ommit 67a385d9ac12e5940989362333b8fa8511e2ec37
Author: Ingo Molnar <mingo@elte.hu>
Date:   Wed Jan 9 13:31:08 2008 +0100

    x86: fix up merge conflict
    
    fix up kgdb merge conflict.
    
    Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/include/asm-x86/system.h b/include/asm-x86/system.h
index d3c225b..72bbaff 100644
--- a/include/asm-x86/system.h
+++ b/include/asm-x86/system.h
@@ -63,7 +63,9 @@ extern struct task_struct *FASTCALL(__switch_to(struct task_struct *prev,
 
 /* Save restore flags to clear handle leaking NT */
 #define switch_to(prev, next, last) \
-       asm volatile(SAVE_CONTEXT                                                   \
+       asm volatile(".globl __switch_to_begin\n\t"                     \
+            "__switch_to_begin:\n\t"                           \
+            SAVE_CONTEXT                                       \
             "movq %%rsp,%P[threadrsp](%[prev])\n\t" /* save


AK: 

Can't remember how often I reject similar patches. They usually point
to someone implementing backtraces wrong.

Anyways, the label seems to be completely unused in the current kgdb
code the change can just go completely:

% grep -r switch_to_begin *
include/asm-x86/system.h:       asm volatile(".globl __switch_to_begin\n\t"                     \
include/asm-x86/system.h:            "__switch_to_begin:\n\t"                  

-Andi
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