38 	file = fopen("/proc/sys/vm/laptop_mode", "w");  in set_laptop_mode()
56 	file = fopen("/proc/acpi/ac_adapter/AC/state", "r");  in suggest_laptop_mode()
69 	file = fopen("/proc/sys/vm/laptop_mode", "r");  in suggest_laptop_mode()
88 	file = fopen("/proc/sys/kernel/nmi_watchdog", "w");  in nmi_watchdog_off()
99 	file = fopen("/proc/sys/kernel/nmi_watchdog", "r");  in suggest_nmi_watchdog()
120 	file = fopen("/sys/devices/system/clocksource/clocksource0/available_clocksource", "r");  in suggest_hpet()
145 	file = fopen("/sys/module/snd_ac97_codec/parameters/power_save", "w");  in ac97_power_on()
152 	file = fopen("/dev/dsp", "w");  in ac97_power_on()
163 	file = fopen("/sys/module/snd_ac97_codec/parameters/power_save", "r");  in suggest_ac97_powersave()
189 	file = fopen("/proc/mounts","r");  in suggest_noatime()
211 	file = fopen("/sys/devices/system/cpu/sched_mc_power_savings", "w");  in powersched_on()
225 	file = fopen("/sys/devices/system/cpu/sched_mc_power_savings","r");  in suggest_powersched()
242 	file = fopen("/proc/cpuinfo", "r");  in suggest_powersched()
274 	file = fopen("/proc/sys/vm/dirty_writeback_centisecs", "w");  in writeback_long()
286 	file = fopen("/proc/sys/vm/dirty_writeback_centisecs", "r");  in suggest_writeback_time()