ab0b196ce5
When io_req_map_rw() is called from io_rw_prep_async(), it memcpy() iorw->iter into itself. Even though it doesn't lead to an error, such a memcpy()'s aliasing rules violation is considered to be a bad practise. Inline io_req_map_rw() into io_rw_prep_async(). We don't really need any remapping there, so it's much simpler than the generic implementation. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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.