From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- kernel/power/poweroff.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 kernel/power/poweroff.c (limited to 'kernel/power/poweroff.c') diff --git a/kernel/power/poweroff.c b/kernel/power/poweroff.c new file mode 100644 index 00000000..d5235937 --- /dev/null +++ b/kernel/power/poweroff.c @@ -0,0 +1,46 @@ +/* + * poweroff.c - sysrq handler to gracefully power down machine. + * + * This file is released under the GPL v2 + */ + +#include +#include +#include +#include +#include +#include +#include + +/* + * When the user hits Sys-Rq o to power down the machine this is the + * callback we use. + */ + +static void do_poweroff(struct work_struct *dummy) +{ + kernel_power_off(); +} + +static DECLARE_WORK(poweroff_work, do_poweroff); + +static void handle_poweroff(int key) +{ + /* run sysrq poweroff on boot cpu */ + schedule_work_on(cpumask_first(cpu_online_mask), &poweroff_work); +} + +static struct sysrq_key_op sysrq_poweroff_op = { + .handler = handle_poweroff, + .help_msg = "powerOff", + .action_msg = "Power Off", + .enable_mask = SYSRQ_ENABLE_BOOT, +}; + +static int pm_sysrq_init(void) +{ + register_sysrq_key('o', &sysrq_poweroff_op); + return 0; +} + +subsys_initcall(pm_sysrq_init); -- cgit