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b925acb8f8
IV_INO_LBLK_64 encryption policies have special requirements from the filesystem beyond those of the existing encryption policies: - Inode numbers must never change, even if the filesystem is resized. - Inode numbers must be <= 32 bits. - File logical block numbers must be <= 32 bits. ext4 has 32-bit inode and file logical block numbers. However, resize2fs can re-number inodes when shrinking an ext4 filesystem. However, typically the people who would want to use this format don't care about filesystem shrinking. They'd be fine with a solution that just prevents the filesystem from being shrunk. Therefore, add a new feature flag EXT4_FEATURE_COMPAT_STABLE_INODES that will do exactly that. Then wire up the fscrypt_operations to expose this flag to fs/crypto/, so that it allows IV_INO_LBLK_64 policies when this flag is set. Acked-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Biggers <ebiggers@google.com> |
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| drivers | ||
| fs | ||
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| init | ||
| ipc | ||
| kernel | ||
| lib | ||
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| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
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| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| 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.