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[PATCH] lockdep: x86_64 early init

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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>
This commit is contained in:
Ingo Molnar 2006-07-03 00:24:57 -07:00 committed by Linus Torvalds
parent 8c64580d52
commit 2148270cd2
1 changed files with 5 additions and 0 deletions
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5
arch/x86_64/kernel/head64.c
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@ -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
*/