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    SubjectRe: [PATCH 1/5] ring_buffer: Export for_each_buffer_cpu()
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    On Wed, 2012-01-18 at 23:43 +0100, Richard Weinberger wrote:
    > From: Richard Weinberger <richard@nod.at>
    >

    Missing change log.


    Otherwise,

    Acked-by: Steven Rostedt <rostedt@goodmis.org>

    -- Steve

    >
    > Signed-off-by: Richard Weinberger <richard@nod.at>
    > ---
    > 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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