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3f8e0aae17
This will simplify mptcp-level retransmission implementation in the next patch. If dfrag is provided by the caller, skip kernel space memory allocation and use data and metadata provided by the dfrag itself. Because a peer could ack data at TCP level but refrain from sending mptcp-level ACKs, we could grow the mptcp socket backlog indefinitely. We should thus block mptcp_sendmsg until the peer has acked some of the sent data. In order to be able to do so, increment the mptcp socket wmem_queued counter on memory allocation and decrement it when releasing the memory on mptcp-level ack reception. Because TCP performns sndbuf auto-tuning up to tcp_wmem_max[2], make this the mptcp sk_sndbuf limit. In the future we could add experiment with autotuning as TCP does in tcp_sndbuf_expand(). v2 -> v3: - remove 'inline' in foo.c files (David S. Miller) Co-developed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.