maple_tree: remove extra smp_wmb() from mas_dead_leaves()

The call to mte_set_dead_node() before the smp_wmb() already calls
smp_wmb() so this is not needed.

Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index ee83f1b0a4ac7465bb1241bd9445656214ca3557..564fafc4142401738f44710448f4c6117375d846 100644 (file)
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -5518,7 +5518,6 @@ unsigned char mas_dead_leaves(struct ma_state *mas, void __rcu **slots,
                        break;
 
                mte_set_node_dead(entry);
-               smp_wmb(); /* Needed for RCU */
                node->type = type;
                rcu_assign_pointer(slots[offset], node);
        }