netdev - [PATCH net-next] ipv6: shrink struct ipv6_mc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190827070812.150106-1-edumazet@google.com>
Date:   Tue, 27 Aug 2019 00:08:12 -0700
From:   Eric Dumazet <edumazet@...gle.com>
To:     "David S . Miller" <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: [PATCH net-next] ipv6: shrink struct ipv6_mc_socklist

Remove two holes on 64bit arches, to bring the size
to one cache line exactly.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 include/net/if_inet6.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 50037913c9b191cb3793e3f072104c10c4257ff2..a01981d7108f96075b6939f4a78f14e7afe93a4e 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -89,9 +89,9 @@ struct ip6_sf_socklist {
 struct ipv6_mc_socklist {
 	struct in6_addr		addr;
 	int			ifindex;
+	unsigned int		sfmode;		/* MCAST_{INCLUDE,EXCLUDE} */
 	struct ipv6_mc_socklist __rcu *next;
 	rwlock_t		sflock;
-	unsigned int		sfmode;		/* MCAST_{INCLUDE,EXCLUDE} */
 	struct ip6_sf_socklist	*sflist;
 	struct rcu_head		rcu;
 };
-- 
2.23.0.187.g17f5b7556c-goog