46a22776bc
Reduce the scope of the kernel_neon_begin/end regions so that the SIMD unit is released (and thus preemption re-enabled) if the crypto operation cannot be completed in a single scatterwalk step. This avoids scheduling blackouts due to preemption being enabled for unbounded periods, resulting in a more responsive system. After this change, we can also permit the cipher_walk infrastructure to sleep, so set the 'atomic' parameter to skcipher_walk_virt() to false as well. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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.