diff options
Diffstat (limited to 'drivers/xen/manage.c')
| -rw-r--r-- | drivers/xen/manage.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index 0b5366b..caa3969 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -9,6 +9,7 @@ #include <linux/stop_machine.h> #include <linux/freezer.h> #include <linux/syscore_ops.h> +#include <linux/export.h> #include <xen/xen.h> #include <xen/xenbus.h> @@ -92,7 +93,6 @@ static int xen_suspend(void *data) if (!si->cancelled) { xen_irq_resume(); - xen_console_resume(); xen_timer_resume(); } @@ -108,16 +108,17 @@ static void do_suspend(void) shutting_down = SHUTDOWN_SUSPEND; -#ifdef CONFIG_PREEMPT - /* If the kernel is preemptible, we need to freeze all the processes - to prevent them from being in the middle of a pagetable update - during suspend. */ err = freeze_processes(); if (err) { - printk(KERN_ERR "xen suspend: freeze failed %d\n", err); + pr_err("%s: freeze processes failed %d\n", __func__, err); goto out; } -#endif + + err = freeze_kernel_threads(); + if (err) { + pr_err("%s: freeze kernel threads failed %d\n", __func__, err); + goto out_thaw; + } err = dpm_suspend_start(PMSG_FREEZE); if (err) { @@ -148,6 +149,10 @@ static void do_suspend(void) err = stop_machine(xen_suspend, &si, cpumask_of(0)); + /* Resume console as early as possible. */ + if (!si.cancelled) + xen_console_resume(); + dpm_resume_noirq(si.cancelled ? PMSG_THAW : PMSG_RESTORE); if (err) { @@ -168,10 +173,8 @@ out_resume: clock_was_set(); out_thaw: -#ifdef CONFIG_PREEMPT thaw_processes(); out: -#endif shutting_down = SHUTDOWN_INVALID; } #endif /* CONFIG_HIBERNATE_CALLBACKS */ |