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Eric Biggers 6ff2deb2e8 fs-verity: add a documentation file
Add a documentation file for fs-verity, covering:

- Introduction
- Use cases
- User API
    - FS_IOC_ENABLE_VERITY
    - FS_IOC_MEASURE_VERITY
    - FS_IOC_GETFLAGS
- Accessing verity files
- File measurement computation
    - Merkle tree
    - fs-verity descriptor
- Built-in signature verification
- Filesystem support
    - ext4
    - f2fs
- Implementation details
    - Verifying data
        - Pagecache
        - Block device based filesystems
- Userspace utility
- Tests
- FAQ

Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
History 2019-07-28 16:59:15 -07:00
arch
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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.