-
/*
* Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
*
#include "bonding.h"
-#define to_dev(obj) container_of(obj,struct device,kobj)
+#define to_dev(obj) container_of(obj, struct device, kobj)
#define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd))))
-/*---------------------------- Declarations -------------------------------*/
-
-static int expected_refcount = -1;
-/*--------------------------- Data Structures -----------------------------*/
-
-/* Bonding sysfs lock. Why can't we just use the subsystem lock?
- * Because kobject_register tries to acquire the subsystem lock. If
- * we already hold the lock (which we would if the user was creating
- * a new bond through the sysfs interface), we deadlock.
- * This lock is only needed when deleting a bond - we need to make sure
- * that we don't collide with an ongoing ioctl.
- */
-
-struct rw_semaphore bonding_rwsem;
-
-
-
-
-/*------------------------------ Functions --------------------------------*/
-
/*
* "show" function for the bond_masters attribute.
* The class parameter is ignored.
int res = 0;
struct bonding *bond;
- down_read(&(bonding_rwsem));
+ rtnl_lock();
list_for_each_entry(bond, &bond_dev_list, bond_list) {
if (res > (PAGE_SIZE - IFNAMSIZ)) {
}
if (res)
buf[res-1] = '\n'; /* eat the leftover space */
- up_read(&(bonding_rwsem));
+
+ rtnl_unlock();
return res;
}
*
*/
-static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t count)
+static ssize_t bonding_store_bonds(struct class *cls,
+ const char *buffer, size_t count)
{
char command[IFNAMSIZ + 1] = {0, };
char *ifname;
goto err_no_cmd;
if (command[0] == '+') {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s is being created...\n", ifname);
- rv = bond_create(ifname, &bonding_defaults);
+ rv = bond_create(ifname);
if (rv) {
- printk(KERN_INFO DRV_NAME ": Bond creation failed.\n");
+ pr_info(DRV_NAME ": Bond creation failed.\n");
res = rv;
}
goto out;
if (command[0] == '-') {
rtnl_lock();
- down_write(&bonding_rwsem);
list_for_each_entry(bond, &bond_dev_list, bond_list)
if (strnicmp(bond->dev->name, ifname, IFNAMSIZ) == 0) {
- /* check the ref count on the bond's kobject.
- * If it's > expected, then there's a file open,
- * and we have to fail.
- */
- if (atomic_read(&bond->dev->dev.kobj.kref.refcount)
- > expected_refcount){
- printk(KERN_INFO DRV_NAME
- ": Unable remove bond %s due to open references.\n",
- ifname);
- res = -EPERM;
- goto out_unlock;
- }
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s is being deleted...\n",
bond->dev->name);
- bond_destroy(bond);
+ unregister_netdevice(bond->dev);
goto out_unlock;
}
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": unable to delete non-existent bond %s\n", ifname);
res = -ENODEV;
goto out_unlock;
}
err_no_cmd:
- printk(KERN_ERR DRV_NAME
- ": no command found in bonding_masters. Use +ifname or -ifname.\n");
+ pr_err(DRV_NAME ": no command found in bonding_masters."
