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SubjectRe: [RFC][PATCH 3/7] avr32: Remove finish_arch_switch()
Around Wed 29 Jul 2015 21:08:51 +0200 or thereabout, Peter Zijlstra wrote:
> Fold the tracing hook into switch_to() in order to remove
> finish_arch_switch().

AFAICT this should work, I do not have a nexus debugger to verify behavior.

> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>

Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>

> ---
> arch/avr32/include/asm/switch_to.h | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> --- a/arch/avr32/include/asm/switch_to.h
> +++ b/arch/avr32/include/asm/switch_to.h
> @@ -15,11 +15,13 @@
> */
> #ifdef CONFIG_OWNERSHIP_TRACE
> #include <asm/ocd.h>
> -#define finish_arch_switch(prev) \
> +#define ocd_switch(prev, next) \
> do { \
> ocd_write(PID, prev->pid); \
> - ocd_write(PID, current->pid); \
> + ocd_write(PID, next->pid); \
> } while(0)
> +#else
> +#define ocd_switch(prev, next)
> #endif
>
> /*
> @@ -38,6 +40,7 @@ extern struct task_struct *__switch_to(s
> struct cpu_context *);
> #define switch_to(prev, next, last) \
> do { \
> + ocd_switch(prev, next); \
> last = __switch_to(prev, &prev->thread.cpu_context + 1, \
> &next->thread.cpu_context); \
> } while (0)
--
mvh
Hans-Christian Egtvedt


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