From: baker.zhang <baker.kernel@gmail.com>
Date: Sun, 13 Oct 2013 11:50:09 +0000 (+0800)
Subject: fib_trie: remove duplicated rcu lock
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=77dfca7e45518ea87a4e90f9142b87687f55f708;p=linux-beck.git

fib_trie: remove duplicated rcu lock

fib_table_lookup has included the rcu lock protection.

Signed-off-by: baker.zhang <baker.kernel@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index b3f627ac4ed8..d846304b7b89 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -933,7 +933,6 @@ static void nl_fib_lookup(struct fib_result_nl *frn, struct fib_table *tb)
 		local_bh_disable();
 
 		frn->tb_id = tb->tb_id;
-		rcu_read_lock();
 		frn->err = fib_table_lookup(tb, &fl4, &res, FIB_LOOKUP_NOREF);
 
 		if (!frn->err) {
@@ -942,7 +941,6 @@ static void nl_fib_lookup(struct fib_result_nl *frn, struct fib_table *tb)
 			frn->type = res.type;
 			frn->scope = res.scope;
 		}
-		rcu_read_unlock();
 		local_bh_enable();
 	}
 }