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e9dfe33aea
There's no need to record "." dirents in the directory data (while they could be used for sanity checks, they aren't very useful.) Omitting "." dirents also improves directory data deduplication. Use a per-inode (instead of per-sb) flag to indicate if the "." dirent is omitted or not, ensuring compatibility with incremental builds. It also reuses EROFS_I_NLINK_1_BIT, as it has very limited use cases for directories with `nlink = 1`. Emit the "." entry as the last virtual dirent in the directory because it is _much_ less frequently used than the ".." dirent. It also keeps `f_pos` meaningful, as it strictly follows the directory data when it's less than i_size. Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> Acked-by: Chao Yu <chao@kernel.org> Link: https://lore.kernel.org/r/20250310095459.2620647-6-hsiangkao@linux.alibaba.com |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
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| .clang-format | ||
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| .cocciconfig | ||
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| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
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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.