Subject: Re: 100 network limit

From: "David S. Miller" <[email-masked]>
Date: Thu, 28 Aug 2003 16:41:43 -0700

On Thu, 28 Aug 2003 14:46:39 -0700
Ben Greear <[email-masked]> wrote:

> Since you can rename devices, that might not work.  A long time ago
> I hashed the devices, both by name and by index...that gives good
> lookup performance, at least.  As for create-time issues, that is
> definately slow path, and even searching linearly 4 or 8k devices is
> not a big deal (in my opinion).  So, why not make the hard-coded 100
> limit be more like 8196 or something really large?  (It could still
> be adjustable if needed.)

Right, it's also not going to fix the locking problems.

I would suggest two things:

1) Ben's hashing patch for lookups.

2) RCU'ing read access to the device list.