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    SubjectRe: [tip:timers/core] timerfd: Allow timers to be cancelled when clock was set
    On Wed, May 11, 2011 at 12:23, Peter Zijlstra <> wrote:
    > On Mon, 2011-05-02 at 19:44 +0000, tip-bot for Thomas Gleixner wrote:
    >> Commit-ID:  99ee5315dac6211e972fa3f23bcc9a0343ff58c4
    >> Gitweb:
    >> Author:     Thomas Gleixner <>
    >> AuthorDate: Wed, 27 Apr 2011 14:16:42 +0200
    >> Committer:  Thomas Gleixner <>
    >> CommitDate: Mon, 2 May 2011 21:39:15 +0200
    >> timerfd: Allow timers to be cancelled when clock was set
    >> Some applications must be aware of clock realtime being set
    >> backward. A simple example is a clock applet which arms a timer for
    >> the next minute display. If clock realtime is set backward then the
    >> applet displays a stale time for the amount of time which the clock
    >> was set backwards. Due to that applications poll the time because we
    >> don't have an interface.
    > Shouldn't that clock applet use CLOCK_MONOTONIC for the timer anyway?

    Like: Hey let's meet at the bar 5 hours after bootup? :)

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