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Date: Sat, 05 Mar 2011 15:18:11 +0100
From: Nicolas de Pesloüan
<nicolas.2p.debian@...il.com>
To: Jiri Pirko <jpirko@...hat.com>
CC: netdev@...r.kernel.org, davem@...emloft.net,
shemminger@...ux-foundation.org, kaber@...sh.net, fubar@...ibm.com,
eric.dumazet@...il.com, andy@...yhouse.net
Subject: Re: [patch net-next-2.6 5/8] bonding: get rid of IFF_SLAVE_INACTIVE
netdev->priv_flag
Le 05/03/2011 11:29, Jiri Pirko a écrit :
> Since bond-related code was moved from net/core/dev.c into bonding,
> IFF_SLAVE_INACTIVE is no longer needed. Replace is with flag "inactive"
> stored in slave structure
>
> Signed-off-by: Jiri Pirko<jpirko@...hat.com>
Reviewed-by: Nicolas de Pesloüan <nicolas.2p.debian@...e.fr>
> ---
> drivers/net/bonding/bond_main.c | 6 ++----
> drivers/net/bonding/bond_sysfs.c | 4 ++--
> drivers/net/bonding/bonding.h | 14 ++++++++++----
> include/linux/if.h | 19 +++++++++----------
> 4 files changed, 23 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
> index 62020a7..dbe182c 100644
> --- a/drivers/net/bonding/bond_main.c
> +++ b/drivers/net/bonding/bond_main.c
> @@ -1474,7 +1474,7 @@ static bool bond_should_deliver_exact_match(struct sk_buff *skb,
> struct slave *slave,
> struct bonding *bond)
> {
> - if (slave->dev->priv_flags& IFF_SLAVE_INACTIVE) {
> + if (bond_is_slave_inactive(slave)) {
> if (slave_do_arp_validate(bond, slave)&&
> skb->protocol == __cpu_to_be16(ETH_P_ARP))
> return false;
> @@ -2131,7 +2131,7 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
>
> dev_set_mtu(slave_dev, slave->original_mtu);
>
> - slave_dev->priv_flags&= ~(IFF_SLAVE_INACTIVE | IFF_BONDING);
> + slave_dev->priv_flags&= ~IFF_BONDING;
>
> kfree(slave);
>
> @@ -2242,8 +2242,6 @@ static int bond_release_all(struct net_device *bond_dev)
> dev_set_mac_address(slave_dev,&addr);
> }
>
> - slave_dev->priv_flags&= ~IFF_SLAVE_INACTIVE;
> -
> kfree(slave);
>
> /* re-acquire the lock before getting the next slave */
> diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
> index 344d23f..5161183 100644
> --- a/drivers/net/bonding/bond_sysfs.c
> +++ b/drivers/net/bonding/bond_sysfs.c
> @@ -1581,9 +1581,9 @@ static ssize_t bonding_store_slaves_active(struct device *d,
> bond_for_each_slave(bond, slave, i) {
> if (!bond_is_active_slave(slave)) {
> if (new_value)
> - slave->dev->priv_flags&= ~IFF_SLAVE_INACTIVE;
> + slave->inactive = 0;
> else
> - slave->dev->priv_flags |= IFF_SLAVE_INACTIVE;
> + slave->inactive = 1;
> }
> }
> out:
> diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
> index 8a3718b..8f78166 100644
> --- a/drivers/net/bonding/bonding.h
> +++ b/drivers/net/bonding/bonding.h
> @@ -190,8 +190,9 @@ struct slave {
> unsigned long last_arp_rx;
> s8 link; /* one of BOND_LINK_XXXX */
> s8 new_link;
> - u8 backup; /* indicates backup slave. Value corresponds with
> - BOND_STATE_ACTIVE and BOND_STATE_BACKUP */
> + u8 backup:1, /* indicates backup slave. Value corresponds with
> + BOND_STATE_ACTIVE and BOND_STATE_BACKUP */
> + inactive:1; /* indicates inactive slave */
> u32 original_mtu;
> u32 link_failure_count;
> u8 perm_hwaddr[ETH_ALEN];
> @@ -374,13 +375,18 @@ static inline void bond_set_slave_inactive_flags(struct slave *slave)
> if (!bond_is_lb(bond))
> bond_set_backup_slave(slave);
> if (!bond->params.all_slaves_active)
> - slave->dev->priv_flags |= IFF_SLAVE_INACTIVE;
> + slave->inactive = 1;
> }
>
> static inline void bond_set_slave_active_flags(struct slave *slave)
> {
> bond_set_active_slave(slave);
> - slave->dev->priv_flags&= ~IFF_SLAVE_INACTIVE;
> + slave->inactive = 0;
> +}
> +
> +static inline bool bond_is_slave_inactive(struct slave *slave)
> +{
> + return slave->inactive;
> }
>
> struct vlan_entry *bond_next_vlan(struct bonding *bond, struct vlan_entry *curr);
> diff --git a/include/linux/if.h b/include/linux/if.h
> index 2fdd47a..0da7991 100644
> --- a/include/linux/if.h
> +++ b/include/linux/if.h
> @@ -59,18 +59,17 @@
> /* Private (from user) interface flags (netdevice->priv_flags). */
> #define IFF_802_1Q_VLAN 0x1 /* 802.1Q VLAN device. */
> #define IFF_EBRIDGE 0x2 /* Ethernet bridging device. */
> -#define IFF_SLAVE_INACTIVE 0x4 /* bonding slave not the curr. active */
> -#define IFF_BONDING 0x8 /* bonding master or slave */
> -#define IFF_ISATAP 0x10 /* ISATAP interface (RFC4214) */
> -#define IFF_WAN_HDLC 0x20 /* WAN HDLC device */
> -#define IFF_XMIT_DST_RELEASE 0x40 /* dev_hard_start_xmit() is allowed to
> +#define IFF_BONDING 0x4 /* bonding master or slave */
> +#define IFF_ISATAP 0x8 /* ISATAP interface (RFC4214) */
> +#define IFF_WAN_HDLC 0x10 /* WAN HDLC device */
> +#define IFF_XMIT_DST_RELEASE 0x20 /* dev_hard_start_xmit() is allowed to
> * release skb->dst
> */
> -#define IFF_DONT_BRIDGE 0x80 /* disallow bridging this ether dev */
> -#define IFF_DISABLE_NETPOLL 0x100 /* disable netpoll at run-time */
> -#define IFF_MACVLAN_PORT 0x200 /* device used as macvlan port */
> -#define IFF_BRIDGE_PORT 0x400 /* device used as bridge port */
> -#define IFF_OVS_DATAPATH 0x800 /* device used as Open vSwitch
> +#define IFF_DONT_BRIDGE 0x40 /* disallow bridging this ether dev */
> +#define IFF_DISABLE_NETPOLL 0x80 /* disable netpoll at run-time */
> +#define IFF_MACVLAN_PORT 0x100 /* device used as macvlan port */
> +#define IFF_BRIDGE_PORT 0x200 /* device used as bridge port */
> +#define IFF_OVS_DATAPATH 0x400 /* device used as Open vSwitch
> * datapath port */
>
> #define IF_GET_IFACE 0x0001 /* for querying only */
--
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