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6b8417b7e6
Using graft notifications recreate in the driver the full Qdisc hierarchy. Keep track of how many times each Qdisc is attached to the hierarchy to make sure we don't offload Qdiscs which are attached multiple times (device queues can't be shared). For graft events of Qdiscs we don't know exist make the child as invalid/untracked. Note that MQ Qdisc doesn't send destruction events reliably when device is dismantled, so we need to manually clean out the children otherwise we'd think Qdiscs which are still in use are getting freed. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.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.