kernelconfig_penguin
CONFIG_ARC_HAS_LLSC is not available for the default architecture x86.
Result is shown for architecture arc
depends
NOT CONFIG_ARC_CANT_LLSC

Insn: LLOCK/SCOND (efficient atomic ops)

configname: CONFIG_ARC_HAS_LLSC

Linux Kernel Configuration
└─> ARC Architecture Configuration
└─> ARC CPU Configuration
└─> Insn: LLOCK/SCOND (efficient atomic ops)