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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>
This commit is contained in:
Paul E. McKenney 2018-11-11 11:43:42 -08:00 committed by Jeff Kirsher
parent 0bcd952fee
commit 8166abb1ea
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
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@ -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);