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| author | David S. Miller <davem@davemloft.net> | 2021-09-23 12:50:26 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-09-23 12:50:26 +0100 |
| commit | 5146a574606ae6543adeb04471cc4903ee169fb6 (patch) | |
| tree | 1976a34b63ebd315e6741ceb3bf582fe0e63a4bc /Documentation | |
| parent | efe686ffce0145418b4e004f95c6d0c0200aedd2 (diff) | |
| parent | d8b81175e412c7abebdb5b37d8a84d5fd19b1aad (diff) | |
Merge branch 'remove-sk-skb-caches'
Paolo Abeni says:
====================
net: remove sk skb caches
Eric noted we would be better off reverting the sk
skb caches.
MPTCP relies on such a feature, so we need a
little refactor of the MPTCP tx path before the mentioned
revert.
The first patch exposes additional TCP helpers. The 2nd patch
changes the MPTCP code to do locally the whole skb allocation
and updating, so it does not rely anymore on core TCP helpers
for that nor the sk skb cache.
As a side effect, we can make the tcp_build_frag helper static.
Finally, we can pull Eric's revert.
RFC -> v1:
- drop driver specific patch - no more needed after helper rename
- rename skb_entail -> tcp_skb_entail (Eric)
- preserve the tcp_build_frag helpwe, just make it static (Eric)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/ip-sysctl.rst | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst index d91ab28718d4..16b8bf72feaf 100644 --- a/Documentation/networking/ip-sysctl.rst +++ b/Documentation/networking/ip-sysctl.rst @@ -989,14 +989,6 @@ tcp_challenge_ack_limit - INTEGER in RFC 5961 (Improving TCP's Robustness to Blind In-Window Attacks) Default: 1000 -tcp_rx_skb_cache - BOOLEAN - Controls a per TCP socket cache of one skb, that might help - performance of some workloads. This might be dangerous - on systems with a lot of TCP sockets, since it increases - memory usage. - - Default: 0 (disabled) - UDP variables ============= |