From: Matt Mackall <mpm@selenic.com>
Date: Thu, 9 Oct 2008 16:56:21 +0000 (-0500)
Subject: x86: trim ACPI sleep stack buffer
X-Git-Tag: v2.6.28-rc1~26^2~14^2~11
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=5000cadcf3188e935dae28c4fc7e24639704ea55;p=linux-2.6-omap-h63xx.git

x86: trim ACPI sleep stack buffer

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>
---

diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 29cf3403abe..55d10cbe65b 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
 
 /**