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authorRafael J. Wysocki <rjw@sisk.pl>2008-10-26 20:56:30 +0100
committerLen Brown <len.brown@intel.com>2008-12-19 04:40:35 -0500
commitba84ed9546e91348fdf3ff2bff859b0ee53b407a (patch)
treef9ea9370416744de2fa80dbf7a4c25a2589c6a41 /arch
parentb69edc76539be6a4aa39a22f85365fd4a3b3b9d2 (diff)
downloadblackbird-op-linux-ba84ed9546e91348fdf3ff2bff859b0ee53b407a.tar.gz
blackbird-op-linux-ba84ed9546e91348fdf3ff2bff859b0ee53b407a.zip
ACPI hibernate: Introduce new kernel parameter acpi_sleep=s4_nonvs
On some machines it may be necessary to disable the saving/restoring of the ACPI NVS memory region during hibernation/resume. For this purpose, introduce new ACPI kernel command line option acpi_sleep=s4_nonvs. Based on a patch by Zhang Rui. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Nigel Cunningham <nigel@tuxonice.net> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/acpi/sleep.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 806b4e9051b4..707c1f6f95fa 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -159,6 +159,8 @@ static int __init acpi_sleep_setup(char *str)
#endif
if (strncmp(str, "old_ordering", 12) == 0)
acpi_old_suspend_ordering();
+ if (strncmp(str, "s4_nonvs", 8) == 0)
+ acpi_s4_no_nvs();
str = strchr(str, ',');
if (str != NULL)
str += strspn(str, ", \t");
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