On Wed, 2012-01-18 at 23:43 +0100, Richard Weinberger wrote:
> From: Richard Weinberger <richard@xxxxxx>
>
Missing change log.
Otherwise,
Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
-- Steve
>
> Signed-off-by: Richard Weinberger <richard@xxxxxx>
> ---
> include/linux/ring_buffer.h | 5 +++++
> kernel/trace/ring_buffer.c | 7 +++++++
> 2 files changed, 12 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
> index 67be037..5c1c29f 100644
> --- a/include/linux/ring_buffer.h
> +++ b/include/linux/ring_buffer.h
> @@ -185,4 +185,9 @@ enum ring_buffer_flags {
> RB_FL_OVERWRITE = 1 << 0,
> };
>
> +cpumask_var_t *ring_buffer_mask(struct ring_buffer *buffer);
> +
> +#define for_each_buffer_cpu(buffer, cpu) \
> + for_each_cpu(cpu, *(ring_buffer_mask(buffer)))
> +
> #endif /* _LINUX_RING_BUFFER_H */
> diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
> index f5b7b5c..a4117c5 100644
> --- a/kernel/trace/ring_buffer.c
> +++ b/kernel/trace/ring_buffer.c
> @@ -348,6 +348,7 @@ void *ring_buffer_event_data(struct ring_buffer_event *event)
> }
> EXPORT_SYMBOL_GPL(ring_buffer_event_data);
>
> +#undef for_each_buffer_cpu
> #define for_each_buffer_cpu(buffer, cpu) \
> for_each_cpu(cpu, buffer->cpumask)
>
> @@ -4139,3 +4140,9 @@ static int rb_cpu_notify(struct notifier_block *self,
> return NOTIFY_OK;
> }
> #endif
> +
> +cpumask_var_t *ring_buffer_mask(struct ring_buffer *buffer)
> +{
> + return &buffer->cpumask;
> +}
> +EXPORT_SYMBOL_GPL(ring_buffer_mask);
--
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