Re: [PATCH] perf: add /proc/perf_events file for dump perf events info

[David Ahern <dsahern@gmail.com>]

On 7/5/12 7:02 AM, Jovi Zhang wrote:
>   From 91fbcca37a2c9979083f4b9a6fa9c1875fc2886f Mon Sep 17 00:00:00 2001
> From: Jovi Zhang <bookjovi@gmail.com>
> Date: Fri, 6 Jul 2012 00:05:40 +0800
> Subject: [PATCH] perf: add /proc/perf_events file for dump perf events info
>
> This new /proc/perf_events file is used for real time dump all
> perf events info in whole system wide machine, this patch also add
> a new field perf_entry in struct perf_event, for connect to
> global list perf_events_list.

Applied your patch to see if sheds light on a problem. Saw this 
compiling the kernel:

kernel/events/proc_perf_events.c: In function ‘perf_events_proc_show’:
kernel/events/proc_perf_events.c:175:5: warning: format ‘%llu’ expects 
argument of type ‘long long unsigned int’, but argument 3 has type ‘long 
int’ [-Wformat]

David