diff options
Diffstat (limited to 'lib/rhashtable.c')
| -rw-r--r-- | lib/rhashtable.c | 38 |
1 files changed, 18 insertions, 20 deletions
diff --git a/lib/rhashtable.c b/lib/rhashtable.c index 6529fe1b45c1..bdb7e4cadf05 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Resizable, Scalable, Concurrent Hash Table * @@ -8,10 +9,6 @@ * Code partially derived from nft_hash * Rewritten with rehash code from br_multicast plus single list * pointer as suggested by Josh Triplett - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/atomic.h> @@ -34,7 +31,7 @@ union nested_table { union nested_table __rcu *table; - struct rhash_lock_head __rcu *bucket; + struct rhash_lock_head *bucket; }; static u32 head_hashfn(struct rhashtable *ht, @@ -131,7 +128,7 @@ static union nested_table *nested_table_alloc(struct rhashtable *ht, INIT_RHT_NULLS_HEAD(ntbl[i].bucket); } - if (cmpxchg(prev, NULL, ntbl) == NULL) + if (cmpxchg((union nested_table **)prev, NULL, ntbl) == NULL) return ntbl; /* Raced with another thread. */ kfree(ntbl); @@ -216,7 +213,7 @@ static struct bucket_table *rhashtable_last_table(struct rhashtable *ht, } static int rhashtable_rehash_one(struct rhashtable *ht, - struct rhash_lock_head __rcu **bkt, + struct rhash_lock_head **bkt, unsigned int old_hash) { struct bucket_table *old_tbl = rht_dereference(ht->tbl, ht); @@ -269,7 +266,7 @@ static int rhashtable_rehash_chain(struct rhashtable *ht, unsigned int old_hash) { struct bucket_table *old_tbl = rht_dereference(ht->tbl, ht); - struct rhash_lock_head __rcu **bkt = rht_bucket_var(old_tbl, old_hash); + struct rhash_lock_head **bkt = rht_bucket_var(old_tbl, old_hash); int err; if (!bkt) @@ -296,7 +293,8 @@ static int rhashtable_rehash_attach(struct rhashtable *ht, * rcu_assign_pointer(). */ - if (cmpxchg(&old_tbl->future_tbl, NULL, new_tbl) != NULL) + if (cmpxchg((struct bucket_table **)&old_tbl->future_tbl, NULL, + new_tbl) != NULL) return -EEXIST; return 0; @@ -478,7 +476,7 @@ fail: } static void *rhashtable_lookup_one(struct rhashtable *ht, - struct rhash_lock_head __rcu **bkt, + struct rhash_lock_head **bkt, struct bucket_table *tbl, unsigned int hash, const void *key, struct rhash_head *obj) { @@ -529,7 +527,7 @@ static void *rhashtable_lookup_one(struct rhashtable *ht, } static struct bucket_table *rhashtable_insert_one(struct rhashtable *ht, - struct rhash_lock_head __rcu **bkt, + struct rhash_lock_head **bkt, struct bucket_table *tbl, unsigned int hash, struct rhash_head *obj, @@ -584,7 +582,7 @@ static void *rhashtable_try_insert(struct rhashtable *ht, const void *key, { struct bucket_table *new_tbl; struct bucket_table *tbl; - struct rhash_lock_head __rcu **bkt; + struct rhash_lock_head **bkt; unsigned int hash; void *data; @@ -1166,8 +1164,8 @@ void rhashtable_destroy(struct rhashtable *ht) } EXPORT_SYMBOL_GPL(rhashtable_destroy); -struct rhash_lock_head __rcu **__rht_bucket_nested(const struct bucket_table *tbl, - unsigned int hash) +struct rhash_lock_head **__rht_bucket_nested(const struct bucket_table *tbl, + unsigned int hash) { const unsigned int shift = PAGE_SHIFT - ilog2(sizeof(void *)); unsigned int index = hash & ((1 << tbl->nest) - 1); @@ -1195,10 +1193,10 @@ struct rhash_lock_head __rcu **__rht_bucket_nested(const struct bucket_table *tb } EXPORT_SYMBOL_GPL(__rht_bucket_nested); -struct rhash_lock_head __rcu **rht_bucket_nested(const struct bucket_table *tbl, - unsigned int hash) +struct rhash_lock_head **rht_bucket_nested(const struct bucket_table *tbl, + unsigned int hash) { - static struct rhash_lock_head __rcu *rhnull; + static struct rhash_lock_head *rhnull; if (!rhnull) INIT_RHT_NULLS_HEAD(rhnull); @@ -1206,9 +1204,9 @@ struct rhash_lock_head __rcu **rht_bucket_nested(const struct bucket_table *tbl, } EXPORT_SYMBOL_GPL(rht_bucket_nested); -struct rhash_lock_head __rcu **rht_bucket_nested_insert(struct rhashtable *ht, - struct bucket_table *tbl, - unsigned int hash) +struct rhash_lock_head **rht_bucket_nested_insert(struct rhashtable *ht, + struct bucket_table *tbl, + unsigned int hash) { const unsigned int shift = PAGE_SHIFT - ilog2(sizeof(void *)); unsigned int index = hash & ((1 << tbl->nest) - 1); |