+ " Use +ifname or -ifname.\n");
return -EPERM;
out_unlock:
- up_write(&bonding_rwsem);
rtnl_unlock();
/* Always return either count or an error. If you return 0, you'll
static CLASS_ATTR(bonding_masters, S_IWUSR | S_IRUGO,
bonding_show_bonds, bonding_store_bonds);
-int bond_create_slave_symlinks(struct net_device *master, struct net_device *slave)
+int bond_create_slave_symlinks(struct net_device *master,
+ struct net_device *slave)
{
char linkname[IFNAMSIZ+7];
int ret = 0;
if (ret)
return ret;
/* next, create a link from the master to the slave */
- sprintf(linkname,"slave_%s",slave->name);
+ sprintf(linkname, "slave_%s", slave->name);
ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj),
linkname);
return ret;
}
-void bond_destroy_slave_symlinks(struct net_device *master, struct net_device *slave)
+void bond_destroy_slave_symlinks(struct net_device *master,
+ struct net_device *slave)
{
char linkname[IFNAMSIZ+7];
sysfs_remove_link(&(slave->dev.kobj), "master");
- sprintf(linkname,"slave_%s",slave->name);
+ sprintf(linkname, "slave_%s", slave->name);
sysfs_remove_link(&(master->dev.kobj), linkname);
}
/* Note: We can't hold bond->lock here, as bond_create grabs it. */
- rtnl_lock();
- down_write(&(bonding_rwsem));
+ if (!rtnl_trylock())
+ return restart_syscall();
sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
ifname = command + 1;
read_lock(&bond->lock);
bond_for_each_slave(bond, slave, i)
if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Interface %s is already enslaved!\n",
bond->dev->name, ifname);
ret = -EPERM;
}
read_unlock(&bond->lock);
- printk(KERN_INFO DRV_NAME ": %s: Adding slave %s.\n",
+ pr_info(DRV_NAME ": %s: Adding slave %s.\n",
bond->dev->name, ifname);
dev = dev_get_by_name(&init_net, ifname);
if (!dev) {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: Interface %s does not exist!\n",
bond->dev->name, ifname);
ret = -EPERM;
goto out;
- }
- else
+ } else
dev_put(dev);
if (dev->flags & IFF_UP) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Error: Unable to enslave %s "
"because it is already up.\n",
bond->dev->name, dev->name);
bond_for_each_slave(bond, slave, i)
if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0)
slave->original_mtu = original_mtu;
- if (res) {
+ if (res)
ret = res;
- }
+
goto out;
}
break;
}
if (dev) {
- printk(KERN_INFO DRV_NAME ": %s: Removing slave %s\n",
+ pr_info(DRV_NAME ": %s: Removing slave %s\n",
bond->dev->name, dev->name);
res = bond_release(bond->dev, dev);
if (res) {
}
/* set the slave MTU to the default */
dev_set_mtu(dev, original_mtu);
- }
- else {
- printk(KERN_ERR DRV_NAME ": unable to remove non-existent slave %s for bond %s.\n",
+ } else {
+ pr_err(DRV_NAME ": unable to remove non-existent"
+ " slave %s for bond %s.\n",
ifname, bond->dev->name);
ret = -ENODEV;
}
}
err_no_cmd:
- printk(KERN_ERR DRV_NAME ": no command found in slaves file for bond %s. Use +ifname or -ifname.\n", bond->dev->name);
+ pr_err(DRV_NAME ": no command found in slaves file for bond %s. Use +ifname or -ifname.\n", bond->dev->name);
ret = -EPERM;
out:
- up_write(&(bonding_rwsem));
rtnl_unlock();
return ret;
}
-static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, bonding_store_slaves);
+static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves,
+ bonding_store_slaves);
/*
* Show and set the bonding mode. The bond interface must be down to
struct bonding *bond = to_bond(d);
if (bond->dev->flags & IFF_UP) {
- printk(KERN_ERR DRV_NAME
- ": unable to update mode of %s because interface is up.\n",
- bond->dev->name);
+ pr_err(DRV_NAME ": unable to update mode of %s"
+ " because interface is up.\n", bond->dev->name);
ret = -EPERM;
goto out;
}
new_value = bond_parse_parm(buf, bond_mode_tbl);
if (new_value < 0) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Ignoring invalid mode value %.*s.\n",
bond->dev->name,
(int)strlen(buf) - 1, buf);
bond->params.mode = new_value;
bond_set_mode_ops(bond, bond->params.mode);
- printk(KERN_INFO DRV_NAME ": %s: setting mode to %s (%d).\n",
- bond->dev->name, bond_mode_tbl[new_value].modename, new_value);
+ pr_info(DRV_NAME ": %s: setting mode to %s (%d).\n",
+ bond->dev->name, bond_mode_tbl[new_value].modename,
+ new_value);
}
out:
return ret;
}
-static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, bonding_show_mode, bonding_store_mode);
+static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
+ bonding_show_mode, bonding_store_mode);
/*
- * Show and set the bonding transmit hash method. The bond interface must be down to
- * change the xmit hash policy.
+ * Show and set the bonding transmit hash method.
+ * The bond interface must be down to change the xmit hash policy.
