* Francis Deslauriers (fdesl...@gmail.com) wrote:
> Signed-off-by: Francis Deslauriers <fdesl...@gmail.com>
> Reviewed-by: Raphaël Beamonte <raphael.beamo...@polymtl.ca>
> ---
> arch/x86/mm/fault.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
> index 2b97525..f41a5a0 100644
> --- a/arch/x86/mm/fault.c
> +++ b/arch/x86/mm/fault.c
> @@ -20,6 +20,9 @@
> #include <asm/fixmap.h> /* VSYSCALL_START
> */
> #include <asm/context_tracking.h> /* exception_enter(), ... */
>
> +#define CREATE_TRACE_POINTS
> +#include <trace/events/fault.h> /* trace_page_fault_*(), ...
> */
> +
> /*
> * Page fault error code bits:
> *
> @@ -1183,7 +1186,9 @@ good_area:
> * make sure we exit gracefully rather than endlessly redo
> * the fault:
> */
> + trace_page_fault_entry(regs, address, write);
> fault = handle_mm_fault(mm, vma, address, flags);
> + trace_page_fault_exit(fault);
If you look at the lttng 0.x instrumentation, I think there are other
tracepoints in get user pages too ?
Thanks,
Mathieu
>
> if (unlikely(fault & (VM_FAULT_RETRY|VM_FAULT_ERROR))) {
> if (mm_fault_error(regs, error_code, address, fault))
> --
> 1.7.10.4
>
>
> _______________________________________________
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> lttng-dev@lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
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