[patch net-next-2.6] bonding: allow resetting slave failure counters
From: Jiri Pirko <hidden>
Date: 2011-06-01 09:41:10
Subsystem:
bonding driver, documentation, networking drivers, networking [general], the rest · Maintainers:
Jay Vosburgh, Jonathan Corbet, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This patch allows to reset failure counters for all enslaved devices. Signed-off-by: Jiri Pirko <redacted> --- Documentation/networking/bonding.txt | 7 +++++++ drivers/net/bonding/bond_sysfs.c | 27 +++++++++++++++++++++++++++ 2 files changed, 34 insertions(+), 0 deletions(-)
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index 675612f..2f51d73 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt@@ -782,6 +782,13 @@ resend_igmp This option was added for bonding version 3.7.0. +reset_failure_counters + + This write-only control file will zero failure counters for + all slaves. Note there is no appropriate module parameter for this + since it would not make much sense. + Write any value to perform reset. + 3. Configuring Bonding Devices ==============================
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 88fcb25..9b45164 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c@@ -1572,6 +1572,32 @@ out: static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, bonding_show_resend_igmp, bonding_store_resend_igmp); +static ssize_t +bonding_store_reset_failure_counters(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct slave *slave; + int i; + struct bonding *bond = to_bond(d); + + if (!rtnl_trylock()) + return restart_syscall(); + + read_lock(&bond->lock); + pr_info("%s: Resetting counters.\n", bond->dev->name); + bond_for_each_slave(bond, slave, i) + slave->link_failure_count = 0; + read_unlock(&bond->lock); + + rtnl_unlock(); + + return count; +} + +static DEVICE_ATTR(reset_failure_counters, S_IWUSR, NULL, + bonding_store_reset_failure_counters); + static struct attribute *per_bond_attrs[] = { &dev_attr_slaves.attr, &dev_attr_mode.attr,
@@ -1600,6 +1626,7 @@ static struct attribute *per_bond_attrs[] = { &dev_attr_queue_id.attr, &dev_attr_all_slaves_active.attr, &dev_attr_resend_igmp.attr, + &dev_attr_reset_failure_counters.attr, NULL, };
--
1.7.4.4