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authorNils Carlson <nils.carlson@ericsson.com>2011-03-03 22:09:12 +0000
committerDavid S. Miller <davem@davemloft.net>2011-03-07 16:02:18 -0800
commit9ac3524a948cab48137a8b40a4fa8ae1092b0a24 (patch)
treeab03bb4ace08ee4803b01d75e1f85d7e4de7b308 /drivers/net
parent16d79d7dc98e56d4700054b9b785a92102d8998c (diff)
downloadop-kernel-dev-9ac3524a948cab48137a8b40a4fa8ae1092b0a24.zip
op-kernel-dev-9ac3524a948cab48137a8b40a4fa8ae1092b0a24.tar.gz
bonding 802.3ad: Rename rx_machine_lock to state_machine_lock
Rename the rx_machine_lock to state_machine_lock as this makes more sense in light of it now protecting all the state machines against concurrency. Signed-off-by: Nils Carlson <nils.carlson@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/bonding/bond_3ad.c24
-rw-r--r--drivers/net/bonding/bond_3ad.h3
2 files changed, 14 insertions, 13 deletions
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index de30c8d..a5d5d0b 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -281,23 +281,23 @@ static inline int __check_agg_selection_timer(struct port *port)
}
/**
- * __get_rx_machine_lock - lock the port's RX machine
+ * __get_state_machine_lock - lock the port's state machines
* @port: the port we're looking at
*
*/
-static inline void __get_rx_machine_lock(struct port *port)
+static inline void __get_state_machine_lock(struct port *port)
{
- spin_lock_bh(&(SLAVE_AD_INFO(port->slave).rx_machine_lock));
+ spin_lock_bh(&(SLAVE_AD_INFO(port->slave).state_machine_lock));
}
/**
- * __release_rx_machine_lock - unlock the port's RX machine
+ * __release_state_machine_lock - unlock the port's state machines
* @port: the port we're looking at
*
*/
-static inline void __release_rx_machine_lock(struct port *port)
+static inline void __release_state_machine_lock(struct port *port)
{
- spin_unlock_bh(&(SLAVE_AD_INFO(port->slave).rx_machine_lock));
+ spin_unlock_bh(&(SLAVE_AD_INFO(port->slave).state_machine_lock));
}
/**
@@ -388,14 +388,14 @@ static u8 __get_duplex(struct port *port)
}
/**
- * __initialize_port_locks - initialize a port's RX machine spinlock
+ * __initialize_port_locks - initialize a port's STATE machine spinlock
* @port: the port we're looking at
*
*/
static inline void __initialize_port_locks(struct port *port)
{
// make sure it isn't called twice
- spin_lock_init(&(SLAVE_AD_INFO(port->slave).rx_machine_lock));
+ spin_lock_init(&(SLAVE_AD_INFO(port->slave).state_machine_lock));
}
//conversions
@@ -2154,7 +2154,7 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
* by all (e.g., port->sm_vars). ad_rx_machine may run
* concurrently due to incoming LACPDU.
*/
- __get_rx_machine_lock(port);
+ __get_state_machine_lock(port);
ad_rx_machine(NULL, port);
ad_periodic_machine(port);
@@ -2166,7 +2166,7 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
if (port->sm_vars & AD_PORT_BEGIN)
port->sm_vars &= ~AD_PORT_BEGIN;
- __release_rx_machine_lock(port);
+ __release_state_machine_lock(port);
}
re_arm:
@@ -2204,9 +2204,9 @@ static void bond_3ad_rx_indication(struct lacpdu *lacpdu, struct slave *slave, u
pr_debug("Received LACPDU on port %d\n",
port->actor_port_number);
/* Protect against concurrent state machines */
- __get_rx_machine_lock(port);
+ __get_state_machine_lock(port);
ad_rx_machine(lacpdu, port);
- __release_rx_machine_lock(port);
+ __release_state_machine_lock(port);
break;
case AD_TYPE_MARKER:
diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h
index 2c46a154..b28baff 100644
--- a/drivers/net/bonding/bond_3ad.h
+++ b/drivers/net/bonding/bond_3ad.h
@@ -264,7 +264,8 @@ struct ad_bond_info {
struct ad_slave_info {
struct aggregator aggregator; // 802.3ad aggregator structure
struct port port; // 802.3ad port structure
- spinlock_t rx_machine_lock; // To avoid race condition between callback and receive interrupt
+ spinlock_t state_machine_lock; /* mutex state machines vs.
+ incoming LACPDU */
u16 id;
};
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