x86: reserve exact size of mptable (f6243239) · Commits · 戴 / test

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:

arch/x86/kernel/mpparse.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -716,10 +716,10 @@ static int __init smp_scan_config(unsigned long base, unsigned long length,

		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