Component Type: kbuild config

Description: Use kernel mem{cpy,set}() for {copy_to,clear}_user()

More info: Implement faster copy_to_user and clear_user methods for CPU cores where a 8-word STM instruction give significantly higher memory write throughput than a sequence of individual 32bit stores. A possible side effect is a slight increase in scheduling latency between threads sharing the same address space if they invoke such copy operations with large buffers. However, if the CPU data cache is using a write-allocate mode, this option is unlikely to provide any performance gain.

Build project: Kconfig (Linux kconfig) (Path: arch\arm\Kconfig )

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