Messages in this thread Patch in this message | | | From | "Uladzislau Rezki (Sony)" <> | Subject | [PATCH 7/9] net/core: Switch to kvfree_rcu() API | Date | Wed, 24 Nov 2021 12:03:06 +0100 |
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Instead of invoking a synchronize_rcu() to free a pointer after a grace period we can directly make use of new API that does the same but in more efficient way.
CC: "David S. Miller" <davem@davemloft.net> Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com> --- net/core/sysctl_net_core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index 5f88526ad61c..8b4ab9a6e2d7 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -141,8 +141,7 @@ static int flow_limit_cpu_sysctl(struct ctl_table *table, int write, lockdep_is_held(&flow_limit_update_mutex)); if (cur && !cpumask_test_cpu(i, mask)) { RCU_INIT_POINTER(sd->flow_limit, NULL); - synchronize_rcu(); - kfree(cur); + kvfree_rcu(cur); } else if (!cur && cpumask_test_cpu(i, mask)) { cur = kzalloc_node(len, GFP_KERNEL, cpu_to_node(i)); -- 2.30.2
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