macvlan: avoid spinlock contention in macvlan_broadcast_enqueue()

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Under high stress, we spend a lot of time cloning skbs,
then acquiring a spinlock, then freeing the clone because
the queue is full.

Add a shortcut to avoid these costs under pressure.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260401103809.3038139-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Eric Dumazet 2026-04-01 10:38:09 +00:00 • committed by Jakub Kicinski

parent 1ef5789d99

commit 0d5dc1d7aa

1 changed files with 3 additions and 0 deletions

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drivers/net/macvlan.c

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