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(parent: e0d694d) | patch
tcp: annotate tp->urg_seq lockless reads
authorEric Dumazet <edumazet@google.com>
Fri, 11 Oct 2019 03:17:43 +0000 (20:17 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sun, 13 Oct 2019 17:13:08 +0000 (10:13 -0700)
commitd9b55bf7b6788ec0bd1db1acefbc4feb1399144a
tree428615c37202b0d44173735a2efe04651aff469btree | snapshot
parente0d694d638dba768b47be31c22e1a9b4f862f561commit | diff
tcp: annotate tp->urg_seq lockless reads

There two places where we fetch tp->urg_seq while
this field can change from IRQ or other cpu.

We need to add READ_ONCE() annotations, and also make
sure write side use corresponding WRITE_ONCE() to avoid
store-tearing.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp.c diff | blob | blame | history
net/ipv4/tcp_input.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)