Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 22 insertions, 26 deletions

diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index edf167e3b8f..49aaefd9963 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -336,7 +336,7 @@ static void mesh_path_move_to_queue(struct mesh_path *gate_mpath,
 }
 
 
-static struct mesh_path *path_lookup(struct mesh_table *tbl, u8 *dst,
+static struct mesh_path *mpath_lookup(struct mesh_table *tbl, u8 *dst,
 					  struct ieee80211_sub_if_data *sdata)
 {
 	struct mesh_path *mpath;
@@ -348,7 +348,7 @@ static struct mesh_path *path_lookup(struct mesh_table *tbl, u8 *dst,
 	hlist_for_each_entry_rcu(node, n, bucket, list) {
 		mpath = node->mpath;
 		if (mpath->sdata == sdata &&
-				memcmp(dst, mpath->dst, ETH_ALEN) == 0) {
+				compare_ether_addr(dst, mpath->dst) == 0) {
 			if (MPATH_EXPIRED(mpath)) {
 				spin_lock_bh(&mpath->state_lock);
 				mpath->flags &= ~MESH_PATH_ACTIVE;
@@ -371,12 +371,12 @@ static struct mesh_path *path_lookup(struct mesh_table *tbl, u8 *dst,
  */
 struct mesh_path *mesh_path_lookup(u8 *dst, struct ieee80211_sub_if_data *sdata)
 {
-	return path_lookup(rcu_dereference(mesh_paths), dst, sdata);
+	return mpath_lookup(rcu_dereference(mesh_paths), dst, sdata);
 }
 
 struct mesh_path *mpp_path_lookup(u8 *dst, struct ieee80211_sub_if_data *sdata)
 {
-	return path_lookup(rcu_dereference(mpp_paths), dst, sdata);
+	return mpath_lookup(rcu_dereference(mpp_paths), dst, sdata);
 }
 
 
@@ -413,12 +413,6 @@ struct mesh_path *mesh_path_lookup_by_idx(int idx, struct ieee80211_sub_if_data
 	return NULL;
 }
 
-static void mesh_gate_node_reclaim(struct rcu_head *rp)
-{
-	struct mpath_node *node = container_of(rp, struct mpath_node, rcu);
-	kfree(node);
-}
-
 /**
  * mesh_path_add_gate - add the given mpath to a mesh gate to our path table
  * @mpath: gate path to add to table
@@ -479,7 +473,7 @@ static int mesh_gate_del(struct mesh_table *tbl, struct mesh_path *mpath)
 		if (gate->mpath == mpath) {
 			spin_lock_bh(&tbl->gates_lock);
 			hlist_del_rcu(&gate->list);
-			call_rcu(&gate->rcu, mesh_gate_node_reclaim);
+			kfree_rcu(gate, rcu);
 			spin_unlock_bh(&tbl->gates_lock);
 			mpath->sdata->u.mesh.num_gates--;
 			mpath->is_gate = false;
@@ -523,7 +517,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
 	int err = 0;
 	u32 hash_idx;
 
-	if (memcmp(dst, sdata->vif.addr, ETH_ALEN) == 0)
+	if (compare_ether_addr(dst, sdata->vif.addr) == 0)
 		/* never add ourselves as neighbours */
 		return -ENOTSUPP;
 
@@ -559,12 +553,13 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
 	hash_idx = mesh_table_hash(dst, sdata, tbl);
 	bucket = &tbl->hash_buckets[hash_idx];
 
-	spin_lock_bh(&tbl->hashwlock[hash_idx]);
+	spin_lock(&tbl->hashwlock[hash_idx]);
 
 	err = -EEXIST;
 	hlist_for_each_entry(node, n, bucket, list) {
 		mpath = node->mpath;
-		if (mpath->sdata == sdata && memcmp(dst, mpath->dst, ETH_ALEN) == 0)
+		if (mpath->sdata == sdata &&
+		    compare_ether_addr(dst, mpath->dst) == 0)
 			goto err_exists;
 	}
 
@@ -575,7 +570,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
 
 	mesh_paths_generation++;
 
