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6e259bc5a1
Improve the distribution algorithm of random base address to ensure a uniformity among all suitable addresses. To generate a random value once, and to build a continuous range in which every value is suitable, count all the suitable addresses (referred to as positions) that can be used as a base address. The positions are counted by iterating over the usable memory ranges. For each range that is big enough to accommodate the image, count all the suitable addresses where the image can be placed, while taking reserved memory ranges into consideration. A new function "iterate_valid_positions()" has dual purpose. Firstly, it is called to count the positions in a given memory range, and secondly, to convert a random position back to an address. "get_random_base()" has been replaced with more generic "randomize_within_range()" which now could be called for randomizing base addresses not just for the kernel image. Acked-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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| fs | ||
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| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
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| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| .mailmap | ||
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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.