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authorIngo Molnar <mingo@elte.hu>2009-09-19 11:27:32 +0200
committerIngo Molnar <mingo@elte.hu>2009-09-19 11:28:41 +0200
commit929bf0d0156562ce631728b6fa53d68004d456d2 (patch)
tree739063990a8077b29ef97e69d73bce94573daae4 /kernel/power/hibernate.c
parentdef0a9b2573e00ab0b486cb5382625203ab4c4a6 (diff)
parent202c4675c55ddf6b443c7e057d2dff6b42ef71aa (diff)
Merge branch 'linus' into perfcounters/core
Merge reason: Bring in tracing changes we depend on. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/power/hibernate.c')
-rw-r--r--kernel/power/hibernate.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 81d2e7464893..04b3a83d686f 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -298,8 +298,8 @@ int hibernation_snapshot(int platform_mode)
if (error)
return error;
- /* Free memory before shutting down devices. */
- error = swsusp_shrink_memory();
+ /* Preallocate image memory before shutting down devices. */
+ error = hibernate_preallocate_memory();
if (error)
goto Close;
@@ -315,6 +315,10 @@ int hibernation_snapshot(int platform_mode)
/* Control returns here after successful restore */
Resume_devices:
+ /* We may need to release the preallocated image pages here. */
+ if (error || !in_suspend)
+ swsusp_free();
+
dpm_resume_end(in_suspend ?
(error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE);
resume_console();
@@ -460,11 +464,11 @@ int hibernation_platform_enter(void)
error = hibernation_ops->prepare();
if (error)
- goto Platofrm_finish;
+ goto Platform_finish;
error = disable_nonboot_cpus();
if (error)
- goto Platofrm_finish;
+ goto Platform_finish;
local_irq_disable();
sysdev_suspend(PMSG_HIBERNATE);
@@ -476,7 +480,7 @@ int hibernation_platform_enter(void)
* We don't need to reenable the nonboot CPUs or resume consoles, since
* the system is going to be halted anyway.
*/
- Platofrm_finish:
+ Platform_finish:
hibernation_ops->finish();
dpm_suspend_noirq(PMSG_RESTORE);
@@ -578,7 +582,10 @@ int hibernate(void)
goto Thaw;
error = hibernation_snapshot(hibernation_mode == HIBERNATION_PLATFORM);
- if (in_suspend && !error) {
+ if (error)
+ goto Thaw;
+
+ if (in_suspend) {
unsigned int flags = 0;
if (hibernation_mode == HIBERNATION_PLATFORM)
@@ -590,8 +597,8 @@ int hibernate(void)
power_down();
} else {
pr_debug("PM: Image restored successfully.\n");
- swsusp_free();
}
+
Thaw:
thaw_processes();
Finish: