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Re: [PATCH v11 14/28] tracing: Add hist trigger support for clearing a trace

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  Re: [PATCH v11 14/28] tracing: Add hist trigger support for clearing  a trace Namhyung Kim <namhyung@kernel.org> - 2015-11-03 09:50 +0100

#1261306 — Re: [PATCH v11 14/28] tracing: Add hist trigger support for clearing a trace

On Thu, Oct 22, 2015 at 01:14:18PM -0500, Tom Zanussi wrote:
> Allow users to append 'clear' to an existing trigger in order to have
> the hash table cleared.

Same as the previous comment: It'd be better not creating a new hist
if given hist doesn't exist.

Thanks,
Namhyung


> 
> This expands the hist trigger syntax from this:
>     # echo hist:keys=xxx:vals=yyy:sort=zzz.descending:pause/cont \
>            [ if filter] > event/trigger
> 
> to this:
> 
>     # echo hist:keys=xxx:vals=yyy:sort=zzz.descending:pause/cont/clear \
>           [ if filter] > event/trigger
> 
> Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
> Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
>
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