Previously, even if just one of the many fragments of a 9k packet required a copy, we'd copy the whole packet into a freshly-allocated 9k-sized linear SKB, and this led to performance issues. By having a pool of pages to copy into, each fragment can be independently handled, leading to a reduced incidence of allocation and copy. Signed-off-by: Shailend Chand <shailend@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.
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