucket,
 					unsigned int subclass)
+	__acquires(__bitlock(0, bucket))
 {
 	unsigned long flags;
 
@@ -349,6 +352,7 @@ static inline unsigned long rht_lock_nested(struct bucket_table *tbl,
 static inline void rht_unlock(struct bucket_table *tbl,
 			      struct rhash_lock_head __rcu **bkt,
 			      unsigned long flags)
+	__releases(__bitlock(0, bkt))
 {
 	lock_map_release(&tbl->dep_map);
 	bit_spin_unlock(0, (unsigned long *)bkt);
@@ -424,13 +428,14 @@ static inline void rht_assign_unlock(struct bucket_table *tbl,
 				     struct rhash_lock_head __rcu **bkt,
 				     struct rhash_head *obj,
 				     unsigned long flags)
+	__releases(__bitlock(0, bkt))
 {
 	if (rht_is_a_nulls(obj))
 		obj = NULL;
 	lock_map_release(&tbl->dep_map);
 	rcu_assign_pointer(*bkt, (void *)obj);
 	preempt_enable();
-	__release(bitlock);
+	__release(__bitlock(0, bkt));
 	local_irq_restore(flags);
 }
 
@@ -612,6 +617,7 @@ static __always_inline struct rhash_head *__rhashtable_lookup(
 	struct rhashtable *ht, const void *key,
 	const struct rhashtable_params params,
 	const enum rht_lookup_freq freq)
+	__must_hold_shared(RCU)
 {
 	struct rhashtable_compare_arg arg = {
 		.ht = ht,
@@ -666,6 +672,7 @@ restart:
 static __always_inline void *rhashtable_lookup(
 	struct rhashtable *ht, const void *key,
 	const struct rhashtable_params params)
+	__must_hold_shared(RCU)
 {
 	struct rhash_head *he = __rhashtable_lookup(ht, key, params,
 						    RHT_LOOKUP_NORMAL);
@@ -676,6 +683,7 @@ static __always_inline void *rhashtable_lookup(
 static __always_inline void *rhashtable_lookup_likely(
 	struct rhashtable *ht, const void *key,
 	const struct rhashtable_params params)
+	__must_hold_shared(RCU)
 {
 	struct rhash_head *he = __rhashtable_lookup(ht, key, params,
 						    RHT_LOOKUP_LIKELY);
@@ -727,6 +735,7 @@ static __always_inline void *rhashtable_lookup_fast(
 static __always_inline struct rhlist_head *rhltable_lookup(
 	struct rhltable *hlt, const void *key,
 	const struct rhashtable_params params)
+	__must_hold_shared(RCU)
 {
 	struct rhash_head *he = __rhashtable_lookup(&hlt->ht, key, params,
 						    RHT_LOOKUP_NORMAL);
@@ -737,6 +746,7 @@ static __always_inline struct rhlist_head *rhltable_lookup(
 static __always_inline struct rhlist_head *rhltable_lookup_likely(
 	struct rhltable *hlt, const void *key,
 	const struct rhashtable_params params)
+	__must_hold_shared(RCU)
 {
 	struct rhash_head *he = __rhashtable_lookup(&hlt->ht, key, params,
 						    RHT_LOOKUP_LIKELY);