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Subject[PATCH 56/85] x86: trim ACPI sleep stack buffer
From: Matt Mackall <mpm@selenic.com>

x86_64 SMP suspend to RAM uses a 10k temporary stack for saving the
kernel state, but only 4k of it is used. Shrink it to 4k.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
arch/x86/kernel/acpi/sleep.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 29cf340..55d10cb 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -21,7 +21,7 @@ unsigned long acpi_realmode_flags;
static unsigned long acpi_realmode;

#if defined(CONFIG_SMP) && defined(CONFIG_64BIT)
-static char temp_stack[10240];
+static char temp_stack[4096];
#endif

/**
--
1.5.5.1


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