From: Markus Pargmann <mpa@pengutronix.de>
To: Marek Lindner <mareklindner@neomailbox.ch>,
Simon Wunderlich <sw@simonwunderlich.de>,
Antonio Quartulli <antonio@meshcoding.com>
Cc: b.a.t.m.a.n@lists.open-mesh.org
Subject: [B.A.T.M.A.N.] [PATCH 08/31] batman-adv: hash, remove function implementations from header
Date: Tue, 2 Dec 2014 12:16:26 +0100 [thread overview]
Message-ID: <1417519009-20699-9-git-send-email-mpa@pengutronix.de> (raw)
In-Reply-To: <1417519009-20699-1-git-send-email-mpa@pengutronix.de>
These functions are too big to be implemented as inline functions in the
header file. This patch moves them to the hash c file.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---
hash.c | 132 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
hash.h | 141 +++++------------------------------------------------------------
2 files changed, 142 insertions(+), 131 deletions(-)
diff --git a/hash.c b/hash.c
index 7c1c63080e20..c68bb8b3e8b9 100644
--- a/hash.c
+++ b/hash.c
@@ -37,6 +37,35 @@ void batadv_hash_destroy(struct batadv_hashtable *hash)
kfree(hash);
}
+/* remove the hash structure. if hashdata_free_cb != NULL, this function will be
+ * called to remove the elements inside of the hash. if you don't remove the
+ * elements, memory might be leaked.
+ */
+void batadv_hash_delete(struct batadv_hashtable *hash,
+ batadv_hashdata_free_cb free_cb, void *arg)
+{
+ struct hlist_head *head;
+ struct hlist_node *node, *node_tmp;
+ spinlock_t *list_lock; /* spinlock to protect write access */
+ uint32_t i;
+
+ for (i = 0; i < hash->size; i++) {
+ head = &hash->table[i];
+ list_lock = &hash->list_locks[i];
+
+ spin_lock_bh(list_lock);
+ hlist_for_each_safe(node, node_tmp, head) {
+ hlist_del_rcu(node);
+
+ if (free_cb)
+ free_cb(node, arg);
+ }
+ spin_unlock_bh(list_lock);
+ }
+
+ batadv_hash_destroy(hash);
+}
+
/* allocates and clears the hash */
struct batadv_hashtable *batadv_hash_new(uint32_t size)
{
@@ -74,3 +103,106 @@ void batadv_hash_set_lock_class(struct batadv_hashtable *hash,
for (i = 0; i < hash->size; i++)
lockdep_set_class(&hash->list_locks[i], key);
}
+
+/**
+ * batadv_hash_bytes - hash some bytes and add them to the previous hash
+ * @hash: previous hash value
+ * @data: data to be hashed
+ * @size: number of bytes to be hashed
+ *
+ * Returns the new hash value.
+ */
+uint32_t batadv_hash_bytes(uint32_t hash, const void *data, uint32_t size)
+{
+ const unsigned char *key = data;
+ int i;
+
+ for (i = 0; i < size; i++) {
+ hash += key[i];
+ hash += (hash << 10);
+ hash ^= (hash >> 6);
+ }
+
+ return hash;
+}
+
+/**
+ * batadv_hash_add - adds data to the hashtable
+ * @hash: storage hash table
+ * @compare: callback to determine if 2 hash elements are identical
+ * @choose: callback calculating the hash index
+ * @data: data passed to the aforementioned callbacks as argument
+ * @data_node: to be added element
+ *
+ * Returns 0 on success, 1 if the element already is in the hash
+ * and -1 on error.
+ */
+int batadv_hash_add(struct batadv_hashtable *hash,
+ batadv_hashdata_compare_cb compare,
+ batadv_hashdata_choose_cb choose, const void *data,
+ struct hlist_node *data_node)
+{
+ uint32_t index;
+ int ret = -1;
+ struct hlist_head *head;
+ struct hlist_node *node;
+ spinlock_t *list_lock; /* spinlock to protect write access */
+
+ if (!hash)
+ goto out;
+
+ index = choose(data, hash->size);
+ head = &hash->table[index];
+ list_lock = &hash->list_locks[index];
+
+ spin_lock_bh(list_lock);
+
+ hlist_for_each(node, head) {
+ if (!compare(node, data))
+ continue;
+
+ ret = 1;
+ goto unlock;
+ }
+
+ /* no duplicate found in list, add new element */
+ hlist_add_head_rcu(data_node, head);
+
+ ret = 0;
+
+unlock:
+ spin_unlock_bh(list_lock);
+out:
+ return ret;
+}
+
+/* removes data from hash, if found. returns pointer do data on success, so you
+ * can remove the used structure yourself, or NULL on error . data could be the
+ * structure you use with just the key filled, we just need the key for
+ * comparing.
