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Merge branches 'tracing/ftrace' and 'tracing/urgent' into tracing/core
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Ingo Molnar committed Feb 11, 2009
2 parents ae216dd + 7d6d49b commit d524e03
Showing 1 changed file with 5 additions and 3 deletions.
8 changes: 5 additions & 3 deletions arch/x86/kernel/ftrace.c
Original file line number Diff line number Diff line change
Expand Up @@ -471,13 +471,15 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
"1: " _ASM_MOV " (%[parent_old]), %[old]\n"
"2: " _ASM_MOV " %[return_hooker], (%[parent_replaced])\n"
" movl $0, %[faulted]\n"
"3:\n"

".section .fixup, \"ax\"\n"
"3: movl $1, %[faulted]\n"
"4: movl $1, %[faulted]\n"
" jmp 3b\n"
".previous\n"

_ASM_EXTABLE(1b, 3b)
_ASM_EXTABLE(2b, 3b)
_ASM_EXTABLE(1b, 4b)
_ASM_EXTABLE(2b, 4b)

: [parent_replaced] "=r" (parent), [old] "=r" (old),
[faulted] "=r" (faulted)
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