-	spin_unlock_bh(&tbl->hashwlock[hash_idx]);
+	spin_unlock(&tbl->hashwlock[hash_idx]);
 	read_unlock_bh(&pathtbl_resize_lock);
 	if (grow) {
 		set_bit(MESH_WORK_GROW_MPATH_TABLE,  &ifmsh->wrkq_flags);
@@ -584,7 +579,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
 	return 0;
 
 err_exists:
-	spin_unlock_bh(&tbl->hashwlock[hash_idx]);
+	spin_unlock(&tbl->hashwlock[hash_idx]);
 	read_unlock_bh(&pathtbl_resize_lock);
 	kfree(new_node);
 err_node_alloc:
@@ -655,7 +650,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata)
 	int err = 0;
 	u32 hash_idx;
 
-	if (memcmp(dst, sdata->vif.addr, ETH_ALEN) == 0)
+	if (compare_ether_addr(dst, sdata->vif.addr) == 0)
 		/* never add ourselves as neighbours */
 		return -ENOTSUPP;
 
@@ -687,12 +682,13 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata)
 	hash_idx = mesh_table_hash(dst, sdata, tbl);
 	bucket = &tbl->hash_buckets[hash_idx];
 
-	spin_lock_bh(&tbl->hashwlock[hash_idx]);
+	spin_lock(&tbl->hashwlock[hash_idx]);
 
 	err = -EEXIST;
 	hlist_for_each_entry(node, n, bucket, list) {
 		mpath = node->mpath;
-		if (mpath->sdata == sdata && memcmp(dst, mpath->dst, ETH_ALEN) == 0)
+		if (mpath->sdata == sdata &&
+		    compare_ether_addr(dst, mpath->dst) == 0)
 			goto err_exists;
 	}
 
@@ -701,7 +697,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata)
 	    tbl->mean_chain_len * (tbl->hash_mask + 1))
 		grow = 1;
 
-	spin_unlock_bh(&tbl->hashwlock[hash_idx]);
+	spin_unlock(&tbl->hashwlock[hash_idx]);
 	read_unlock_bh(&pathtbl_resize_lock);
 	if (grow) {
 		set_bit(MESH_WORK_GROW_MPP_TABLE,  &ifmsh->wrkq_flags);
@@ -710,7 +706,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata)
 	return 0;
 
 err_exists:
-	spin_unlock_bh(&tbl->hashwlock[hash_idx]);
+	spin_unlock(&tbl->hashwlock[hash_idx]);
 	read_unlock_bh(&pathtbl_resize_lock);
 	kfree(new_node);
 err_node_alloc:
@@ -809,9 +805,9 @@ void mesh_path_flush_by_nexthop(struct sta_info *sta)
 	for_each_mesh_entry(tbl, p, node, i) {
 		mpath = node->mpath;
 		if (rcu_dereference(mpath->next_hop) == sta) {
-			spin_lock_bh(&tbl->hashwlock[i]);
+			spin_lock(&tbl->hashwlock[i]);
 			__mesh_path_del(tbl, node);
-			spin_unlock_bh(&tbl->hashwlock[i]);
+			spin_unlock(&tbl->hashwlock[i]);
 		}
 	}
 	read_unlock_bh(&pathtbl_resize_lock);
@@ -882,11 +878,11 @@ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata)
 	hash_idx = mesh_table_hash(addr, sdata, tbl);
 	bucket = &tbl->hash_buckets[hash_idx];
 
-	spin_lock_bh(&tbl->hashwlock[hash_idx]);
+	spin_lock(&tbl->hashwlock[hash_idx]);
 	hlist_for_each_entry(node, n, bucket, list) {
 		mpath = node->mpath;
 		if (mpath->sdata == sdata &&
-		    memcmp(addr, mpath->dst, ETH_ALEN) == 0) {
+		    compare_ether_addr(addr, mpath->dst) == 0) {
 			__mesh_path_del(tbl, node);
 			goto enddel;
 		}
@@ -895,7 +891,7 @@ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata)
 	err = -ENXIO;
 enddel:
 	mesh_paths_generation++;
-	spin_unlock_bh(&tbl->hashwlock[hash_idx]);
+	spin_unlock(&tbl->hashwlock[hash_idx]);
 	read_unlock_bh(&pathtbl_resize_lock);
 	return err;
 }