netdev - Re: [RFC PATCH] xmit_compl_seq: information to reclaim vmsplice buffers

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Date:	Wed, 15 Sep 2010 21:38:32 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	therbert@...gle.com
Cc:	netdev@...r.kernel.org, sridharr@...gle.com
Subject: Re: [RFC PATCH] xmit_compl_seq: information to reclaim vmsplice
 buffers


And SIOCOUTQ doesn't work because?

It tells you how much of the current queued data hasn't
been sequentially ACK'd yet, from which you can derive
which buffers are still in-use.
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