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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-27 07:50:41 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-27 07:50:41 -0800
commit490a8d70cdd77d6262c3d5815bc0b1c54a3a63f8 (patch)
treecf8feb25b7ce349b375a6bdfab8d4d83b3fc9715 /kernel
parent8c022fdd5fc1b9949bad21d26e0cb115d045c7f9 (diff)
parent5f451fe1ab5d73b987051f0d23c85216c552e163 (diff)
Merge branch 'hibern_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'hibern_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: SATA PIIX: Blacklist system that spins off disks during ACPI power off SATA Sil: Blacklist system that spins off disks during ACPI power off SATA AHCI: Blacklist system that spins off disks during ACPI power off SATA: Blacklisting of systems that spin off disks during ACPI power off DMI: Introduce dmi_first_match to make the interface more flexible Hibernation: Introduce system_entering_hibernation
Diffstat (limited to 'kernel')
-rw-r--r--kernel/power/disk.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 45e8541ab7e..432ee575c9e 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -71,6 +71,14 @@ void hibernation_set_ops(struct platform_hibernation_ops *ops)
mutex_unlock(&pm_mutex);
}
+static bool entering_platform_hibernation;
+
+bool system_entering_hibernation(void)
+{
+ return entering_platform_hibernation;
+}
+EXPORT_SYMBOL(system_entering_hibernation);
+
#ifdef CONFIG_PM_DEBUG
static void hibernation_debug_sleep(void)
{
@@ -411,6 +419,7 @@ int hibernation_platform_enter(void)
if (error)
goto Close;
+ entering_platform_hibernation = true;
suspend_console();
error = device_suspend(PMSG_HIBERNATE);
if (error) {
@@ -445,6 +454,7 @@ int hibernation_platform_enter(void)
Finish:
hibernation_ops->finish();
Resume_devices:
+ entering_platform_hibernation = false;
device_resume(PMSG_RESTORE);
resume_console();
Close: