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d09b9e60e0
Fixes DSACK-based undo when sender is in Open State and an ACK advances snd_una. Example scenario: - Sender goes into recovery and makes some spurious rtx. - It comes out of recovery and enters into open state. - It sends some more packets, let's say 4. - The receiver sends an ACK for the first two, but this ACK is lost. - The sender receives ack for first two, and DSACK for previous spurious rtx. Signed-off-by: Priyaranjan Jha <priyarjha@google.com> Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Acked-by: Yousuk Seung <ysseung@google.com> 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.