From: Eric Dumazet <dada1@cosmosbay.com>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Subject: [PATCH 1/5] NET : Introduce union in struct dst_entry to hold 'next' pointer
Date: Thu, 08 Feb 2007 22:33:09 +0100 [thread overview]
Message-ID: <45CB9715.5000509@cosmosbay.com> (raw)
In-Reply-To: <20070207.165213.98418769.davem@davemloft.net>
[-- Attachment #1: Type: text/plain, Size: 304 bytes --]
This patch introduces an anonymous union to nicely express the fact that all
objects inherited from struct dst_entry should access to the generic 'next'
pointer but with appropriate type verification.
This patch is a prereq before following patches.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
[-- Attachment #2: introduce_union_in_dst_entry.patch --]
[-- Type: text/plain, Size: 458 bytes --]
--- linux-2.6.20/include/net/dst.h 2007-02-08 21:06:15.000000000 +0100
+++ linux-2.6.20-ed/include/net/dst.h 2007-02-08 21:07:21.000000000 +0100
@@ -37,7 +37,12 @@ struct sk_buff;
struct dst_entry
{
- struct dst_entry *next;
+ union {
+ struct dst_entry *next;
+ struct rtable *rt_next;
+ struct rt6_info *rt6_next;
+ struct dn_route *dn_next;
+ };
atomic_t __refcnt; /* client references */
int __use;
struct dst_entry *child;
prev parent reply other threads:[~2007-02-08 21:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-08 0:42 Fw: [PATCH 0/5] [XFRM,PFKEYV2]: MIGRATE support (take 2) Shinta Sugimoto
2007-02-08 0:52 ` David Miller
2007-02-08 21:32 ` [PATCH 0/5] NET Improve layering of structs dst_entry/rtable/rt6_info/dn_route to get less dcache footprint Eric Dumazet
2007-02-10 1:31 ` David Miller
2007-02-10 8:17 ` Eric Dumazet
2007-02-08 21:33 ` Eric Dumazet [this message]
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