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Eric Dumazet 7bdb2b038c net/sched: sch_pie: annotate data-races in pie_dump_stats()

[ Upstream commit 5154561d9b ]

pie_dump_stats() only runs with RTNL held,
reading fields that can be changed in qdisc fast path.

Add READ_ONCE()/WRITE_ONCE() annotations.

Alternative would be to acquire the qdisc spinlock, but our long-term
goal is to make qdisc dump operations lockless as much as we can.

tc_pie_xstats fields don't need to be latched atomically,
otherwise this bug would have been caught earlier.

Fixes: edb09eb17e ("net: sched: do not acquire qdisc spinlock in qdisc/class stats dump")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/20260421142944.4009941-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-05-23 13:03:25 +02:00

acpi

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asm-generic

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clocksource

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crypto

crypto: algif_aead - Revert to operating out-of-place

2026-04-30 11:17:21 +02:00

drm

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