0b578f358a
In ext4_block_write_begin(), only decrypt the blocks that actually need to be decrypted (up to two blocks which intersect the boundaries of the region that will be written to), rather than assuming blocksize == PAGE_SIZE and decrypting the whole page. This is in preparation for allowing encryption on ext4 filesystems with blocksize != PAGE_SIZE. Signed-off-by: Chandan Rajendra <chandan@linux.ibm.com> (EB: rebase onto previous changes, improve the commit message, and move the check for encrypted inode) 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.
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.