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For a kmalloc object, when both kasan and slub redzone sanity check are enabled, they could both manipulate its data space like storing kasan free meta data and setting up kmalloc redzone, and may affect accuracy of that object's 'orig_size'. As an accurate 'orig_size' will be needed by some function like krealloc() soon, save kasan's free meta data in slub's metadata area instead of inside object when 'orig_size' is enabled. This will make it easier to maintain/understand the code. Size wise, when these two options are both enabled, the slub meta data space is already huge, and this just slightly increase the overall size. Signed-off-by: Feng Tang <feng.tang@intel.com> Acked-by: Andrey Konovalov <andreyknvl@gmail.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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.