__PER_CPU_SEG 207 arch/x86/kernel/vsyscall_64.c asm("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG)); __PER_CPU_SEG 26 arch/x86/vdso/vgetcpu.c asm("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG));