[B.A.T.M.A.N.] [PATCH 2/7] batman-adv: move GW mode and selection class to private data structure

Antonio Quartulli
2016-05-05T18:46:38Z

To reduce the field pollution in our main batadv_priv data structure
we've already created some substructures so that we could group fields
in a convenient manner.

However gw_mode and gw_sel_class are still part of the main object.

More both fields to the GW private substructure.

Signed-off-by: Antonio Quartulli <a@unstable.cc>
---
net/batman-adv/gateway_client.c | 12 ++++++------
net/batman-adv/gateway_common.c | 6 +++---
net/batman-adv/soft-interface.c | 6 +++---
net/batman-adv/sysfs.c | 10 +++++-----
net/batman-adv/types.h | 8 ++++----
5 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 5839c56..31ba24e 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -192,7 +192,7 @@ batadv_gw_get_best_gw_node(struct batadv_priv *bat_priv)

tq_avg = router_ifinfo->bat_iv.tq_avg;

- switch (atomic_read(&bat_priv->gw_sel_class)) {
+ switch (atomic_read(&bat_priv->gw.sel_class)) {
case 1: /* fast connection */
tmp_gw_factor = tq_avg * tq_avg;
tmp_gw_factor *= gw_node->bandwidth_down;
@@ -255,7 +255,7 @@ void batadv_gw_check_client_stop(struct batadv_priv *bat_priv)
{
struct batadv_gw_node *curr_gw;

- if (atomic_read(&bat_priv->gw_mode) != BATADV_GW_MODE_CLIENT)
+ if (atomic_read(&bat_priv->gw.mode) != BATADV_GW_MODE_CLIENT)
return;

curr_gw = batadv_gw_get_selected_gw_node(bat_priv);
@@ -283,7 +283,7 @@ void batadv_gw_election(struct batadv_priv *bat_priv)
struct batadv_neigh_ifinfo *router_ifinfo = NULL;
char gw_addr[18] = { '\0' };

- if (atomic_read(&bat_priv->gw_mode) != BATADV_GW_MODE_CLIENT)
+ if (atomic_read(&bat_priv->gw.mode) != BATADV_GW_MODE_CLIENT)
goto out;

curr_gw = batadv_gw_get_selected_gw_node(bat_priv);
@@ -402,8 +402,8 @@ void batadv_gw_check_election(struct batadv_priv *bat_priv,
/* if the routing class is greater than 3 the value tells us how much
* greater the TQ value of the new gateway must be
*/
- if ((atomic_read(&bat_priv->gw_sel_class) > 3) &&
- (orig_tq_avg - gw_tq_avg < atomic_read(&bat_priv->gw_sel_class)))
+ if ((atomic_read(&bat_priv->gw.sel_class) > 3) &&
+ (orig_tq_avg - gw_tq_avg < atomic_read(&bat_priv->gw.sel_class)))
goto out;

batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
@@ -821,7 +821,7 @@ bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
if (!gw_node)
goto out;

- switch (atomic_read(&bat_priv->gw_mode)) {
+ switch (atomic_read(&bat_priv->gw.mode)) {
case BATADV_GW_MODE_SERVER:
/* If we are a GW then we are our best GW. We can artificially
* set the tq towards ourself as the maximum value
diff --git a/net/batman-adv/gateway_common.c b/net/batman-adv/gateway_common.c
index 4423047..3c26945 100644
--- a/net/batman-adv/gateway_common.c
+++ b/net/batman-adv/gateway_common.c
@@ -144,7 +144,7 @@ void batadv_gw_tvlv_container_update(struct batadv_priv *bat_priv)
u32 down, up;
char gw_mode;

- gw_mode = atomic_read(&bat_priv->gw_mode);
+ gw_mode = atomic_read(&bat_priv->gw.mode);

switch (gw_mode) {
case BATADV_GW_MODE_OFF:
@@ -241,8 +241,8 @@ static void batadv_gw_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,

/* restart gateway selection if fast or late switching was enabled */
if ((gateway.bandwidth_down != 0) &&
- (atomic_read(&bat_priv->gw_mode) == BATADV_GW_MODE_CLIENT) &&
- (atomic_read(&bat_priv->gw_sel_class) > 2))
+ (atomic_read(&bat_priv->gw.mode) == BATADV_GW_MODE_CLIENT) &&
+ (atomic_read(&bat_priv->gw.sel_class) > 2))
batadv_gw_check_election(bat_priv, orig);
}

diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index f37ce39..b591d12 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -255,7 +255,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
if (batadv_compare_eth(ethhdr->h_dest, ectp_addr))
goto dropped;

