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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2025-08-11 15:37:45 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2025-08-11 15:37:45 +0300 |
| commit | 08c51f5bddc81c8c97c1eb11861b0dc009e5ccd8 (patch) | |
| tree | e40424bafb75c8661afbdb55cfd52d7e0c133023 /include/net/aligned_data.h | |
| parent | 1bf30a45653d14b0d88b5ca3c72e0ecf030d9c88 (diff) | |
| parent | 8f5ae30d69d7543eee0d70083daf4de8fe15d585 (diff) | |
| download | linux-08c51f5bddc81c8c97c1eb11861b0dc009e5ccd8.tar.xz | |
Merge drm/drm-next into drm-misc-n
Updating drm-misc-next to the state of v6.17-rc1. Begins a new release
cycle.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'include/net/aligned_data.h')
| -rw-r--r-- | include/net/aligned_data.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/net/aligned_data.h b/include/net/aligned_data.h new file mode 100644 index 000000000000..e1a1c8aedc79 --- /dev/null +++ b/include/net/aligned_data.h @@ -0,0 +1,22 @@ +/* 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 */ |
