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b07a2d97ba
We maintain a NAPI-local cache of skbs which is fed by napi_consume_skb(). Going forward we will also try to cache head and data pages. Plumb the "are we in a normal NAPI context" information thru deeper into the freeing path, up to skb_release_data() and skb_free_head()/skb_pp_recycle(). The "not normal NAPI context" comes from netpoll which passes budget of 0 to try to reap the Tx completions but not perform any Rx. Use "bool napi_safe" rather than bare "int budget", the further we get from NAPI the more confusing the budget argument may seem (particularly whether 0 or MAX is the correct value to pass in when not in NAPI). Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Tested-by: Dragos Tatulea <dtatulea@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| .clang-format | ||
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| README | ||
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.