Re: [PATCH 1/7] tracing, mm: Record pfn instead of pointer to struct page

[Steven Rostedt]

On Fri, 27 Mar 2015 11:08:01 +0900
Namhyung Kim <namhyung@xxxxxxxxxx> wrote:

> The struct page is opaque for userspace tools, so it'd be better to save
> pfn in order to identify page frames.
> 
> The textual output of $debugfs/tracing/trace file remains unchanged and
> only raw (binary) data format is changed - but thanks to libtraceevent,
> userspace tools which deal with the raw data (like perf and trace-cmd)
> can parse the format easily.  So impact on the userspace will also be
> minimal.
> 
> Based-on-patch-by: Joonsoo Kim <js1304@xxxxxxxxx>
> Acked-by: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
> Cc: linux-mm@xxxxxxxxx
> Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
> ---


Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx>

-- Steve
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