linux-kernel - [PATCH tip/core/rcu 54/86] ixgbe,rcu: convert call_rcu(ring_free_rcu) to kfree

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Date:	Sun,  1 May 2011 06:21:34 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, eric.dumazet@...il.com, darren@...art.com,
	patches@...aro.org, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 54/86] ixgbe,rcu: convert call_rcu(ring_free_rcu) to kfree_rcu()

From: Lai Jiangshan <laijs@...fujitsu.com>

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

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
Acked-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 drivers/net/ixgbe/ixgbe_main.c |    7 +------
 1 files changed, 1 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 6f8adc7..e145f2c 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -5100,11 +5100,6 @@ err_set_interrupt:
 	return err;
 }
 
-static void ring_free_rcu(struct rcu_head *head)
-{
-	kfree(container_of(head, struct ixgbe_ring, rcu));
-}
-
 /**
  * ixgbe_clear_interrupt_scheme - Clear the current interrupt scheme settings
  * @adapter: board private structure to clear interrupt scheme on
@@ -5126,7 +5121,7 @@ void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter)
 		/* ixgbe_get_stats64() might access this ring, we must wait
 		 * a grace period before freeing it.
 		 */
-		call_rcu(&ring->rcu, ring_free_rcu);
+		kfree_rcu(ring, rcu);
 		adapter->rx_ring[i] = NULL;
 	}
 
-- 
1.7.3.2

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