[f/j/m:linux-aws][PATCH 0/1] tcp: Add memory barrier to tcp_push

Philip Cox philip.cox at canonical.com
Thu Feb 22 18:29:02 UTC 2024


BugLink: https://bugs.launchpad.net/bugs/2051727

SRU Justification:

[Impact]

Recently a patch has been accepted on the Linux Kernel
regarding the TCP stack which fix an additional +40ms
latency on ARM64 CPU architecture without impacting
other CPU types.

[Fix]

Upstream patch:
   7267e8dcad6b2f9fce05a6a06335d7040acbc2b6: tcp: Add memory barrier to tcp_push()
was submitted to address this.

[Test Plan]

AWS tested

[Where problems could occur]

The risk of regressions from this change is fairly low.

--


Salvatore Dipietro (1):
  tcp: Add memory barrier to tcp_push()

 net/ipv4/tcp.c | 1 +
 1 file changed, 1 insertion(+)

-- 
2.34.1




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