On Sat, Aug 17, 2013 at 06:37:46PM -0700, Paul E. McKenney wrote: > From: Borislav Petkov <[email protected]> > > CONFIG_RCU_FAST_NO_HZ can increase grace-period durations by up to > a factor of four, which can result in long suspend and resume times. > Thus, this commit temporarily switches to expedited grace periods when > suspending the box and return to normal settings when resuming. > > [ paulmck: This also papers over an audio/irq bug, but hopefully that will > be fixed soon. ] > > Signed-off-by: Borislav Petkov <[email protected]> > Signed-off-by: Paul E. McKenney <[email protected]>
This patch still seems like a hack, and there *ought* to be a better general solution to avoid excessive grace-period latency. Nonetheless, in the absence of such a solution, Reviewed-by: Josh Triplett <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
