netdev - Re: [PATCH 5/5] c/r: Add AF

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Message-ID: <20090804211742.GC13499@us.ibm.com>
Date:	Tue, 4 Aug 2009 16:17:42 -0500
From:	"Serge E. Hallyn" <serue@...ibm.com>
To:	Dan Smith <danms@...ibm.com>
Cc:	containers@...ts.osdl.org, Alexey Dobriyan <adobriyan@...il.com>,
	netdev@...r.kernel.org
Subject: Re: [PATCH 5/5] c/r: Add AF_UNIX support (v7)

Quoting Dan Smith (danms@...ibm.com):
> SH> Does this re-use of tmp make sense?  (It only would if
> SH> dev_alloc_skb() did a generic prealloc for any subsequent
> SH> skb_clone() which i don't think is the case)
> 
> No, this is cruft.
> 
> SH> Also, do you need any kind of lock on the queue to make this walk
> SH> safe, or do ensure below (sorry i'm slow and haven't gotten there)
> SH> that all tasks with an open fd for either end of this sock are
> SH> frozen?
> 
> Hmm, it seems that holding the lock while processing the queue isn't
> really the way to go.  Perhaps comparing the pid of the other end of
> the socket against the list in the context is best?

I don't understand.  Which pid?
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