mainlining shenanigans
f4cceb7831
Lorenz Bauer says: ==================== github.com/cilium/ebpf runs integration tests with libbpf in a vm on CI. I recently did some work to increase the code coverage from that, and started experiencing OOM-kills in the VM. That led me down a rabbit hole looking at verifier memory allocation patterns. I didn't figure out what triggered the OOM-kills but refactored some often called memory allocation code. The key insight is that often times we don't need to do a full kfree / kmalloc, but can instead just reallocate. The first patch adds two helpers which do just that for the use cases in the verifier, which are sufficiently different that they can't use stock krealloc_array and friends. The series makes bpf_verif_scale about 10% faster in my VM set up, which is especially noticeable when running with KASAN enabled. ==================== Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
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| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
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| .clang-format | ||
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| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
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| Kbuild | ||
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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.