Re: [PATCH] Prezeroing V8

From: Christoph Lameter
Date: Thu Mar 17 2005 - 18:08:26 EST


On Thu, 17 Mar 2005, Nish Aravamudan wrote:

> > + if (system_state != SYSTEM_RUNNING)
> > + return;
> > +
> > + while (avenrun[0] >= ((unsigned long)sysctl_scrub_load << FSHIFT))
> > + schedule_timeout(30*HZ);
>
> This is a busy-loop, unless you set the state before you call
> schedule_timeout(). Additionally, you really want to sleep 30 seconds

Ahh. Missed that thanks.

> at a time? Please use msleep() or msleep_interruptible(), unless you
> expect wait-queue events.

I want to sleep 30 seconds because the system load is unlikely to change
frequently.
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