- gw_mode = atomic_read(&bat_priv->gw_mode);
+ gw_mode = atomic_read(&bat_priv->gw.mode);
if (is_multicast_ether_addr(ethhdr->h_dest)) {
/* if gw mode is off, broadcast every packet */
if (gw_mode == BATADV_GW_MODE_OFF) {
@@ -815,8 +815,8 @@ static int batadv_softif_init_late(struct net_device *dev)
atomic_set(&bat_priv->mcast.num_want_all_ipv4, 0);
atomic_set(&bat_priv->mcast.num_want_all_ipv6, 0);
#endif
- atomic_set(&bat_priv->gw_mode, BATADV_GW_MODE_OFF);
- atomic_set(&bat_priv->gw_sel_class, 20);
+ atomic_set(&bat_priv->gw.mode, BATADV_GW_MODE_OFF);
+ atomic_set(&bat_priv->gw.sel_class, 20);
atomic_set(&bat_priv->gw.bandwidth_down, 100);
atomic_set(&bat_priv->gw.bandwidth_up, 20);
atomic_set(&bat_priv->orig_interval, 1000);
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index b99ea80..6f664a2 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -427,7 +427,7 @@ static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr,
struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
int bytes_written;

- switch (atomic_read(&bat_priv->gw_mode)) {
+ switch (atomic_read(&bat_priv->gw.mode)) {
case BATADV_GW_MODE_CLIENT:
bytes_written = sprintf(buff, "%s\n",
BATADV_GW_MODE_CLIENT_NAME);
@@ -476,10 +476,10 @@ static ssize_t batadv_store_gw_mode(struct kobject *kobj,
return -EINVAL;
}

- if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp)
+ if (atomic_read(&bat_priv->gw.mode) == gw_mode_tmp)
return count;

- switch (atomic_read(&bat_priv->gw_mode)) {
+ switch (atomic_read(&bat_priv->gw.mode)) {
case BATADV_GW_MODE_CLIENT:
curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME;
break;
@@ -508,7 +508,7 @@ static ssize_t batadv_store_gw_mode(struct kobject *kobj,
* state
*/
batadv_gw_check_client_stop(bat_priv);
- atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp);
+ atomic_set(&bat_priv->gw.mode, (unsigned int)gw_mode_tmp);
batadv_gw_tvlv_container_update(bat_priv);
return count;
}
@@ -624,7 +624,7 @@ BATADV_ATTR_SIF_UINT(orig_interval, orig_interval, S_IRUGO | S_IWUSR,
2 * BATADV_JITTER, INT_MAX, NULL);
BATADV_ATTR_SIF_UINT(hop_penalty, hop_penalty, S_IRUGO | S_IWUSR, 0,
BATADV_TQ_MAX_VALUE, NULL);
-BATADV_ATTR_SIF_UINT(gw_sel_class, gw_sel_class, S_IRUGO | S_IWUSR, 1,
+BATADV_ATTR_SIF_UINT(gw_sel_class, gw.sel_class, S_IRUGO | S_IWUSR, 1,
BATADV_TQ_MAX_VALUE, batadv_post_gw_reselect);
static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth,
batadv_store_gw_bwidth);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index b70b6ae..32c6d0e 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -707,6 +707,8 @@ struct batadv_priv_debug_log {
* @list: list of available gateway nodes
* @list_lock: lock protecting gw_list & curr_gw
* @curr_gw: pointer to currently selected gateway node
+ * @mode: gateway operation: off, client or server (see batadv_gw_modes)
+ * @sel_class: gateway selection class (applies if gw_mode client)
* @bandwidth_down: advertised uplink download bandwidth (if gw_mode server)
* @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server)
* @reselect: bool indicating a gateway re-selection is in progress
@@ -715,6 +717,8 @@ struct batadv_priv_gw {
struct hlist_head list;
spinlock_t list_lock; /* protects gw_list & curr_gw */
struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */
+ atomic_t mode;
+ atomic_t sel_class;
atomic_t bandwidth_down;
atomic_t bandwidth_up;
atomic_t reselect;
@@ -865,8 +869,6 @@ struct batadv_priv_bat_v {
* enabled
* @multicast_mode: Enable or disable multicast optimizations on this node's
* sender/originating side
- * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes)
- * @gw_sel_class: gateway selection class (applies if gw_mode client)
* @orig_interval: OGM broadcast interval in milliseconds
* @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop
* @log_level: configured log level (see batadv_dbg_level)
@@ -922,8 +924,6 @@ struct batadv_priv {
#ifdef CONFIG_BATMAN_ADV_MCAST
atomic_t multicast_mode;
#endif
- atomic_t gw_mode;
- atomic_t gw_sel_class;
atomic_t orig_interval;
atomic_t hop_penalty;
#ifdef CONFIG_BATMAN_ADV_DEBUG
--
2.8.2