]> www.pilppa.org Git - linux-2.6-omap-h63xx.git/commit
nohz: disable tick_nohz_kick_tick() for now
authorThomas Gleixner <tglx@linutronix.de>
Mon, 10 Nov 2008 12:20:23 +0000 (13:20 +0100)
committerThomas Gleixner <tglx@apollo.(none)>
Mon, 10 Nov 2008 21:39:27 +0000 (22:39 +0100)
commitae99286b4f1be7788f2d6947c66a91dbd6351eec
treea403ffaeaad1cb38afa79e2cca40ecc00ea694ab
parentee5f80a993539490a07477ff2526bf62c503fbb4
nohz: disable tick_nohz_kick_tick() for now

Impact: nohz powersavings and wakeup regression

commit fb02fbc14d17837b4b7b02dbb36142c16a7bf208 (NOHZ: restart tick
device from irq_enter()) causes a serious wakeup regression.

While the patch is correct it does not take into account that spurious
wakeups happen on x86. A fix for this issue is available, but we just
revert to the .27 behaviour and let long running softirqs screw
themself.

Disable it for now.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
kernel/time/tick-sched.c