Re: [net-next PATCH v4 3/3] net: reserve ports for applications usingfixed port numbers

From: Cong Wang
Date: Sat Feb 20 2010 - 02:57:46 EST


Eric Dumazet wrote:
Le jeudi 18 fÃvrier 2010 Ã 00:13 +0800, Cong Wang a Ãcrit :

I don't think so, if you want to avoid race condition, you just need to
write the reserved ports before any networking application starts, IOW,
as early as possible during boot.


Sure, but I was thinking retrieving the list of reserved port by a
database query, using network :)

Anyway, I just feel your argument is not applicable.

Our kernel is capable of doing an intersection for us, we dont need
to forbid user to mark a port as 'reserved' if this port is already
blacklisted by another mechanism (for example, if this port is already
in use)


Oh, I see your points.

But this still could make people confused, like me. I think we'd better
document this.

Thanks.
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