*/
static ssize_t bonding_show_xmit_hash(struct device *d,
struct device_attribute *attr,
struct bonding *bond = to_bond(d);
if (bond->dev->flags & IFF_UP) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
"%s: Interface is up. Unable to update xmit policy.\n",
bond->dev->name);
ret = -EPERM;
new_value = bond_parse_parm(buf, xmit_hashtype_tbl);
if (new_value < 0) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Ignoring invalid xmit hash policy value %.*s.\n",
bond->dev->name,
(int)strlen(buf) - 1, buf);
} else {
bond->params.xmit_policy = new_value;
bond_set_mode_ops(bond, bond->params.mode);
- printk(KERN_INFO DRV_NAME ": %s: setting xmit hash policy to %s (%d).\n",
- bond->dev->name, xmit_hashtype_tbl[new_value].modename, new_value);
+ pr_info(DRV_NAME ": %s: setting xmit hash policy to %s (%d).\n",
+ bond->dev->name,
+ xmit_hashtype_tbl[new_value].modename, new_value);
}
out:
return ret;
}
-static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, bonding_show_xmit_hash, bonding_store_xmit_hash);
+static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR,
+ bonding_show_xmit_hash, bonding_store_xmit_hash);
/*
* Show and set arp_validate.
new_value = bond_parse_parm(buf, arp_validate_tbl);
if (new_value < 0) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Ignoring invalid arp_validate value %s\n",
bond->dev->name, buf);
return -EINVAL;
}
if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: arp_validate only supported in active-backup mode.\n",
bond->dev->name);
return -EINVAL;
}
- printk(KERN_INFO DRV_NAME ": %s: setting arp_validate to %s (%d).\n",
+ pr_info(DRV_NAME ": %s: setting arp_validate to %s (%d).\n",
bond->dev->name, arp_validate_tbl[new_value].modename,
new_value);
- if (!bond->params.arp_validate && new_value) {
+ if (!bond->params.arp_validate && new_value)
bond_register_arp(bond);
- } else if (bond->params.arp_validate && !new_value) {
+ else if (bond->params.arp_validate && !new_value)
bond_unregister_arp(bond);
- }
bond->params.arp_validate = new_value;
return count;
}
-static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, bonding_store_arp_validate);
+static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate,
+ bonding_store_arp_validate);
/*
* Show and store fail_over_mac. User only allowed to change the
* value when there are no slaves.
*/
-static ssize_t bonding_show_fail_over_mac(struct device *d, struct device_attribute *attr, char *buf)
+static ssize_t bonding_show_fail_over_mac(struct device *d,
+ struct device_attribute *attr,
+ char *buf)
{
struct bonding *bond = to_bond(d);
bond->params.fail_over_mac);
}
-static ssize_t bonding_store_fail_over_mac(struct device *d, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t bonding_store_fail_over_mac(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
int new_value;
struct bonding *bond = to_bond(d);
if (bond->slave_cnt != 0) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Can't alter fail_over_mac with slaves in bond.\n",
bond->dev->name);
return -EPERM;
new_value = bond_parse_parm(buf, fail_over_mac_tbl);
if (new_value < 0) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Ignoring invalid fail_over_mac value %s.\n",
bond->dev->name, buf);
return -EINVAL;
}
bond->params.fail_over_mac = new_value;
- printk(KERN_INFO DRV_NAME ": %s: Setting fail_over_mac to %s (%d).\n",
+ pr_info(DRV_NAME ": %s: Setting fail_over_mac to %s (%d).\n",
bond->dev->name, fail_over_mac_tbl[new_value].modename,
new_value);
return count;
}
-static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, bonding_show_fail_over_mac, bonding_store_fail_over_mac);
+static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR,
+ bonding_show_fail_over_mac, bonding_store_fail_over_mac);
/*
* Show and set the arp timer interval. There are two tricky bits
struct bonding *bond = to_bond(d);
if (sscanf(buf, "%d", &new_value) != 1) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: no arp_interval value specified.\n",
bond->dev->name);
ret = -EINVAL;
goto out;
}
if (new_value < 0) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Invalid arp_interval value %d not in range 1-%d; rejected.\n",
bond->dev->name, new_value, INT_MAX);
ret = -EINVAL;
goto out;
}
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: Setting ARP monitoring interval to %d.\n",
bond->dev->name, new_value);
bond->params.arp_interval = new_value;
if (bond->params.arp_interval)
bond->dev->priv_flags |= IFF_MASTER_ARPMON;
if (bond->params.miimon) {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: ARP monitoring cannot be used with MII monitoring. "
"%s Disabling MII monitoring.\n",
bond->dev->name, bond->dev->name);
}
}
if (!bond->params.arp_targets[0]) {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: ARP monitoring has been set up, "
"but no ARP targets have been specified.\n",
bond->dev->name);
out:
return ret;
}
-static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR , bonding_show_arp_interval, bonding_store_arp_interval);
+static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR,
+ bonding_show_arp_interval, bonding_store_arp_interval);
/*
* Show and set the arp targets.
