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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2022-12-12 10:47:03 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2022-12-12 10:47:03 -0800 |
| commit | e291c116f60f3c1ca98090f0f8e7c77e658562fb (patch) | |
| tree | 2fbe810f2a6f8b29f1cdaefd87b24debbfa0ec07 /include/linux/cache.h | |
| parent | 8c9a59939deb4bfafdc451100c03d1e848b4169b (diff) | |
| parent | c3991107a28a5ad0bd90660ca3bbf8c2c220ea98 (diff) | |
Merge branch 'next' into for-linus
Prepare input updates for 6.2 merge window.
Diffstat (limited to 'include/linux/cache.h')
| -rw-r--r-- | include/linux/cache.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/cache.h b/include/linux/cache.h index d742c57eaee5..5da1bbd96154 100644 --- a/include/linux/cache.h +++ b/include/linux/cache.h @@ -85,4 +85,17 @@ #define cache_line_size() L1_CACHE_BYTES #endif +/* + * Helper to add padding within a struct to ensure data fall into separate + * cachelines. + */ +#if defined(CONFIG_SMP) +struct cacheline_padding { + char x[0]; +} ____cacheline_internodealigned_in_smp; +#define CACHELINE_PADDING(name) struct cacheline_padding name +#else +#define CACHELINE_PADDING(name) +#endif + #endif /* __LINUX_CACHE_H */ |