[PATCH 2/3] Hibernation: Invoke suspend notifications after console switch
STALE6834d
From: Rafael J. Wysocki <hidden>
Date: 2008-01-11 00:25:21
From: Rafael J. Wysocki <redacted> Following the recent change in the suspend code path, switch consoles before calling PM notifiers during hibernation. Signed-off-by: Rafael J. Wysocki <redacted> --- kernel/power/disk.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) Index: linux-2.6/kernel/power/disk.c ===================================================================
--- linux-2.6.orig/kernel/power/disk.c
+++ linux-2.6/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: