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f8011d3344
This is a small optimization in writecache_find_entry(). If we go past the condition "if (unlikely(!node))", we can be certain that there is no entry in the tree that has the block equal to the "block" variable. Consequently, we can return the next entry directly, we don't need to go to the second part of the function that finds the entry with lowest or highest seq number that matches the "block" variable. Also, add some whitespace and cleanup needless braces. Suggested-by: Huaisheng Ye <yehs1@lenovo.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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.