[PATCH tip/core/rcu 5/8] ipv4: Add lockdep condition to fix for_each_entry()

From: Paul E. McKenney
Date: Thu Aug 01 2019 - 18:43:12 EST


From: "Joel Fernandes (Google)" <joel@xxxxxxxxxxxxxxxxx>

This commit applies the consolidated list_for_each_entry_rcu() support
for lockdep conditions.

Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
---
net/ipv4/fib_frontend.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index e8bc939b56dd..dde77f72e03e 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -124,7 +124,8 @@ struct fib_table *fib_get_table(struct net *net, u32 id)
h = id & (FIB_TABLE_HASHSZ - 1);

head = &net->ipv4.fib_table_hash[h];
- hlist_for_each_entry_rcu(tb, head, tb_hlist) {
+ hlist_for_each_entry_rcu(tb, head, tb_hlist,
+ lockdep_rtnl_is_held()) {
if (tb->tb_id == id)
return tb;
}
--
2.17.1