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CONFIG_KFENCE_STATIC_KEYS: Use static keys to set up allocations

General informations

The Linux kernel configuration item CONFIG_KFENCE_STATIC_KEYS:

Help text

Use static keys (static branches) to set up KFENCE allocations. Using static keys is normally recommended, because it avoids a dynamic branch in the allocator's fast path. However, with very low sample intervals, or on systems that do not support jump labels, a dynamic branch may still be an acceptable performance trade-off.

Hardware

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