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| 10 | 10 | ||
| 11 | #ifndef SMP_CACHE_BYTES |
11 | #ifndef SMP_CACHE_BYTES |
| 12 | #define SMP_CACHE_BYTES L1_CACHE_BYTES |
12 | #define SMP_CACHE_BYTES L1_CACHE_BYTES |
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| - | 13 | #endif |
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| - | 14 | ||
| - | 15 | /* |
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| - | 16 | * __read_mostly is used to keep rarely changing variables out of frequently |
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| - | 17 | * updated cachelines. If an architecture doesn't support it, ignore the |
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| 13 | #endif |
18 | * hint. |
| 14 | 19 | */ |
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| 15 | #ifndef __read_mostly |
20 | #ifndef __read_mostly |
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| - | 21 | #define __read_mostly |
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| - | 22 | #endif |
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| - | 23 | ||
| - | 24 | /* |
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| - | 25 | * __ro_after_init is used to mark things that are read-only after init (i.e. |
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| - | 26 | * after mark_rodata_ro() has been called). These are effectively read-only, |
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| - | 27 | * but may get written to during init, so can't live in .rodata (via "const"). |
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| - | 28 | */ |
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| - | 29 | #ifndef __ro_after_init |
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| 16 | #define __read_mostly |
30 | #define __ro_after_init __attribute__((__section__(".data..ro_after_init"))) |
| 17 | #endif |
31 | #endif |
| 18 | 32 | ||
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| 19 | #ifndef ____cacheline_aligned |
33 | #ifndef ____cacheline_aligned |