x86: reserve exact size of mptable
Impact: save a bit of RAM
Get the exact size for the reserve_bootmem() call.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <49AE4922.605@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index ae9060c..e819240 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -716,10 +716,10 @@
if (!reserve)
return 1;
- reserve_bootmem_generic(virt_to_phys(mpf), PAGE_SIZE,
+ reserve_bootmem_generic(virt_to_phys(mpf), sizeof(*mpf),
BOOTMEM_DEFAULT);
if (mpf->physptr) {
- unsigned long size = PAGE_SIZE;
+ unsigned long size = get_mpc_size(mpf->physptr);
#ifdef CONFIG_X86_32
/*
* We cannot access to MPC table to compute