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John Fastabend
f7e9cb1ecb
The skb->mark field is a union with reserved_tailroom which is used in the TCP code paths from stream memory allocation. Allowing SK_SKB programs to set this field creates a conflict with future code optimizations, such as "gifting" the skb to the egress path instead of creating a new skb and doing a memcpy. Because we do not have a released version of SK_SKB yet lets just remove it for now. A more appropriate scratch pad to use at the socket layer is dev_scratch, but lets add that in future kernels when needed. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.