From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Serge E. Hallyn" Subject: Re: [PATCH 5/5] c/r: Add AF_UNIX support (v7) Date: Tue, 4 Aug 2009 16:17:42 -0500 Message-ID: <20090804211742.GC13499@us.ibm.com> References: <1249331463-11887-1-git-send-email-danms@us.ibm.com> <1249331463-11887-6-git-send-email-danms@us.ibm.com> <20090804205241.GF10275@us.ibm.com> <878whzl2cs.fsf@caffeine.danplanet.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <878whzl2cs.fsf@caffeine.danplanet.com> Sender: netdev-owner@vger.kernel.org To: Dan Smith Cc: containers@lists.osdl.org, Alexey Dobriyan , netdev@vger.kernel.org List-Id: containers.vger.kernel.org Quoting Dan Smith (danms@us.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?