This is a bit of a diversion from what I'm notionally working on at
the moment. While thinking about what we'd need to use the
IP_TRANSPARENT socket option to broaden the cases where we can
"splice", I noticed some inelegancies in how we handle the pool of
pre-opened sockets in the TCP code, and well, here we are.
This makes a number of cleanups to the handling of these pools. Most
notably, tcp_splice_connect() now has simpler semantics: it now always
runs in the init namespace, and is always given a pre-opened socket
(which could be in the guest ns).
Changes since v1:
* Rebased
* Improved wording of some commit messages
David Gibson (5):
tcp: Make a helper to refill each socket pool
tcp: Split init and ns cases for tcp_sock_refill()
tcp: Move socket pool declarations around
tcp: Split pool lookup from creating new sockets in
tcp_conn_new_sock()
tcp: Improve handling of fallback if socket pool is empty on new
splice
tcp.c | 138 ++++++++++++++++++-------------------------------
tcp.h | 2 -
tcp_conn.h | 12 ++++-
tcp_splice.c | 141 ++++++++++++++++++++++++++-------------------------
4 files changed, 132 insertions(+), 161 deletions(-)
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2.39.1