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| author |   Eric Dumazet <edumazet@google.com> | 2019-11-05 14:11:51 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-11-06 16:14:48 -0800 |
| commit | 25c7a6d1f90e208ec27ca854b1381ed39842ec57 (patch) | |
| tree | a645c406ef309589a1c6f851ca1ba761575a00b4 /net/sctp/endpointola.c | |
| parent | inet_diag: use jiffies_delta_to_msecs() (diff) | |
| download | linux-dev-25c7a6d1f90e208ec27ca854b1381ed39842ec57.tar.xz linux-dev-25c7a6d1f90e208ec27ca854b1381ed39842ec57.zip | |
net: avoid potential false sharing in neighbor related code
There are common instances of the following construct :
if (n->confirmed != now)
n->confirmed = now;
A C compiler could legally remove the conditional.
Use READ_ONCE()/WRITE_ONCE() to avoid this problem.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions