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e896474fe4
Semantics used by statx(2) (and later *xattrat(2)): without AT_EMPTY_PATH it's standard getname() (i.e. ERR_PTR(-ENOENT) on empty string, ERR_PTR(-EFAULT) on NULL), with AT_EMPTY_PATH both empty string and NULL are accepted. Calling conventions: getname_maybe_null(user_pointer, flags) returns * pointer to struct filename when non-empty string had been successfully read * ERR_PTR(...) on error * NULL if an empty string or NULL pointer had been given with AT_EMPTY_PATH in the flags argument. It tries to avoid allocation in the last case; it's not always able to do so, in which case the temporary struct filename instance is freed and NULL returned anyway. Fast path is inlined. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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| 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.