diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2023-03-21 21:32:21 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-03-21 21:32:21 -0700 |
| commit | 85496c9b3bf8dbe15e2433d3a0197954d323cadc (patch) | |
| tree | d2312716d8e90eff12270a472646f82aab0e6f42 /net/ipv4/route.c | |
| parent | f6f4e739b16487c89d29ef8b425d019bed64f541 (diff) | |
| parent | fe602c87df1b6927562f4ee61edd851bb9578a49 (diff) | |
Merge branch 'net-remove-some-rcu_bh-cruft'
Eric Dumazet says:
====================
net: remove some rcu_bh cruft
There is no point using rcu_bh variant hoping to free objects faster,
especially hen using call_rcu() or kfree_rcu().
Disabling/enabling BH has a non-zero cost, and adds distracting
hot spots in kernel profiles eg. in ip6_xmit().
====================
Link: https://lore.kernel.org/r/20230321040115.787497-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/route.c')
| -rw-r--r-- | net/ipv4/route.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 232009d216c4..6a0a0bb452e9 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -408,7 +408,7 @@ static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst, struct net_device *dev = dst->dev; struct neighbour *n; - rcu_read_lock_bh(); + rcu_read_lock(); if (likely(rt->rt_gw_family == AF_INET)) { n = ip_neigh_gw4(dev, rt->rt_gw4); @@ -424,7 +424,7 @@ static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst, if (!IS_ERR(n) && !refcount_inc_not_zero(&n->refcnt)) n = NULL; - rcu_read_unlock_bh(); + rcu_read_unlock(); return n; } |