75518851a2
Before this change, the caller of sock_zerocopy_callback would need to save the zerocopy status, decrement and check the refcount, and then call the callback function - the callback was only invoked when the refcount reached zero. Now, the caller just passes the status into the callback function, which saves the status and handles its own refcounts. This makes the behavior of the sock_zerocopy_callback identical to the tpacket and vhost callbacks. Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.