Re: [RFC][PATCH 0/4] VM deadlock prevention -v4
From: Rik van Riel
Date: Mon Aug 14 2006 - 08:19:20 EST
Evgeniy Polyakov wrote:
On Sun, Aug 13, 2006 at 05:42:47PM -0700, Daniel Phillips (phillips@xxxxxxxxxx) wrote:
As for sk_buff cow break, we need to look at which network paths do it
(netfilter obviously, probably others) and decide whether we just want
to declare that the feature breaks network block IO, or fix the feature
so it plays well with reserve accounting.
I would suggest to consider skb cow (cloning) as a must.
That should not be any problem, since skb's (including cowed ones)
are short lived anyway. Allocating a little bit more memory is
fine when we have a guarantee that the memory will be freed again
What is important? What you want to be true, or what is true?
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