+ */
+void *batadv_hash_remove(struct batadv_hashtable *hash,
+ batadv_hashdata_compare_cb compare,
+ batadv_hashdata_choose_cb choose, void *data)
+{
+ uint32_t index;
+ struct hlist_node *node;
+ struct hlist_head *head;
+ void *data_save = NULL;
+
+ index = choose(data, hash->size);
+ head = &hash->table[index];
+
+ spin_lock_bh(&hash->list_locks[index]);
+ hlist_for_each(node, head) {
+ if (!compare(node, data))
+ continue;
+
+ data_save = node;
+ hlist_del_rcu(node);
+ break;
+ }
+ spin_unlock_bh(&hash->list_locks[index]);
+
+ return data_save;
+}
diff --git a/hash.h b/hash.h
index 539fc1266793..0761b64be337 100644
--- a/hash.h
+++ b/hash.h
@@ -49,139 +49,18 @@ void batadv_hash_set_lock_class(struct batadv_hashtable *hash,
/* free only the hashtable and the hash itself. */
void batadv_hash_destroy(struct batadv_hashtable *hash);
-/* remove the hash structure. if hashdata_free_cb != NULL, this function will be
- * called to remove the elements inside of the hash. if you don't remove the
- * elements, memory might be leaked.
- */
-static inline void batadv_hash_delete(struct batadv_hashtable *hash,
- batadv_hashdata_free_cb free_cb,
- void *arg)
-{
- struct hlist_head *head;
- struct hlist_node *node, *node_tmp;
- spinlock_t *list_lock; /* spinlock to protect write access */
- uint32_t i;
-
- for (i = 0; i < hash->size; i++) {
- head = &hash->table[i];
- list_lock = &hash->list_locks[i];
-
- spin_lock_bh(list_lock);
- hlist_for_each_safe(node, node_tmp, head) {
- hlist_del_rcu(node);
-
- if (free_cb)
- free_cb(node, arg);
- }
- spin_unlock_bh(list_lock);
- }
-
- batadv_hash_destroy(hash);
-}
-
-/**
- * batadv_hash_bytes - hash some bytes and add them to the previous hash
- * @hash: previous hash value
- * @data: data to be hashed
- * @size: number of bytes to be hashed
- *
- * Returns the new hash value.
- */
-static inline uint32_t batadv_hash_bytes(uint32_t hash, const void *data,
- uint32_t size)
-{
- const unsigned char *key = data;
- int i;
-
- for (i = 0; i < size; i++) {
- hash += key[i];
- hash += (hash << 10);
- hash ^= (hash >> 6);
- }
- return hash;
-}
-
-/**
- * batadv_hash_add - adds data to the hashtable
- * @hash: storage hash table
- * @compare: callback to determine if 2 hash elements are identical
- * @choose: callback calculating the hash index
- * @data: data passed to the aforementioned callbacks as argument
- * @data_node: to be added element
- *
- * Returns 0 on success, 1 if the element already is in the hash
- * and -1 on error.
- */
-static inline int batadv_hash_add(struct batadv_hashtable *hash,
- batadv_hashdata_compare_cb compare,
- batadv_hashdata_choose_cb choose,
- const void *data,
- struct hlist_node *data_node)
-{
- uint32_t index;
- int ret = -1;
- struct hlist_head *head;
- struct hlist_node *node;
- spinlock_t *list_lock; /* spinlock to protect write access */
-
- if (!hash)
- goto out;
-
- index = choose(data, hash->size);
- head = &hash->table[index];
- list_lock = &hash->list_locks[index];
-
- spin_lock_bh(list_lock);
-
- hlist_for_each(node, head) {
- if (!compare(node, data))
- continue;
-
- ret = 1;
- goto unlock;
- }
-
- /* no duplicate found in list, add new element */
- hlist_add_head_rcu(data_node, head);
-
- ret = 0;
-
-unlock:
- spin_unlock_bh(list_lock);
-out:
- return ret;
-}
-
-/* removes data from hash, if found. returns pointer do data on success, so you
- * can remove the used structure yourself, or NULL on error . data could be the
- * structure you use with just the key filled, we just need the key for
- * comparing.
