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authorMatt Mackall <mpm@selenic.com>2008-10-09 12:41:50 -0500
committerLen Brown <len.brown@intel.com>2008-10-10 18:05:51 -0400
commitd0d0f7432c9cbd52cb2f31d499f8292b13a7ecac (patch)
treedb30e8dbb2488c6564e7a9f3059ab1b64892c120 /arch/x86/kernel/acpi
parent3fa8749e584b55f1180411ab1b51117190bac1e5 (diff)
x86: remove magic number from 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> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch/x86/kernel/acpi')
-rw-r--r--arch/x86/kernel/acpi/sleep.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 426e5d91b63..29cf3403abe 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -97,7 +97,7 @@ int acpi_save_state_mem(void)
#else /* CONFIG_64BIT */
header->trampoline_segment = setup_trampoline() >> 4;
#ifdef CONFIG_SMP
- stack_start.sp = temp_stack + 4096;
+ stack_start.sp = temp_stack + sizeof(temp_stack);
#endif
initial_code = (unsigned long)wakeup_long64;
saved_magic = 0x123456789abcdef0;