Re: [PATCH 04/10] mm: slub: add knowledge of reserve pages

From: Andrew Morton
Date: Wed Aug 08 2007 - 14:53:10 EST


On Wed, 8 Aug 2007 10:57:13 -0700 (PDT)
Christoph Lameter <clameter@xxxxxxx> wrote:

> I think in general irq context reclaim is doable. Cannot see obvious
> issues on a first superficial pass through rmap.c. The irq holdoff would
> be pretty long though which may make it unacceptable.

The IRQ holdoff could be tremendous. But if it is sufficiently infrequent
and if the worst effect is merely a network rx ring overflow then the tradeoff
might be a good one.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/