/* look for adds */
if (buf[0] == '+') {
if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: invalid ARP target %pI4 specified for addition\n",
bond->dev->name, &newtarget);
ret = -EINVAL;
goto out;
}
/* look for an empty slot to put the target in, and check for dupes */
- for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
+ for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) {
if (targets[i] == newtarget) { /* duplicate */
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: ARP target %pI4 is already present\n",
bond->dev->name, &newtarget);
- if (done)
- targets[i] = 0;
ret = -EINVAL;
goto out;
}
- if (targets[i] == 0 && !done) {
- printk(KERN_INFO DRV_NAME
+ if (targets[i] == 0) {
+ pr_info(DRV_NAME
": %s: adding ARP target %pI4.\n",
bond->dev->name, &newtarget);
done = 1;
}
}
if (!done) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: ARP target table is full!\n",
bond->dev->name);
ret = -EINVAL;
goto out;
}
- }
- else if (buf[0] == '-') {
+ } else if (buf[0] == '-') {
if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: invalid ARP target %pI4 specified for removal\n",
bond->dev->name, &newtarget);
ret = -EINVAL;
goto out;
}
- for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
+ for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) {
if (targets[i] == newtarget) {
- printk(KERN_INFO DRV_NAME
+ int j;
+ pr_info(DRV_NAME
": %s: removing ARP target %pI4.\n",
bond->dev->name, &newtarget);
- targets[i] = 0;
+ for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++)
+ targets[j] = targets[j+1];
+
+ targets[j] = 0;
done = 1;
}
}
if (!done) {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: unable to remove nonexistent ARP target %pI4.\n",
bond->dev->name, &newtarget);
ret = -EINVAL;
goto out;
}
- }
- else {
-
printk(KERN_ERR DRV_NAME ": no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n",
+ } else {
+ pr_err(DRV_NAME ": no command found in arp_ip_targets file"
+
" for bond %s. Use +<addr> or -<addr>.\n",
bond->dev->name);
ret = -EPERM;
goto out;
struct bonding *bond = to_bond(d);
if (!(bond->params.miimon)) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Unable to set down delay as MII monitoring is disabled\n",
bond->dev->name);
ret = -EPERM;
}
if (sscanf(buf, "%d", &new_value) != 1) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: no down delay value specified.\n",
bond->dev->name);
ret = -EINVAL;
goto out;
}
if (new_value < 0) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Invalid down delay value %d not in range %d-%d; rejected.\n",
bond->dev->name, new_value, 1, INT_MAX);
ret = -EINVAL;
bond->params.miimon);
}
bond->params.downdelay = new_value / bond->params.miimon;
- printk(KERN_INFO DRV_NAME ": %s: Setting down delay to %d.\n",
- bond->dev->name, bond->params.downdelay * bond->params.miimon);
+ pr_info(DRV_NAME ": %s: Setting down delay to %d.\n",
+ bond->dev->name,
+ bond->params.downdelay * bond->params.miimon);
}
out:
return ret;
}
-static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR , bonding_show_downdelay, bonding_store_downdelay);
+static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR,
+ bonding_show_downdelay, bonding_store_downdelay);
static ssize_t bonding_show_updelay(struct device *d,
struct device_attribute *attr,
struct bonding *bond = to_bond(d);
if (!(bond->params.miimon)) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Unable to set up delay as MII monitoring is disabled\n",
bond->dev->name);
ret = -EPERM;
}
if (sscanf(buf, "%d", &new_value) != 1) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: no up delay value specified.\n",
bond->dev->name);
ret = -EINVAL;
goto out;
}
