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Date: Mon, 7 Jun 2010 15:27:39 +0200 From: Jiri Pirko <jpirko@...hat.com> To: netdev@...r.kernel.org Cc: davem@...emloft.net, remi.denis-courmont@...ia.com Subject: [PATCH net-next-2.6] phonet: use call_rcu for phonet device free Use call_rcu rather than synchronize_rcu. Signed-off-by: Jiri Pirko <jpirko@...hat.com> --- include/net/phonet/pn_dev.h | 1 + net/phonet/pn_dev.c | 15 +++++++++++---- 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/include/net/phonet/pn_dev.h b/include/net/phonet/pn_dev.h index d7b989c..2d16783 100644 --- a/include/net/phonet/pn_dev.h +++ b/include/net/phonet/pn_dev.h @@ -34,6 +34,7 @@ struct phonet_device { struct list_head list; struct net_device *netdev; DECLARE_BITMAP(addrs, 64); + struct rcu_head rcu; }; int phonet_device_init(void); diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c index c33da65..b18e48f 100644 --- a/net/phonet/pn_dev.c +++ b/net/phonet/pn_dev.c @@ -162,6 +162,14 @@ int phonet_address_add(struct net_device *dev, u8 addr) return err; } +static void phonet_device_rcu_free(struct rcu_head *head) +{ + struct phonet_device *pnd; + + pnd = container_of(head, struct phonet_device, rcu); + kfree(pnd); +} + int phonet_address_del(struct net_device *dev, u8 addr) { struct phonet_device_list *pndevs = phonet_device_list(dev_net(dev)); @@ -179,10 +187,9 @@ int phonet_address_del(struct net_device *dev, u8 addr) pnd = NULL; mutex_unlock(&pndevs->lock); - if (pnd) { - synchronize_rcu(); - kfree(pnd); - } + if (pnd) + call_rcu(&pnd->rcu, phonet_device_rcu_free); + return err; } -- 1.7.0.1 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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