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authorIngo Molnar <mingo@elte.hu>2006-07-03 00:24:57 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-03 15:27:04 -0700
commit2148270cd2ebe0d05e4289b7c77b1435c45481bf (patch)
treed2ad8c7579f9aecfc57dbf2cdc523e0bcaf042b1 /arch/x86_64/kernel/head64.c
parent8c64580d522542e50f2ba689316128b7fbae497b (diff)
downloadop-kernel-dev-2148270cd2ebe0d05e4289b7c77b1435c45481bf.zip
op-kernel-dev-2148270cd2ebe0d05e4289b7c77b1435c45481bf.tar.gz
[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>
Diffstat (limited to 'arch/x86_64/kernel/head64.c')
-rw-r--r--arch/x86_64/kernel/head64.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c
index e6a71c9..36647ce 100644
--- a/arch/x86_64/kernel/head64.c
+++ b/arch/x86_64/kernel/head64.c
@@ -85,6 +85,11 @@ void __init x86_64_start_kernel(char * real_mode_data)
clear_bss();
/*
+ * This must be called really, really early:
+ */
+ lockdep_init();
+
+ /*
* switch to init_level4_pgt from boot_level4_pgt
*/
memcpy(init_level4_pgt, boot_level4_pgt, PTRS_PER_PGD*sizeof(pgd_t));
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