netpoll: do not warn when the best-effort pool refill fails

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refill_skbs() tops up the per-netpoll skb pool with GFP_ATOMIC and
simply stops on the first allocation failure, leaving the pool partially
filled; a later refill tops it up once memory frees up. The allocation
failing is therefore an expected and fully handled condition, but
without __GFP_NOWARN the page allocator emits a warn_alloc() splat with
a full stack trace on every miss.

Pass __GFP_NOWARN so the best-effort refill stays quiet, mirroring the
same change in netconsole's find_skb().

Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260629-netpoll_no_warn-v1-2-f380f0b2cd0c@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Breno Leitao 2026-06-29 04:45:41 -07:00 • committed by Jakub Kicinski

parent 09f7a613a1

commit 84c0ff1efb

1 changed files with 1 additions and 1 deletions

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net/core/netpoll.c

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