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CONFIG_FAST_SYSCALL_XTENSA: Enable fast atomic syscalls

General informations

The Linux kernel configuration item CONFIG_FAST_SYSCALL_XTENSA:

Help text

fast_syscall_xtensa is a syscall that can make atomic operations on UP kernel when processor has no s32c1i support.

This syscall is deprecated. It may have issues when called with invalid arguments. It is provided only for backwards compatibility. Only enable it if your userspace software requires it.

If unsure, say N.



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