RDS: use kfree_rcu in rds_ib_remove_ipaddr
synchronize_rcu() slowing down un-necessarily the socket shutdown
path. It is used just kfree() the ip addresses in rds_ib_remove_ipaddr()
which is perfect usecase for kfree_rcu();
So lets use that to gain some speedup.
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c
index 251d1ce..872f523 100644
--- a/net/rds/ib_rdma.c
+++ b/net/rds/ib_rdma.c
@@ -159,10 +159,8 @@
}
spin_unlock_irq(&rds_ibdev->spinlock);
- if (to_free) {
- synchronize_rcu();
- kfree(to_free);
- }
+ if (to_free)
+ kfree_rcu(to_free, rcu);
}
int rds_ib_update_ipaddr(struct rds_ib_device *rds_ibdev, __be32 ipaddr)