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authorTejun Heo <tj@kernel.org>2015-12-07 17:38:52 -0500
committerDavid S. Miller <davem@davemloft.net>2015-12-08 22:02:33 -0500
commit2a56a1fec290bf0bc4676bbf4efdb3744953a3e7 (patch)
treec02ca93b96c4fa2c8aacf24f72f63d861794e567 /net/netfilter/xt_cgroup.c
parentnetprio_cgroup: limit the maximum css->id to USHRT_MAX (diff)
downloadlinux-dev-2a56a1fec290bf0bc4676bbf4efdb3744953a3e7.tar.xz
linux-dev-2a56a1fec290bf0bc4676bbf4efdb3744953a3e7.zip
net: wrap sock->sk_cgrp_prioidx and ->sk_classid inside a struct
Introduce sock->sk_cgrp_data which is a struct sock_cgroup_data. ->sk_cgroup_prioidx and ->sk_classid are moved into it. The struct and its accessors are defined in cgroup-defs.h. This is to prepare for overloading the fields with a cgroup pointer. This patch mostly performs equivalent conversions but the followings are noteworthy. * Equality test before updating classid is removed from sock_update_classid(). This shouldn't make any noticeable difference and a similar test will be implemented on the helper side later. * sock_update_netprioidx() now takes struct sock_cgroup_data and can be moved to netprio_cgroup.h without causing include dependency loop. Moved. * The dummy version of sock_update_netprioidx() converted to a static inline function while at it. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/netfilter/xt_cgroup.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/netfilter/xt_cgroup.c b/net/netfilter/xt_cgroup.c
index a1d126f29463..54eaeb45ce99 100644
--- a/net/netfilter/xt_cgroup.c
+++ b/net/netfilter/xt_cgroup.c
@@ -42,7 +42,8 @@ cgroup_mt(const struct sk_buff *skb, struct xt_action_param *par)
if (skb->sk == NULL || !sk_fullsock(skb->sk))
return false;
- return (info->id == skb->sk->sk_classid) ^ info->invert;
+ return (info->id == sock_cgroup_classid(&skb->sk->sk_cgrp_data)) ^
+ info->invert;
}
static struct xt_match cgroup_mt_reg __read_mostly = {