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| author |   Eric Dumazet <edumazet@google.com> | 2019-06-12 09:52:32 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-06-14 18:52:14 -0700 |
| commit | 3a2bb84e4aeab5c90d16e1cd17dbaa17631af529 (patch) | |
| tree | c49e1fe841e2a01314f4d7454d8472c6fcd7d5df /fs | |
| parent | net/packet: implement shortcut in tpacket_rcv() (diff) | |
| download | linux-dev-3a2bb84e4aeab5c90d16e1cd17dbaa17631af529.tar.xz linux-dev-3a2bb84e4aeab5c90d16e1cd17dbaa17631af529.zip | |
net/packet: remove locking from packet_rcv_has_room()
__packet_rcv_has_room() can now be run without lock being held.
po->pressure is only a non persistent hint, we can mark
all read/write accesses with READ_ONCE()/WRITE_ONCE()
to document the fact that the field could be written
without any synchronization.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions