From: Maor Gottlieb maorg@mellanox.com
[ Upstream commit ed7d4f023b1a9b0578f20d66557c66452ab845ec ]
Rename slave_arr to usable_slaves, since we will have two arrays, one for the usable slaves and the other to all slaves.
Signed-off-by: Maor Gottlieb maorg@mellanox.com Reviewed-by: Jiri Pirko jiri@mellanox.com Reviewed-by: Jay Vosburgh jay.vosburgh@canonical.com Acked-by: David S. Miller davem@davemloft.net Signed-off-by: Saeed Mahameed saeedm@mellanox.com Stable-dep-of: f8a65ab2f3ff ("bonding: fix link recovery in mode 2 when updelay is nonzero") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/bonding/bond_alb.c | 4 ++-- drivers/net/bonding/bond_main.c | 40 ++++++++++++++++----------------- include/net/bonding.h | 2 +- 3 files changed, 23 insertions(+), 23 deletions(-)
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 8bee935c8f90..20114e1dde77 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -1360,7 +1360,7 @@ netdev_tx_t bond_tlb_xmit(struct sk_buff *skb, struct net_device *bond_dev) struct bond_up_slave *slaves; unsigned int count;
- slaves = rcu_dereference(bond->slave_arr); + slaves = rcu_dereference(bond->usable_slaves); count = slaves ? READ_ONCE(slaves->count) : 0; if (likely(count)) tx_slave = slaves->arr[hash_index % @@ -1494,7 +1494,7 @@ netdev_tx_t bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev) struct bond_up_slave *slaves; unsigned int count;
- slaves = rcu_dereference(bond->slave_arr); + slaves = rcu_dereference(bond->usable_slaves); count = slaves ? READ_ONCE(slaves->count) : 0; if (likely(count)) tx_slave = slaves->arr[bond_xmit_hash(bond, skb) % diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 0e797730bab3..dc351832b108 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4073,9 +4073,9 @@ static void bond_skip_slave(struct bond_up_slave *slaves, */ int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave) { + struct bond_up_slave *usable_slaves, *old_usable_slaves; struct slave *slave; struct list_head *iter; - struct bond_up_slave *new_arr, *old_arr; int agg_id = 0; int ret = 0;
@@ -4083,11 +4083,10 @@ int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave) WARN_ON(lockdep_is_held(&bond->mode_lock)); #endif
- new_arr = kzalloc(offsetof(struct bond_up_slave, arr[bond->slave_cnt]), - GFP_KERNEL); - if (!new_arr) { + usable_slaves = kzalloc(struct_size(usable_slaves, arr, + bond->slave_cnt), GFP_KERNEL); + if (!usable_slaves) { ret = -ENOMEM; - pr_err("Failed to build slave-array.\n"); goto out; } if (BOND_MODE(bond) == BOND_MODE_8023AD) { @@ -4095,14 +4094,14 @@ int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave)
if (bond_3ad_get_active_agg_info(bond, &ad_info)) { pr_debug("bond_3ad_get_active_agg_info failed\n"); - kfree_rcu(new_arr, rcu); + kfree_rcu(usable_slaves, rcu); /* No active aggragator means it's not safe to use * the previous array. */ - old_arr = rtnl_dereference(bond->slave_arr); - if (old_arr) { - RCU_INIT_POINTER(bond->slave_arr, NULL); - kfree_rcu(old_arr, rcu); + old_usable_slaves = rtnl_dereference(bond->usable_slaves); + if (old_usable_slaves) { + RCU_INIT_POINTER(bond->usable_slaves, NULL); + kfree_rcu(old_usable_slaves, rcu); } goto out; } @@ -4122,18 +4121,19 @@ int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave) continue;
slave_dbg(bond->dev, slave->dev, "Adding slave to tx hash array[%d]\n", - new_arr->count); + usable_slaves->count);
- new_arr->arr[new_arr->count++] = slave; + usable_slaves->arr[usable_slaves->count++] = slave; }
- old_arr = rtnl_dereference(bond->slave_arr); - rcu_assign_pointer(bond->slave_arr, new_arr); - if (old_arr) - kfree_rcu(old_arr, rcu); + old_usable_slaves = rtnl_dereference(bond->usable_slaves); + rcu_assign_pointer(bond->usable_slaves, usable_slaves); + if (old_usable_slaves) + kfree_rcu(old_usable_slaves, rcu); out: if (ret != 0 && skipslave) - bond_skip_slave(rtnl_dereference(bond->slave_arr), skipslave); + bond_skip_slave(rtnl_dereference(bond->usable_slaves), + skipslave);
return ret; } @@ -4150,7 +4150,7 @@ static netdev_tx_t bond_3ad_xor_xmit(struct sk_buff *skb, struct bond_up_slave *slaves; unsigned int count;
- slaves = rcu_dereference(bond->slave_arr); + slaves = rcu_dereference(bond->usable_slaves); count = slaves ? READ_ONCE(slaves->count) : 0; if (likely(count)) { slave = slaves->arr[bond_xmit_hash(bond, skb) % count]; @@ -4457,9 +4457,9 @@ static void bond_uninit(struct net_device *bond_dev) __bond_release_one(bond_dev, slave->dev, true, true); netdev_info(bond_dev, "Released all slaves\n");
- arr = rtnl_dereference(bond->slave_arr); + arr = rtnl_dereference(bond->usable_slaves); if (arr) { - RCU_INIT_POINTER(bond->slave_arr, NULL); + RCU_INIT_POINTER(bond->usable_slaves, NULL); kfree_rcu(arr, rcu); }
diff --git a/include/net/bonding.h b/include/net/bonding.h index 1bee8fdff7db..69ceb5b4a8d6 100644 --- a/include/net/bonding.h +++ b/include/net/bonding.h @@ -205,7 +205,7 @@ struct bonding { struct slave __rcu *curr_active_slave; struct slave __rcu *current_arp_slave; struct slave __rcu *primary_slave; - struct bond_up_slave __rcu *slave_arr; /* Array of usable slaves */ + struct bond_up_slave __rcu *usable_slaves; /* Array of usable slaves */ bool force_primary; s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ int (*recv_probe)(const struct sk_buff *, struct bonding *,