mac80211: allow station add/remove to sleep

[safe/jmp/linux-2.6] / net / mac80211 / mesh_plink.c

diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 7985e51..bc4e20e 100644 (file)
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -102,7 +102,7 @@ static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata,
        if (local->num_sta >= MESH_MAX_PLINKS)
                return NULL;
 
-       sta = sta_info_alloc(sdata, hw_addr, GFP_ATOMIC);
+       sta = sta_info_alloc(sdata, hw_addr, GFP_KERNEL);
        if (!sta)
                return NULL;
 
@@ -236,12 +236,12 @@ void mesh_neighbour_update(u8 *hw_addr, u32 rates, struct ieee80211_sub_if_data
 
        sta = sta_info_get(sdata, hw_addr);
        if (!sta) {
+               rcu_read_unlock();
+
                sta = mesh_plink_alloc(sdata, hw_addr, rates);
-               if (!sta) {
-                       rcu_read_unlock();
+               if (!sta)
                        return;
-               }
-               if (sta_info_insert(sta)) {
+               if (sta_info_insert_rcu(sta)) {
                        rcu_read_unlock();
                        return;
                }
@@ -485,9 +485,11 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
        } else if (!sta) {
                /* ftype == PLINK_OPEN */
                u32 rates;
+
+               rcu_read_unlock();
+
                if (!mesh_plink_free_count(sdata)) {
                        mpl_dbg("Mesh plink error: no more free plinks\n");
-                       rcu_read_unlock();
                        return;
                }
 
@@ -495,10 +497,9 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
                sta = mesh_plink_alloc(sdata, mgmt->sa, rates);
                if (!sta) {
                        mpl_dbg("Mesh plink error: plink table full\n");
-                       rcu_read_unlock();
                        return;
                }
-               if (sta_info_insert(sta)) {
+               if (sta_info_insert_rcu(sta)) {
                        rcu_read_unlock();
                        return;
                }