if (new_value < 0) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Invalid down delay value %d not in range %d-%d; rejected.\n",
bond->dev->name, new_value, 1, INT_MAX);
ret = -EINVAL;
bond->params.miimon);
}
bond->params.updelay = new_value / bond->params.miimon;
- printk(KERN_INFO DRV_NAME ": %s: Setting up delay to %d.\n",
+ pr_info(DRV_NAME ": %s: Setting up delay to %d.\n",
bond->dev->name, bond->params.updelay * bond->params.miimon);
}
out:
return ret;
}
-static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR , bonding_show_updelay, bonding_store_updelay);
+static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR,
+ bonding_show_updelay, bonding_store_updelay);
/*
* Show and set the LACP interval. Interface must be down, and the mode
struct bonding *bond = to_bond(d);
if (bond->dev->flags & IFF_UP) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Unable to update LACP rate because interface is up.\n",
bond->dev->name);
ret = -EPERM;
}
if (bond->params.mode != BOND_MODE_8023AD) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Unable to update LACP rate because bond is not in 802.3ad mode.\n",
bond->dev->name);
ret = -EPERM;
if ((new_value == 1) || (new_value == 0)) {
bond->params.lacp_fast = new_value;
- printk(KERN_INFO DRV_NAME
- ": %s: Setting LACP rate to %s (%d).\n",
- bond->dev->name, bond_lacp_tbl[new_value].modename, new_value);
+ pr_info(DRV_NAME ": %s: Setting LACP rate to %s (%d).\n",
+ bond->dev->name, bond_lacp_tbl[new_value].modename,
+ new_value);
} else {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Ignoring invalid LACP rate value %.*s.\n",
- bond->dev->name, (int)strlen(buf) - 1, buf);
+ bond->dev->name, (int)strlen(buf) - 1, buf);
ret = -EINVAL;
}
out:
return ret;
}
-static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, bonding_show_lacp, bonding_store_lacp);
+static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR,
+ bonding_show_lacp, bonding_store_lacp);
static ssize_t bonding_show_ad_select(struct device *d,
struct device_attribute *attr,
struct bonding *bond = to_bond(d);
if (bond->dev->flags & IFF_UP) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Unable to update ad_select because interface "
"is up.\n", bond->dev->name);
ret = -EPERM;
if (new_value != -1) {
bond->params.ad_select = new_value;
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: Setting ad_select to %s (%d).\n",
bond->dev->name, ad_select_tbl[new_value].modename,
new_value);
} else {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Ignoring invalid ad_select value %.*s.\n",
bond->dev->name, (int)strlen(buf) - 1, buf);
ret = -EINVAL;
out:
return ret;
}
-
-static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, bonding_show_ad_select, bonding_store_ad_select);
+static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR,
+ bonding_show_ad_select, bonding_store_ad_select);
/*
* Show and set the number of grat ARP to send after a failover event.
struct bonding *bond = to_bond(d);
if (sscanf(buf, "%d", &new_value) != 1) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: no num_grat_arp value specified.\n",
bond->dev->name);
ret = -EINVAL;
goto out;
}
if (new_value < 0 || new_value > 255) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n",
bond->dev->name, new_value);
ret = -EINVAL;
out:
return ret;
}
-static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, bonding_show_n_grat_arp, bonding_store_n_grat_arp);
+static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR,
+ bonding_show_n_grat_arp, bonding_store_n_grat_arp);
/*
- * Show and set the number of unsolicted NA's to send after a failover event.
+ * Show and set the number of unsolicited NA's to send after a failover event.
