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Message-Id: <6c6e1163d2b4833bf448f02aaf26e12053957078.1201840183.git.len.brown@intel.com>
Date: Thu, 31 Jan 2008 23:37:07 -0500
From: Len Brown <lenb@...nel.org>
To: linux-pm@...ts.linux-foundation.org
Cc: linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
"Rafael J. Wysocki" <rjw@...k.pl>, Len Brown <len.brown@...el.com>
Subject: [PATCH 36/37] Hibernation: Invoke suspend notifications after console switch
From: Rafael J. Wysocki <rjw@...k.pl>
Following the recent change in the suspend code path, switch consoles before
calling PM notifiers during hibernation.
Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
Signed-off-by: Len Brown <len.brown@...el.com>
---
kernel/power/disk.c | 17 +++++++----------
1 files changed, 7 insertions(+), 10 deletions(-)
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 53c22d9..d09da08 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -458,20 +458,13 @@ static void power_down(void)
while(1);
}
-static void unprepare_processes(void)
-{
- thaw_processes();
- pm_restore_console();
-}
-
static int prepare_processes(void)
{
int error = 0;
- pm_prepare_console();
if (freeze_processes()) {
error = -EBUSY;
- unprepare_processes();
+ thaw_processes();
}
return error;
}
@@ -491,6 +484,7 @@ int hibernate(void)
goto Unlock;
}
+ pm_prepare_console();
error = pm_notifier_call_chain(PM_HIBERNATION_PREPARE);
if (error)
goto Exit;
@@ -530,11 +524,12 @@ int hibernate(void)
swsusp_free();
}
Thaw:
- unprepare_processes();
+ thaw_processes();
Finish:
free_basic_memory_bitmaps();
Exit:
pm_notifier_call_chain(PM_POST_HIBERNATION);
+ pm_restore_console();
atomic_inc(&snapshot_device_available);
Unlock:
mutex_unlock(&pm_mutex);
@@ -603,6 +598,7 @@ static int software_resume(void)
goto Unlock;
}
+ pm_prepare_console();
error = pm_notifier_call_chain(PM_RESTORE_PREPARE);
if (error)
goto Finish;
@@ -626,11 +622,12 @@ static int software_resume(void)
printk(KERN_ERR "PM: Restore failed, recovering.\n");
swsusp_free();
- unprepare_processes();
+ thaw_processes();
Done:
free_basic_memory_bitmaps();
Finish:
pm_notifier_call_chain(PM_POST_RESTORE);
+ pm_restore_console();
atomic_inc(&snapshot_device_available);
/* For success case, the suspend path will release the lock */
Unlock:
--
1.5.4.rc5.16.gc0279
--
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