Re: [RFC v1][PATCH]page_fault retry with NOPAGE_RETRY
From: Andrew Morton
Date: Sun Nov 23 2008 - 13:25:38 EST
On Sun, 23 Nov 2008 10:18:44 +0100 Ingo Molnar <mingo@xxxxxxx> wrote:
> * Ying Han <yinghan@xxxxxxxxxx> wrote:
>
> > page fault retry with NOPAGE_RETRY
>
> Interesting patch.
<a grey call stirs>
ahhh... I thought this all sounded familiar. It surfaced a couple of
years ago, and this was my summary of the intent at the time:
http://lkml.indiana.edu/hypermail/linux/kernel/0609.1/2106.html
It all went round and round for a while, but I don't think anything got
merged. In fact I can't even find Ben's original little spufs/cell
NOPAGE_RETRY code in the tree, an I thought we merged that. Confused.
The questions are, of course: does this new code address the issues
which were raised at that time?
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