Re: spindown [was Re: 2.4.6-pre2, pre3 VM Behavior]

From: Rik van Riel (riel@conectiva.com.br)
Date: Sat Jun 16 2001 - 16:54:38 EST


On Sat, 16 Jun 2001, Daniel Phillips wrote:

> > Does the patch below do anything good for your laptop? ;)
>
> I'll wait for the next one ;-)

OK, here's one which isn't reversed and should work ;))

--- fs/buffer.c.orig Sat Jun 16 18:05:29 2001
+++ fs/buffer.c Sat Jun 16 18:05:15 2001
@@ -2550,7 +2550,8 @@
                            if the current bh is not yet timed out,
                            then also all the following bhs
                            will be too young. */
- if (time_before(jiffies, bh->b_flushtime))
+ if (++flushed > bdf_prm.b_un.ndirty &&
+ time_before(jiffies, bh->b_flushtime))
                                 goto out_unlock;
                 } else {
                         if (++flushed > bdf_prm.b_un.ndirty)

cheers,

Rik

--
Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

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