*/
static ssize_t bonding_show_n_unsol_na(struct device *d,
struct device_attribute *attr,
struct bonding *bond = to_bond(d);
if (sscanf(buf, "%d", &new_value) != 1) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: no num_unsol_na value specified.\n",
bond->dev->name);
ret = -EINVAL;
goto out;
}
+
if (new_value < 0 || new_value > 255) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Invalid num_unsol_na value %d not in range 0-255; rejected.\n",
bond->dev->name, new_value);
ret = -EINVAL;
goto out;
- } else {
+ } else
bond->params.num_unsol_na = new_value;
- }
out:
return ret;
}
-static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, bonding_show_n_unsol_na, bonding_store_n_unsol_na);
+static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR,
+ bonding_show_n_unsol_na, bonding_store_n_unsol_na);
/*
* Show and set the MII monitor interval. There are two tricky bits
struct bonding *bond = to_bond(d);
if (sscanf(buf, "%d", &new_value) != 1) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: no miimon value specified.\n",
bond->dev->name);
ret = -EINVAL;
goto out;
}
if (new_value < 0) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: Invalid miimon value %d not in range %d-%d; rejected.\n",
bond->dev->name, new_value, 1, INT_MAX);
ret = -EINVAL;
goto out;
} else {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: Setting MII monitoring interval to %d.\n",
bond->dev->name, new_value);
bond->params.miimon = new_value;
- if(bond->params.updelay)
- printk(KERN_INFO DRV_NAME
+ if (bond->params.updelay)
+ pr_info(DRV_NAME
": %s: Note: Updating updelay (to %d) "
"since it is a multiple of the miimon value.\n",
bond->dev->name,
bond->params.updelay * bond->params.miimon);
- if(bond->params.downdelay)
- printk(KERN_INFO DRV_NAME
+ if (bond->params.downdelay)
+ pr_info(DRV_NAME
": %s: Note: Updating downdelay (to %d) "
"since it is a multiple of the miimon value.\n",
bond->dev->name,
bond->params.downdelay * bond->params.miimon);
if (bond->params.arp_interval) {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: MII monitoring cannot be used with "
"ARP monitoring. Disabling ARP monitoring...\n",
bond->dev->name);
out:
return ret;
}
-static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, bonding_show_miimon, bonding_store_miimon);
+static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR,
+ bonding_show_miimon, bonding_store_miimon);
/*
* Show and set the primary slave. The store function is much
struct slave *slave;
struct bonding *bond = to_bond(d);
- rtnl_lock();
+ if (!rtnl_trylock())
+ return restart_syscall();
read_lock(&bond->lock);
write_lock_bh(&bond->curr_slave_lock);
if (!USES_PRIMARY(bond->params.mode)) {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: Unable to set primary slave; %s is in mode %d\n",
bond->dev->name, bond->dev->name, bond->params.mode);
} else {
if (strnicmp
(slave->dev->name, buf,
strlen(slave->dev->name)) == 0) {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: Setting %s as primary slave.\n",
bond->dev->name, slave->dev->name);
bond->primary_slave = slave;
/* if we got here, then we didn't match the name of any slave */
if (strlen(buf) == 0 || buf[0] == '\n') {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: Setting primary slave to None.\n",
bond->dev->name);
bond->primary_slave = NULL;
bond_select_active_slave(bond);
} else {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: Unable to set %.*s as primary slave as it is not a slave.\n",
bond->dev->name, (int)strlen(buf) - 1, buf);
}
return count;
}
-static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, bonding_show_primary, bonding_store_primary);
+static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR,
+ bonding_show_primary, bonding_store_primary);
/*
* Show and set the use_carrier flag.
if (sscanf(buf, "%d", &new_value) != 1) {
- printk(KERN_ERR DRV_NAME
+ pr_err(DRV_NAME
": %s: no use_carrier value specified.\n",
bond->dev->name);
ret = -EINVAL;
}
if ((new_value == 0) || (new_value == 1)) {
bond->params.use_carrier = new_value;
- printk(KERN_INFO DRV_NAME ": %s: Setting use_carrier to %d.\n",
+ pr_info(DRV_NAME ": %s: Setting use_carrier to %d.\n",
bond->dev->name, new_value);
