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When converting a Box<T> into a void pointer, the allocator might guarantee a higher alignment than the type itself does, and in that case it is guaranteed that the void pointer has that higher alignment. This is quite useful when combined with the XArray, which you can only create using a ForeignOwnable whose FOREIGN_ALIGN is at least 4. This means that you can now always use a Box<T> with the XArray no matter the alignment of T. Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Alice Ryhl <aliceryhl@google.com> Acked-by: Liam R. Howlett <Liam.Howlett@oracle.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250811-align-min-allocator-v2-2-3386cc94f4fc@google.com Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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| fs | ||
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| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
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| .editorconfig | ||
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| .pylintrc | ||
| .rustfmt.toml | ||
| COPYING | ||
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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 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.