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b4e8ae5c8c
This adds the napi_busy_loop_rcu() function. This function assumes that the calling function is already holding the rcu read lock and napi_busy_loop() does not need to take the rcu read lock. Add a NAPI_F_NO_SCHED flag, which tells __napi_busy_loop() to abort if we need to reschedule rather than drop the RCU read lock and reschedule. Signed-off-by: Stefan Roesch <shr@devkernel.io> Link: https://lore.kernel.org/r/20230608163839.2891748-3-shr@devkernel.io Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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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.