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29349a3d6dChristian Brauner <brauner@kernel.org> says: Allow overlayfs to use O_PATH file descriptors when specifying layers. Userspace must currently use non-O_PATH file desriptors which is often pointless especially if the file descriptors have been created via open_tree(OPEN_TREE_CLONE). This has been a frequent request and came up again in [1]. Link: https://lore.kernel.org/r/fd8f6574-f737-4743-b220-79c815ee1554@mbaynton.com [1] * patches from https://lore.kernel.org/r/20250210-work-overlayfs-v2-0-ed2a949b674b@kernel.org: selftests/overlayfs: test specifying layers as O_PATH file descriptors fs: support O_PATH fds with FSCONFIG_SET_FD Link: https://lore.kernel.org/r/20250210-work-overlayfs-v2-0-ed2a949b674b@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org> |
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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.