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Eric Dumazet says: ==================== tcp: add zero copy receive This patch series add mmap() support to TCP sockets for RX zero copy. While tcp_mmap() patch itself is quite small (~100 LOC), optimal support for asynchronous mmap() required better SO_RCVLOWAT behavior, and a test program to demonstrate how mmap() on TCP sockets can be used. Note that mmap() (and associated munmap()) calls are adding more pressure on per-process VM semaphore, so might not show benefit for processus with high number of threads. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
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In order to build the documentation, use ``make htmldocs`` or
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https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
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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
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the problems which may result by upgrading your kernel.