diff options
author | Marek Lindner <mareklindner@neomailbox.ch> | 2015-06-28 14:16:06 (GMT) |
---|---|---|
committer | Antonio Quartulli <antonio@meshcoding.com> | 2015-08-24 22:12:22 (GMT) |
commit | 7c26a53ba5e7e4bf2be3cb93f2fffaefccff2e3b (patch) | |
tree | 9d1356053bbb6f98a862cfb17d2b8e8a1055c03a /net | |
parent | 0b8336f5fc26f263821534d7a9a3633748692207 (diff) | |
download | linux-7c26a53ba5e7e4bf2be3cb93f2fffaefccff2e3b.tar.xz |
batman-adv: convert bat_priv->tt.req_list to hlist
Since the list's tail is never accessed using a double linked list head
wastes memory.
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Diffstat (limited to 'net')
-rw-r--r-- | net/batman-adv/main.c | 2 | ||||
-rw-r--r-- | net/batman-adv/translation-table.c | 29 | ||||
-rw-r--r-- | net/batman-adv/types.h | 4 |
3 files changed, 19 insertions, 16 deletions
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c index 40750cb..d277ba7 100644 --- a/net/batman-adv/main.c +++ b/net/batman-adv/main.c @@ -148,7 +148,7 @@ int batadv_mesh_init(struct net_device *soft_iface) INIT_HLIST_HEAD(&bat_priv->mcast.want_all_ipv6_list); #endif INIT_LIST_HEAD(&bat_priv->tt.changes_list); - INIT_LIST_HEAD(&bat_priv->tt.req_list); + INIT_HLIST_HEAD(&bat_priv->tt.req_list); INIT_LIST_HEAD(&bat_priv->tt.roam_list); #ifdef CONFIG_BATMAN_ADV_MCAST INIT_HLIST_HEAD(&bat_priv->mcast.mla_list); diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 596e326..734b456 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -2224,12 +2224,13 @@ static u32 batadv_tt_local_crc(struct batadv_priv *bat_priv, static void batadv_tt_req_list_free(struct batadv_priv *bat_priv) { - struct batadv_tt_req_node *node, *safe; + struct batadv_tt_req_node *node; + struct hlist_node *safe; spin_lock_bh(&bat_priv->tt.req_list_lock); - list_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) { - list_del_init(&node->list); + hlist_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) { + hlist_del_init(&node->list); kfree(node); } @@ -2259,13 +2260,14 @@ static void batadv_tt_save_orig_buffer(struct batadv_priv *bat_priv, static void batadv_tt_req_purge(struct batadv_priv *bat_priv) { - struct batadv_tt_req_node *node, *safe; + struct batadv_tt_req_node *node; + struct hlist_node *safe; spin_lock_bh(&bat_priv->tt.req_list_lock); - list_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) { + hlist_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) { if (batadv_has_timed_out(node->issued_at, BATADV_TT_REQUEST_TIMEOUT)) { - list_del_init(&node->list); + hlist_del_init(&node->list); kfree(node); } } @@ -2287,7 +2289,7 @@ batadv_tt_req_node_new(struct batadv_priv *bat_priv, struct batadv_tt_req_node *tt_req_node_tmp, *tt_req_node = NULL; spin_lock_bh(&bat_priv->tt.req_list_lock); - list_for_each_entry(tt_req_node_tmp, &bat_priv->tt.req_list, list) { + hlist_for_each_entry(tt_req_node_tmp, &bat_priv->tt.req_list, list) { if (batadv_compare_eth(tt_req_node_tmp, orig_node) && !batadv_has_timed_out(tt_req_node_tmp->issued_at, BATADV_TT_REQUEST_TIMEOUT)) @@ -2301,7 +2303,7 @@ batadv_tt_req_node_new(struct batadv_priv *bat_priv, ether_addr_copy(tt_req_node->addr, orig_node->orig); tt_req_node->issued_at = jiffies; - list_add(&tt_req_node->list, &bat_priv->tt.req_list); + hlist_add_head(&tt_req_node->list, &bat_priv->tt.req_list); unlock: spin_unlock_bh(&bat_priv->tt.req_list_lock); return tt_req_node; @@ -2552,8 +2554,8 @@ out: batadv_hardif_free_ref(primary_if); if (ret && tt_req_node) { spin_lock_bh(&bat_priv->tt.req_list_lock); - /* list_del_init() verifies tt_req_node still is in the list */ - list_del_init(&tt_req_node->list); + /* hlist_del_init() verifies tt_req_node still is in the list */ + hlist_del_init(&tt_req_node->list); spin_unlock_bh(&bat_priv->tt.req_list_lock); kfree(tt_req_node); } @@ -2949,7 +2951,8 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv, struct batadv_tvlv_tt_data *tt_data, u8 *resp_src, u16 num_entries) { - struct batadv_tt_req_node *node, *safe; + struct batadv_tt_req_node *node; + struct hlist_node *safe; struct batadv_orig_node *orig_node = NULL; struct batadv_tvlv_tt_change *tt_change; u8 *tvlv_ptr = (u8 *)tt_data; @@ -2987,10 +2990,10 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv, /* Delete the tt_req_node from pending tt_requests list */ spin_lock_bh(&bat_priv->tt.req_list_lock); - list_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) { + hlist_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) { if (!batadv_compare_eth(node->addr, resp_src)) continue; - list_del_init(&node->list); + hlist_del_init(&node->list); kfree(node); } diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h index fe3695c..2f5e6c3 100644 --- a/net/batman-adv/types.h +++ b/net/batman-adv/types.h @@ -537,7 +537,7 @@ struct batadv_priv_tt { struct list_head changes_list; struct batadv_hashtable *local_hash; struct batadv_hashtable *global_hash; - struct list_head req_list; + struct hlist_head req_list; struct list_head roam_list; spinlock_t changes_list_lock; /* protects changes */ spinlock_t req_list_lock; /* protects req_list */ @@ -1006,7 +1006,7 @@ struct batadv_tt_change_node { struct batadv_tt_req_node { u8 addr[ETH_ALEN]; unsigned long issued_at; - struct list_head list; + struct hlist_node list; }; /** |