diff options
| author | Eric Dumazet <edumazet@google.com> | 2025-06-30 09:35:40 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-07-02 14:22:02 -0700 |
| commit | e3d4825124bce0d1f72187fabcf972b7c0b6cb9b (patch) | |
| tree | 7d57f406a870c95a827b3934c61a4d159d6d495a /include/net/aligned_data.h | |
| parent | 83081337419cb692eca4ee475d936b1fdcfd49f6 (diff) | |
udp: move udp_memory_allocated into net_aligned_data
____cacheline_aligned_in_smp attribute only makes sure to align
a field to a cache line. It does not prevent the linker to use
the remaining of the cache line for other variables, causing
potential false sharing.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250630093540.3052835-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net/aligned_data.h')
| -rw-r--r-- | include/net/aligned_data.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/aligned_data.h b/include/net/aligned_data.h index bedb4f86b0fe..e1a1c8aedc79 100644 --- a/include/net/aligned_data.h +++ b/include/net/aligned_data.h @@ -13,6 +13,7 @@ struct net_aligned_data { atomic64_t net_cookie ____cacheline_aligned_in_smp; #if defined(CONFIG_INET) atomic_long_t tcp_memory_allocated ____cacheline_aligned_in_smp; + atomic_long_t udp_memory_allocated ____cacheline_aligned_in_smp; #endif }; |