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    SubjectRe: [PATCH] perf tools: enable close-on-exec flag on perf file descriptor
    On Mon, Jan 06, 2014 at 11:51:25AM +0100, Yann Droneaud wrote:
    > In a previous patch [1][2], flag PERF_FLAG_FD_CLOEXEC was
    > added to perf_event_open(2) syscall to allows userspace
    > to enable close-on-exec behavor atomically when creating
    > the file descriptor.
    >
    > This patch makes perf tools use the new flag.
    >
    > Beware that perf tools compiled with the new flag won't work
    > on older kernel which do not support flag PERF_FLAG_FD_CLOEXEC.

    I think we should enhance the api probe routines (perf_do_probe_api)
    to detect that, than just bypass us from running on older kernels

    jirka


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