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linux/net/bridge
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Eric Dumazet a399a80531 time: jiffies_delta_to_clock_t() helper to the rescue 
Various /proc/net files sometimes report crazy timer values, expressed
in clock_t units.

This happens when an expired timer delta (expires - jiffies) is passed
to jiffies_to_clock_t().

This function has an overflow in :

return div_u64((u64)x * TICK_NSEC, NSEC_PER_SEC / USER_HZ);

commit cbbc719fcc (time: Change jiffies_to_clock_t() argument type
to unsigned long) only got around the problem.

As we cant output negative values in /proc/net/tcp without breaking
various tools, I suggest adding a jiffies_delta_to_clock_t() wrapper
that caps the negative delta to a 0 value.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Maciej Żenczykowski <maze@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: hank <pyu@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-09 16:17:03 -07:00
..
netfilter netfilter: use kfree_skb() not kfree() 2012-06-30 17:26:51 -07:00
br_device.c net: fix race condition in several drivers when reading stats 2012-07-22 12:12:32 -07:00
br_fdb.c time: jiffies_delta_to_clock_t() helper to the rescue 2012-08-09 16:17:03 -07:00
br_forward.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-07 23:35:40 -04:00
br_if.c bridge: Assign rtnl_link_ops to bridge devices created via ioctl (v2) 2012-06-26 21:12:32 -07:00
br_input.c bridge: Convert compare_ether_addr to ether_addr_equal 2012-05-09 20:49:17 -04:00
br_ioctl.c
br_multicast.c bridge: Fix enforcement of multicast hash_max limit 2012-07-16 22:59:30 -07:00
br_netfilter.c net: Pass optional SKB and SK arguments to dst_ops->{update_pmtu,redirect}() 2012-07-17 03:29:28 -07:00
br_netlink.c bridge: Assign rtnl_link_ops to bridge devices created via ioctl (v2) 2012-06-26 21:12:32 -07:00
br_notify.c Bridge: Always send NETDEV_CHANGEADDR up on br MAC change. 2011-08-09 21:44:44 -07:00
br_private_stp.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
br_private.h bridge: Assign rtnl_link_ops to bridge devices created via ioctl (v2) 2012-06-26 21:12:32 -07:00
br_stp_bpdu.c bridge: Convert compare_ether_addr to ether_addr_equal 2012-05-09 20:49:17 -04:00
br_stp_if.c bridge: Convert compare_ether_addr to ether_addr_equal 2012-05-09 20:49:17 -04:00
br_stp_timer.c time: jiffies_delta_to_clock_t() helper to the rescue 2012-08-09 16:17:03 -07:00
br_stp.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
br_sysfs_br.c bridge: Add multicast_querier toggle and disable queries by default 2012-04-15 12:51:35 -04:00
br_sysfs_if.c bridge: make port attributes const 2012-07-30 14:53:22 -07:00
br.c net:bridge: use IS_ENABLED 2011-12-16 15:49:52 -05:00
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