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| author | Jakub Kicinski <kuba@kernel.org> | 2023-03-15 10:37:34 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-03-15 10:37:34 +0300 |
| commit | 575942a2e2d311c7f5abe17f9958abab45604cbd (patch) | |
| tree | 0611835d7b618d97f31bdc1a592542c5352b636f /include | |
| parent | 68a84a127bb07d2a47e95c808520f742c54781c7 (diff) | |
| parent | c486640aa710ddd06c13a7f7162126e1552e8842 (diff) | |
| download | linux-575942a2e2d311c7f5abe17f9958abab45604cbd.tar.xz | |
Merge branch 'ipv6-optimize-rt6_score_route'
Eric Dumazet says:
====================
ipv6: optimize rt6_score_route()
This patch series remove an expensive rwlock acquisition
in rt6_check_neigh()/rt6_score_route().
First patch adds missing annotations, and second patch implements
the optimization.
====================
Link: https://lore.kernel.org/r/20230313201732.887488-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/neighbour.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/neighbour.h b/include/net/neighbour.h index 234799ca527e..c8d39bba2a0d 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -464,7 +464,7 @@ static __always_inline int neigh_event_send_probe(struct neighbour *neigh, if (READ_ONCE(neigh->used) != now) WRITE_ONCE(neigh->used, now); - if (!(neigh->nud_state & (NUD_CONNECTED | NUD_DELAY | NUD_PROBE))) + if (!(READ_ONCE(neigh->nud_state) & (NUD_CONNECTED | NUD_DELAY | NUD_PROBE))) return __neigh_event_send(neigh, skb, immediate_ok); return 0; } |