r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/power/pm_test', 0x122902, 0x0)
copy_file_range(r0, &(0x7f0000000040)=0x1, r0, &(0x7f0000000080)=0x10000, 0x4, 0x0)