Comment 3 for bug 1083980

A bisect implicates this bad commit.

commit e7c2f967445dd2041f0f8e3179cca22bb8bb7f79
Author: Tejun Heo <email address hidden>
Date: Tue Aug 21 13:18:24 2012 -0700

    workqueue: use mod_delayed_work() instead of __cancel + queue

    Now that mod_delayed_work() is safe to call from IRQ handlers,
    __cancel_delayed_work() followed by queue_delayed_work() can be
    replaced with mod_delayed_work().

    Most conversions are straight-forward except for the following.

    * net/core/link_watch.c: linkwatch_schedule_work() was doing a quite
      elaborate dancing around its delayed_work. Collapse it such that
      linkwatch_work is queued for immediate execution if LW_URGENT and
      existing timer is kept otherwise.

    Signed-off-by: Tejun Heo <email address hidden>
    Cc: "David S. Miller" <email address hidden>
    Cc: Tomi Valkeinen <email address hidden>

 block/blk-core.c | 6 ++----
 block/blk-throttle.c | 7 +------
 drivers/block/floppy.c | 3 +--
 drivers/infiniband/core/mad.c | 14 +++++---------
 drivers/input/keyboard/qt2160.c | 3 +--
 drivers/input/mouse/synaptics_i2c.c | 7 +------
 net/core/link_watch.c | 21 ++++++---------------
 7 files changed, 17 insertions(+), 44 deletions(-)