Re: [PATCH 3/6] net: add support for per-paged-fragment destructors
From: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Date: 2012-01-06 01:24:29
On Thu, Jan 05, 2012 at 05:13:41PM +0000, Ian Campbell wrote:
Entities which care about the complete lifecycle of pages which they inject into the network stack via an skb paged fragment can choose to set this destructor in order to receive a callback when the stack is really finished with a page (including all clones, retransmits, pull-ups etc etc).
[...]
quoted hunk ↗ jump to hunk
--- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h@@ -143,9 +143,16 @@ struct sk_buff; typedef struct skb_frag_struct skb_frag_t; +struct skb_frag_destructor { + atomic_t ref; + int (*destroy)(void *data); + void *data; +}; +
[...] What happened to removal of 'data' field from this structure? ref: http://www.spinics.net/lists/netdev/msg179050.html Best Regards, Michał Mirosław