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On Sep 20, 2004, at 6:05 PM, YAMAMOTO Takashi wrote:

> my point is, there's no reason to make all external storage read-only.
> what you need is M_EXT_READONLY i mentioned in another mail (or 
> M_EXT_RW).
> i didn't include it in the patch just because currently there's no code
> which need it in tree (afaik).

Sure.  But "external storage is read-only unless M_CLUSTER" has been 
part of our mbuf API for some time now, and 3rd parties have written 
code that assumes this.  So, "writable non-cluster external storage" 
needs to have an explicit flag to maintain compatibility.

         -- Jason R. Thorpe <thorpej@shagadelic.org>


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