Re: [PATCHv2 00/10] ext4: Improve FC trace events

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On Thu, 10 Mar 2022 21:28:54 +0530
Ritesh Harjani <riteshh@xxxxxxxxxxxxx> wrote:

> Note:- I still couldn't figure out how to expose EXT4_FC_REASON_MAX in patch-2
> which (I think) might be (only) needed by trace-cmd or perf record for trace_ext4_fc_stats.
> But it seems "cat /sys/kernel/debug/tracing/trace_pipe" gives the right output
> for ext4_fc_stats trace event (as shown below).
> 
> So with above reasoning, do you think we should take these patches in?
> And we can later see how to provide EXT4_FC_REASON_MAX definition available to
> libtraceevent?

I don't see EXT4_FC_REASON_MAX being used in the TP_printk(). If it isn't
used there, it doesn't need to be exposed. Or did I miss something?

-- Steve



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