On 07/18/14 00:34, Guenter Roeck wrote:
+ * do_kernel_restart - Execute kernel restart handler call chain
+ * Calls functions registered with register_restart_handler.
+ * Expected to be called from machine_restart as last step of the restart
+ * sequence.
+ * Restarts the system immediately if a restart handler function has been
+ * registered. Otherwise does nothing.
+void do_kernel_restart(char *cmd)
+ blocking_notifier_call_chain(&restart_handler_list, reboot_mode, cmd);
Has this been tested with scheduling while atomic checking
(CONFIG_DEBUG_ATOMIC_SLEEP) or lockdep (CONFIG_PROVE_LOCKING)? ARM would
call this with irqs disabled and blocking_notifier_call_chain() would
spit out a warning when it tries to down_read() on it's semaphore. This
should probably be an atomic notifier chain instead.