]> git.ipfire.org Git - thirdparty/kernel/stable.git/commitdiff
Merge branch 'net-lockless-skb_attempt_defer_free'
authorPaolo Abeni <pabeni@redhat.com>
Tue, 30 Sep 2025 13:45:54 +0000 (15:45 +0200)
committerPaolo Abeni <pabeni@redhat.com>
Tue, 30 Sep 2025 13:45:55 +0000 (15:45 +0200)
Eric Dumazet says:

====================
net: lockless skb_attempt_defer_free()

Platforms with many cpus and relatively slow inter connect show
a significant spinlock contention in skb_attempt_defer_free().

This series refactors this infrastructure to be NUMA aware,
and lockless.

Tested on various platforms, including AMD Zen 2/3/4
and Intel Granite Rapids, showing significant cost reductions
under network stress (more than 20 Mpps).
====================

Link: https://patch.msgid.link/20250928084934.3266948-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Trivial merge