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19dd484cd1
The function checks info->vq_map for emptiness right before calling find_last_bit(). We can use the find_last_bit() output and save on bitmap_empty() call, which is O(N). Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com> Signed-off-by: Will Deacon <will@kernel.org> |
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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 reStructuredText 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.