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09fd4860ea
ETF's peek() operation is heavily used so use an rb_root_cached instead and leverage rb_first_cached() which will run in O(1) instead of O(log n). Even if on 'timesortedlist_clear()' we could be using rb_erase(), we choose to use rb_erase_cached(), because if in the future we allow runtime changes to ETF parameters, and need to do a '_clear()', this might cause some hard to debug issues. Signed-off-by: Jesus Sanchez-Palencia <jesus.s.palencia@gmail.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.