aligned_data.h

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2#ifndef _NET_ALIGNED_DATA_H
 3#define _NET_ALIGNED_DATA_H
 4
 5#include <linux/atomic.h>
 6#include <linux/types.h>
 7
 8/* Structure holding cacheline aligned fields on SMP builds.
 9 * Each field or group should have an ____cacheline_aligned_in_smp
10 * attribute to ensure no accidental false sharing can happen.
11 */
12struct net_aligned_data {
13	atomic64_t	net_cookie ____cacheline_aligned_in_smp;
14#if defined(CONFIG_INET)
15	atomic_long_t tcp_memory_allocated ____cacheline_aligned_in_smp;
16	atomic_long_t udp_memory_allocated ____cacheline_aligned_in_smp;
17#endif
18};
19
20extern struct net_aligned_data net_aligned_data;
21
22#endif /* _NET_ALIGNED_DATA_H */