#include <linux/cpu.h>
#include <linux/resume-trace.h>
#include <linux/freezer.h>
+#include <linux/vmstat.h>
#include "power.h"
mutex_unlock(&pm_mutex);
}
+static inline void pm_finish(suspend_state_t state)
+{
+ if (pm_ops->finish)
+ pm_ops->finish(state);
+}
/**
* suspend_prepare - Do prep work before entering low-power state.
pm_prepare_console();
- error = disable_nonboot_cpus();
- if (error)
- goto Enable_cpu;
-
if (freeze_processes()) {
error = -EAGAIN;
goto Thaw;
}
- if ((free_pages = nr_free_pages()) < FREE_PAGE_NUMBER) {
+ if ((free_pages = global_page_state(NR_FREE_PAGES))
+ < FREE_PAGE_NUMBER) {
pr_debug("PM: free some memory\n");
shrink_all_memory(FREE_PAGE_NUMBER - free_pages);
if (nr_free_pages() < FREE_PAGE_NUMBER) {
}
suspend_console();
- if ((error = device_suspend(PMSG_SUSPEND))) {
+ error = device_suspend(PMSG_SUSPEND);
+ if (error) {
printk(KERN_ERR "Some devices failed to suspend\n");
- goto Finish;
+ goto Resume_devices;
}
- return 0;
- Finish:
- if (pm_ops->finish)
- pm_ops->finish(state);
+ error = disable_nonboot_cpus();
+ if (!error)
+ return 0;
+
+ enable_nonboot_cpus();
+ Resume_devices:
+ pm_finish(state);
+ device_resume();
+ resume_console();
Thaw:
thaw_processes();
- Enable_cpu:
- enable_nonboot_cpus();
pm_restore_console();
return error;
}
static void suspend_finish(suspend_state_t state)
{
+ enable_nonboot_cpus();
+ pm_finish(state);
device_resume();
resume_console();
thaw_processes();
- enable_nonboot_cpus();
- if (pm_ops && pm_ops->finish)
- pm_ops->finish(state);
pm_restore_console();
}