diff options
Diffstat (limited to 'drivers/net/bonding/bond_sysfs.c')
| -rw-r--r-- | drivers/net/bonding/bond_sysfs.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 2805135a7205..1e13bb170515 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -37,12 +37,12 @@ static ssize_t bonding_show_bonds(const struct class *cls, { const struct bond_net *bn = container_of_const(attr, struct bond_net, class_attr_bonding_masters); - int res = 0; struct bonding *bond; + int res = 0; - rtnl_lock(); + rcu_read_lock(); - list_for_each_entry(bond, &bn->dev_list, bond_list) { + list_for_each_entry_rcu(bond, &bn->dev_list, bond_list) { if (res > (PAGE_SIZE - IFNAMSIZ)) { /* not enough space for another interface name */ if ((PAGE_SIZE - res) > 10) @@ -55,7 +55,7 @@ static ssize_t bonding_show_bonds(const struct class *cls, if (res) buf[res-1] = '\n'; /* eat the leftover space */ - rtnl_unlock(); + rcu_read_unlock(); return res; } @@ -170,10 +170,9 @@ static ssize_t bonding_show_slaves(struct device *d, struct slave *slave; int res = 0; - if (!rtnl_trylock()) - return restart_syscall(); + rcu_read_lock(); - bond_for_each_slave(bond, slave, iter) { + bond_for_each_slave_rcu(bond, slave, iter) { if (res > (PAGE_SIZE - IFNAMSIZ)) { /* not enough space for another interface name */ if ((PAGE_SIZE - res) > 10) @@ -184,7 +183,7 @@ static ssize_t bonding_show_slaves(struct device *d, res += sysfs_emit_at(buf, res, "%s ", slave->dev->name); } - rtnl_unlock(); + rcu_read_unlock(); if (res) buf[res-1] = '\n'; /* eat the leftover space */ @@ -626,10 +625,9 @@ static ssize_t bonding_show_queue_id(struct device *d, struct slave *slave; int res = 0; - if (!rtnl_trylock()) - return restart_syscall(); + rcu_read_lock(); - bond_for_each_slave(bond, slave, iter) { + bond_for_each_slave_rcu(bond, slave, iter) { if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { /* not enough space for another interface_name:queue_id pair */ if ((PAGE_SIZE - res) > 10) @@ -638,12 +636,13 @@ static ssize_t bonding_show_queue_id(struct device *d, break; } res += sysfs_emit_at(buf, res, "%s:%d ", - slave->dev->name, slave->queue_id); + slave->dev->name, + READ_ONCE(slave->queue_id)); } if (res) buf[res-1] = '\n'; /* eat the leftover space */ - rtnl_unlock(); + rcu_read_unlock(); return res; } |