ixgbe: Replace synchronize_sched() with synchronize_rcu()

Now that synchronize_rcu() waits for preempt-disable regions of code
as well as RCU read-side critical sections, synchronize_sched() can be
replaced by synchronize_rcu().  This commit therefore makes this change.

Signed-off-by: "Paul E. McKenney" <paulmck@linux.ibm.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index cfb83687c3d83d7d90ced6e72d51e7a199525760..49a4ea38eb070a7352eea1756ea5c34ba77b04e1 100644 (file)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -6077,9 +6077,9 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
        /* Disable Rx */
        ixgbe_disable_rx(adapter);
 
-       /* synchronize_sched() needed for pending XDP buffers to drain */
+       /* synchronize_rcu() needed for pending XDP buffers to drain */
        if (adapter->xdp_ring[0])
-               synchronize_sched();
+               synchronize_rcu();
 
        ixgbe_irq_disable(adapter);
 
@@ -10476,7 +10476,7 @@ void ixgbe_txrx_ring_disable(struct ixgbe_adapter *adapter, int ring)
        ixgbe_disable_rxr_hw(adapter, rx_ring);
 
        if (xdp_ring)
-               synchronize_sched();
+               synchronize_rcu();
 
        /* Rx/Tx/XDP Tx share the same napi context. */
        napi_disable(&rx_ring->q_vector->napi);