Commit 2148270c authored Jul 03, 2006 by Ingo Molnar Committed by Linus Torvalds Jul 03, 2006

[PATCH] lockdep: x86_64 early init



x86_64 uses spinlocks very early - earlier than start_kernel().  So call
lockdep_init() from the arch setup code.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 8c64580d

arch/x86_64/kernel/head64.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -84,6 +84,11 @@ void __init x86_64_start_kernel(char * real_mode_data)
		asm volatile("lidt %0" :: "m" (idt_descr));
		clear_bss();

		/*
		* This must be called really, really early:
		*/
		lockdep_init();

		/*
		* switch to init_level4_pgt from boot_level4_pgt
		*/