• Stephen Boyd's avatar
    hrtimers: Notify hrtimer users of switches to NOHZ mode · 2d0640b4
    Stephen Boyd authored
    When NOHZ=y and high res timers are disabled (via cmdline or
    Kconfig) tick_nohz_switch_to_nohz() will notify the user about
    switching into NOHZ mode. Nothing is printed for the case where
    HIGH_RES_TIMERS=y. Fix this for the HIGH_RES_TIMERS=y case by
    duplicating the printk from the low res NOHZ path in the high
    res NOHZ path.
    
    This confused me since I was thinking 'dmesg | grep -i NOHZ' would
    tell me if NOHZ was enabled, but if I have hrtimers there is
    nothing.
    Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
    Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    LKML-Reference: <1295419594-13085-1-git-send-email-sboyd@codeaurora.org>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    2d0640b4
tick-sched.c 22 KB