[PATCH tip/core/rcu 13/41] ethernet/intel/ixgbe: Replace synchronize_sched() with synchronize_rcu()

Paul E. McKenney
2018-11-11T19:45:47Z

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>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: <intel-wired-lan@lists.osuosl.org>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 113b38e0defb..e8095bdf46de 100644
--- 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);
--
2.17.1