} else {
- printk(KERN_INFO DRV_NAME
+ pr_info(DRV_NAME
": %s: Ignoring invalid use_carrier value %d.\n",
bond->dev->name, new_value);
}
out:
return count;
}
-static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, bonding_show_carrier, bonding_store_carrier);
+static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR,
+ bonding_show_carrier, bonding_store_carrier);
/*
{
int i;
struct slave *slave;
- struct slave *old_active = NULL;
- struct slave *new_active = NULL;
+ struct slave *old_active = NULL;
+ struct slave *new_active = NULL;
struct bonding *bond = to_bond(d);
- rtnl_lock();
+ if (!rtnl_trylock())
+ return restart_syscall();
read_lock(&bond->lock);
write_lock_bh(&bond->curr_slave_lock);
- if (!USES_PRIMARY(bond->params.mode)) {
- printk(KERN_INFO DRV_NAME
- ": %s: Unable to change active slave; %s is in mode %d\n",
- bond->dev->name, bond->dev->name, bond->params.mode);
- } else {
+ if (!USES_PRIMARY(bond->params.mode))
+ pr_info(DRV_NAME ": %s: Unable to change active slave;"
+ " %s is in mode %d\n",
+ bond->dev->name, bond->dev->name, bond->params.mode);
+ else {
bond_for_each_slave(bond, slave, i) {
if (strnicmp
(slave->dev->name, buf,
/* if we got here, then we didn't match the name of any slave */
if (strlen(buf) == 0 || buf[0] == '\n') {
- printk(KERN_INFO DRV_NAME
- ": %s: Setting active slave to None.\n",
- bond->dev->name);
+ pr_info(DRV_NAME
+ ": %s: Setting active slave to None.\n",
+ bond->dev->name);
bond->primary_slave = NULL;
- bond_select_active_slave(bond);
+ bond_select_active_slave(bond);
} else {
- printk(KERN_INFO DRV_NAME
- ": %s: Unable to set %.*s as active slave as it is not a slave.\n",
- bond->dev->name, (int)strlen(buf) - 1, buf);
+ pr_info(DRV_NAME ": %s: Unable to set %.*s"
+ " as active slave as it is not a slave.\n",
+ bond->dev->name, (int)strlen(buf) - 1, buf);
}
}
-out:
+ out:
write_unlock_bh(&bond->curr_slave_lock);
read_unlock(&bond->lock);
rtnl_unlock();
return count;
}
-static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, bonding_show_active_slave, bonding_store_active_slave);
+static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR,
+ bonding_show_active_slave, bonding_store_active_slave);
/*
curr = bond->curr_active_slave;
read_unlock(&bond->curr_slave_lock);
- return sprintf(buf, "%s\n", (curr) ? "up" : "down");
+ return sprintf(buf, "%s\n", curr ? "up" : "down");
}
static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL);
if (bond->params.mode == BOND_MODE_8023AD) {
struct ad_info ad_info;
- count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.aggregator_id);
+ count = sprintf(buf, "%d\n",
+ (bond_3ad_get_active_agg_info(bond, &ad_info))
+ ? 0 : ad_info.aggregator_id);
}
return count;
if (bond->params.mode == BOND_MODE_8023AD) {
struct ad_info ad_info;
- count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0: ad_info.ports);
+ count = sprintf(buf, "%d\n",
+ (bond_3ad_get_active_agg_info(bond, &ad_info))
+ ? 0 : ad_info.ports);
}
return count;
if (bond->params.mode == BOND_MODE_8023AD) {
struct ad_info ad_info;
- count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.actor_key);
+ count = sprintf(buf, "%d\n",
+ (bond_3ad_get_active_agg_info(bond, &ad_info))
+ ? 0 : ad_info.actor_key);
}
return count;
if (bond->params.mode == BOND_MODE_8023AD) {
struct ad_info ad_info;
- count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.partner_key);
+ count = sprintf(buf, "%d\n",
+ (bond_3ad_get_active_agg_info(bond, &ad_info))
+ ? 0 : ad_info.partner_key);
}
return count;
if (bond->params.mode == BOND_MODE_8023AD) {
struct ad_info ad_info;
- if (!bond_3ad_get_active_agg_info(bond, &ad_info)) {
+ if (!bond_3ad_get_active_agg_info(bond, &ad_info))
count = sprintf(buf, "%pM\n", ad_info.partner_system);
- }
}
return count;
printk(KERN_ERR
"network device named %s already exists in sysfs",
class_attr_bonding_masters.attr.name);
+ ret = 0;
}
return ret;
int err;
err = sysfs_create_group(&(dev->dev.kobj), &bonding_group);
- if (err) {
+ if (err)
printk(KERN_EMERG "eek! didn't create group!\n");
- }
-
- if (expected_refcount < 1)
- expected_refcount = atomic_read(&bond->dev->dev.kobj.kref.refcount);
return err;
}
projects / linux-block.git / blobdiff