[PATCH 8/9] mac80211: Don't take the mesh path resize lock when deleting an mpath

[Thomas Pedersen <thomas@cozybit.com>]

From: Javier Cardona <javier@cozybit.com>

The mesh path resize lock is only needed to protect addition or removal
of buckets on the hash table, not nodes on those buckets.

Signed-off-by: Javier Cardona <javier@cozybit.com>
---
 net/mac80211/mesh_pathtbl.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 9d9e1ac..4bfbe31 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -905,8 +905,8 @@ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata)
 	int hash_idx;
 	int err = 0;
 
-	read_lock_bh(&pathtbl_resize_lock);
-	tbl = resize_dereference_mesh_paths();
+	rcu_read_lock();
+	tbl = rcu_dereference(mesh_paths);
 	hash_idx = mesh_table_hash(addr, sdata, tbl);
 	bucket = &tbl->hash_buckets[hash_idx];
 
@@ -924,7 +924,7 @@ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata)
 enddel:
 	mesh_paths_generation++;
 	spin_unlock_bh(&tbl->hashwlock[hash_idx]);
-	read_unlock_bh(&pathtbl_resize_lock);
+	rcu_read_unlock();
 	return err;
 }
 
-- 
1.7.4.1