| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| #ifndef _NET_ALIGNED_DATA_H |
| #define _NET_ALIGNED_DATA_H |
| |
| #include <linux/atomic.h> |
| #include <linux/types.h> |
| |
| /* Structure holding cacheline aligned fields on SMP builds. |
| * Each field or group should have an ____cacheline_aligned_in_smp |
| * attribute to ensure no accidental false sharing can happen. |
| */ |
| 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 |
| }; |
| |
| extern struct net_aligned_data net_aligned_data; |
| |
| #endif /* _NET_ALIGNED_DATA_H */ |
