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3597e506e5
Add a function fscrypt_needs_contents_encryption() which takes an inode and returns true if it's an encrypted regular file and the kernel was built with fscrypt support. This will allow replacing duplicated checks of IS_ENCRYPTED() && S_ISREG() on the I/O paths in ext4 and f2fs, while also optimizing out unneeded code when !CONFIG_FS_ENCRYPTION. Link: https://lore.kernel.org/r/20191209205021.231767-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.