On Mon, 2007-03-05 at 12:29 +0100, Ingo Molnar wrote: > Subject: [patch] paravirt: remove NO_IDLE_HZ dependency > From: Ingo Molnar <[EMAIL PROTECTED]> > > PARAVIRT forces CONFIG_NO_HZ off - this is bad and prevents sane > paravirtual guests like KVM from being able to use dynticks-enabled > Linux guests. Remove this. Vmi-timer needs to be updated properly to > make use of dynticks. > > furthermore, remove the mistaken turning on of NO_IDLE_HZ on > x86+PARAVIRT kernels, it's an obsolete, limited form of dynticks. > > must-have for v2.6.21. > > Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
Acked-by: Thomas Gleixner <[EMAIL PROTECTED]> > --- > arch/i386/Kconfig | 11 +---------- > 1 file changed, 1 insertion(+), 10 deletions(-) > > Index: linux/arch/i386/Kconfig > =================================================================== > --- linux.orig/arch/i386/Kconfig > +++ linux/arch/i386/Kconfig > @@ -224,7 +224,7 @@ config PARAVIRT > > config VMI > bool "VMI Paravirt-ops support" > - depends on PARAVIRT && !NO_HZ > + depends on PARAVIRT > default y > help > VMI provides a paravirtualized interface to multiple hypervisors > @@ -1291,12 +1291,3 @@ config X86_TRAMPOLINE > config KTIME_SCALAR > bool > default y > - > -config NO_IDLE_HZ > - bool > - depends on PARAVIRT > - default y > - help > - Switches the regular HZ timer off when the system is going idle. > - This helps a hypervisor detect that the Linux system is idle, > - reducing the overhead of idle systems. - 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/
