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    Subject[PATCH tip/core/rcu 50/86] net,rcu: convert call_rcu(ip_mc_list_reclaim) to kfree_rcu()
    Date
    From: Lai Jiangshan <laijs@cn.fujitsu.com>

    The rcu callback ip_mc_list_reclaim() just calls a kfree(),
    so we use kfree_rcu() instead of the call_rcu(ip_mc_list_reclaim).

    Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
    Acked-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
    ---
    net/ipv4/igmp.c | 8 +-------
    1 files changed, 1 insertions(+), 7 deletions(-)

    diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
    index 1fd3d9c..f22f30e 100644
    --- a/net/ipv4/igmp.c
    +++ b/net/ipv4/igmp.c
    @@ -149,17 +149,11 @@ static void ip_mc_clear_src(struct ip_mc_list *pmc);
    static int ip_mc_add_src(struct in_device *in_dev, __be32 *pmca, int sfmode,
    int sfcount, __be32 *psfsrc, int delta);

    -
    -static void ip_mc_list_reclaim(struct rcu_head *head)
    -{
    - kfree(container_of(head, struct ip_mc_list, rcu));
    -}
    -
    static void ip_ma_put(struct ip_mc_list *im)
    {
    if (atomic_dec_and_test(&im->refcnt)) {
    in_dev_put(im->interface);
    - call_rcu(&im->rcu, ip_mc_list_reclaim);
    + kfree_rcu(im, rcu);
    }
    }

    --
    1.7.3.2


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