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31fb992ce6
After each filesystem block (as represented by a buffer_head) has been read from disk by block_read_full_page(), decrypt it if needed. The decryption is done on the fscrypt_read_workqueue. This is the final change needed to support ext4 encryption with blocksize != PAGE_SIZE, and it's a fairly small change now that CONFIG_FS_ENCRYPTION is a bool and fs/crypto/ exposes functions to decrypt individual blocks and to enqueue work on the fscrypt workqueue. Don't try to add fs-verity support yet, as the fs/verity/ support layer isn't ready for sub-page blocks yet. Just add fscrypt support for now. Almost all the new code is compiled away when CONFIG_FS_ENCRYPTION=n. Cc: Chandan Rajendra <chandan@linux.ibm.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20191023033312.361355-2-ebiggers@kernel.org Signed-off-by: Theodore Ts'o <tytso@mit.edu> |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| 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 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.