- */
-static inline void *batadv_hash_remove(struct batadv_hashtable *hash,
- batadv_hashdata_compare_cb compare,
- batadv_hashdata_choose_cb choose,
- void *data)
-{
- uint32_t index;
- struct hlist_node *node;
- struct hlist_head *head;
- void *data_save = NULL;
-
- index = choose(data, hash->size);
- head = &hash->table[index];
+uint32_t batadv_hash_bytes(uint32_t hash, const void *data, uint32_t size);
- spin_lock_bh(&hash->list_locks[index]);
- hlist_for_each(node, head) {
- if (!compare(node, data))
- continue;
+int batadv_hash_add(struct batadv_hashtable *hash,
+ batadv_hashdata_compare_cb compare,
+ batadv_hashdata_choose_cb choose, const void *data,
+ struct hlist_node *data_node);
- data_save = node;
- hlist_del_rcu(node);
- break;
- }
- spin_unlock_bh(&hash->list_locks[index]);
+void batadv_hash_delete(struct batadv_hashtable *hash,
+ batadv_hashdata_free_cb free_cb, void *arg);
- return data_save;
-}
+void *batadv_hash_remove(struct batadv_hashtable *hash,
+ batadv_hashdata_compare_cb compare,
+ batadv_hashdata_choose_cb choose, void *data);
#endif /* _NET_BATMAN_ADV_HASH_H_ */
--
2.1.3
next prev parent reply other threads:[~2014-12-02 11:16 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-02 11:16 [B.A.T.M.A.N.] [PATCH 00/31] batman-adv: Cleanups Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 01/31] batman-adv: debugfs, avoid compiling for !DEBUG_FS Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 02/31] batman-adv: Separate logging header Markus Pargmann
2014-12-02 15:59 ` Martin Hundebøll
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 03/31] batman-adv: iv_ogm, Reduce code duplication Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 04/31] batman-adv: iv_ogm, divide and round for ring buffer avg Markus Pargmann
2015-01-12 15:52 ` Simon Wunderlich
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 05/31] batman-adv: init, Add some error handling Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 06/31] batman-adv: tvlv realloc, move error handling into if block Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 07/31] batman-adv: split tvlv into a seperate file Markus Pargmann
2014-12-02 11:16 ` Markus Pargmann [this message]
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 09/31] batman-adv: hash, Add helper functions Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 10/31] batman-adv: hash, replace direct hash structure accesses Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 11/31] batman-adv: hash, make struct hashtable private Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 12/31] batman-adv: hash, add used linux headers Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 13/31] batman-adv: Makefile, Sort alphabetically Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 14/31] batman-adv: iv_ogm_iface_enable, direct return values Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 15/31] batman-adv: iv_ogm_aggr_packet, bool return value Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 16/31] batman-adv: iv_ogm_send_to_if, declare char* as const Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 17/31] batman-adv: iv_ogm_can_aggregate, code readability Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 18/31] batman-adv: iv_ogm_orig_update, remove unnecessary brackets Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 19/31] batman-adv: iv_ogm_aggregate_new, simplify error handling Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 20/31] batman-adv: iv_ogm_queue_add, Simplify expressions Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 21/31] batman-adv: iv_ogm_orig_update, style, add missin brackets Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 22/31] batman-adv: iv_ogm, Fix dup_status comment Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 23/31] batman-adv: iv_ogm, fix coding style Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 24/31] batman-adv: iv_ogm, fix comment function name Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 25/31] batman-adv: types, Fix comment on bcast_own Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 26/31] batman-adv: main, Convert is_my_mac() to bool Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 27/31] batman-adv: main, batadv_compare_eth return bool Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 28/31] batman-adv: Remove unnecessary ret variable Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 29/31] batman-adv: Remove unnecessary ret variable in algo_register Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 30/31] batman-adv: packet.h, add some missing includes Markus Pargmann
2014-12-02 11:16 ` [B.A.T.M.A.N.] [PATCH 31/31] batman-adv: types.h, add missing include Markus Pargmann
-- strict thread matches above, loose matches on Subject: below --
2014-12-02 13:03 [B.A.T.M.A.N.] [PATCH 08/31] batman-adv: hash, remove function implementations from header Sven Eckelmann
2014-12-02 13:53 ` Markus Pargmann
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