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Date:   Sat, 23 May 2020 06:34:56 -0700
From:   Andi Kleen <>
To:     Anand K Mistry <>
        Alexander Shishkin <>,
        Arnaldo Carvalho de Melo <>,
        Ingo Molnar <>, Jiri Olsa <>,
        Mark Rutland <>,
        Namhyung Kim <>,
        Peter Zijlstra <>,
Subject: Re: [PATCH v3] perf record: Use an eventfd to wakeup when done

Anand K Mistry <> writes:
>  	}
> +	done_fd = eventfd(0, EFD_NONBLOCK);

This will make perf depend on a recent glibc or other library
that implements eventfd. Wouldn't surprise me if some kind
of build time check is needed for this to pass all of Arnaldo's
built tests.


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