Re: [PATCH] ring_buffer: allocate buffer page pointer

[Ingo Molnar]

* Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> 
> The current method of overlaying the page frame as the buffer page pointer
> can be very dangerous and limits our ability to do other things with
> a page from the buffer, like send it off to disk.
> 
> This patch allocates the buffer_page instead of overlaying the page's
> page frame. The use of the buffer_page has hardly changed due to this.
> 
> Signed-off-by: Steven Rostedt <srostedt@xxxxxxxxxx>
> ---
>  kernel/trace/ring_buffer.c |   54 ++++++++++++++++++++++++++-------------------
>  1 file changed, 32 insertions(+), 22 deletions(-)

applied to tip/tracing/ftrace, with the extended changlog below - i 
think this commit warrants that extra mention.

	Ingo

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