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The kernel periodically checks the idle time of nexthop buckets to determine if they are idle and can be re-populated with a new nexthop. When the resilient nexthop group is offloaded to hardware, the kernel will not see activity on nexthop buckets unless it is reported from hardware. Therefore, periodically (every 1 second) query the hardware for activity of adjacency entries used as part of a resilient nexthop group and report it to the nexthop code. The activity is only queried if resilient nexthop groups are in use. The delayed work is canceled otherwise. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.