diff options
author | Tejun Heo <tj@kernel.org> | 2015-12-07 23:38:52 +0100 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2015-12-09 04:02:33 +0100 |
commit | 2a56a1fec290bf0bc4676bbf4efdb3744953a3e7 (patch) | |
tree | c02ca93b96c4fa2c8aacf24f72f63d861794e567 /net/core | |
parent | netprio_cgroup: limit the maximum css->id to USHRT_MAX (diff) | |
download | linux-2a56a1fec290bf0bc4676bbf4efdb3744953a3e7.tar.xz linux-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 'net/core')
-rw-r--r-- | net/core/dev.c | 3 | ||||
-rw-r--r-- | net/core/netclassid_cgroup.c | 4 | ||||
-rw-r--r-- | net/core/netprio_cgroup.c | 3 | ||||
-rw-r--r-- | net/core/scm.c | 4 | ||||
-rw-r--r-- | net/core/sock.c | 15 |
5 files changed, 10 insertions, 19 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index e5c395473eba..8f705fcedb94 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2929,7 +2929,8 @@ static void skb_update_prio(struct sk_buff *skb) struct netprio_map *map = rcu_dereference_bh(skb->dev->priomap); if (!skb->priority && skb->sk && map) { - unsigned int prioidx = skb->sk->sk_cgrp_prioidx; + unsigned int prioidx = + sock_cgroup_prioidx(&skb->sk->sk_cgrp_data); if (prioidx < map->priomap_len) skb->priority = map->priomap[prioidx]; diff --git a/net/core/netclassid_cgroup.c b/net/core/netclassid_cgroup.c index 2e4df84c34a1..e60ded46b3ac 100644 --- a/net/core/netclassid_cgroup.c +++ b/net/core/netclassid_cgroup.c @@ -62,8 +62,8 @@ static int update_classid_sock(const void *v, struct file *file, unsigned n) struct socket *sock = sock_from_file(file, &err); if (sock) - sock->sk->sk_classid = (u32)(unsigned long)v; - + sock_cgroup_set_classid(&sock->sk->sk_cgrp_data, + (unsigned long)v); return 0; } diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c index 2b9159b7a28a..de42aa7f6c77 100644 --- a/net/core/netprio_cgroup.c +++ b/net/core/netprio_cgroup.c @@ -223,7 +223,8 @@ static int update_netprio(const void *v, struct file *file, unsigned n) int err; struct socket *sock = sock_from_file(file, &err); if (sock) - sock->sk->sk_cgrp_prioidx = (u32)(unsigned long)v; + sock_cgroup_set_prioidx(&sock->sk->sk_cgrp_data, + (unsigned long)v); return 0; } diff --git a/net/core/scm.c b/net/core/scm.c index 8a1741b14302..14596fb37172 100644 --- a/net/core/scm.c +++ b/net/core/scm.c @@ -289,8 +289,8 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm) /* Bump the usage count and install the file. */ sock = sock_from_file(fp[i], &err); if (sock) { - sock_update_netprioidx(sock->sk); - sock_update_classid(sock->sk); + sock_update_netprioidx(&sock->sk->sk_cgrp_data); + sock_update_classid(&sock->sk->sk_cgrp_data); } fd_install(new_fd, get_file(fp[i])); } diff --git a/net/core/sock.c b/net/core/sock.c index 7965ef487375..947741dc43fa 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1393,17 +1393,6 @@ static void sk_prot_free(struct proto *prot, struct sock *sk) module_put(owner); } -#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO) -void sock_update_netprioidx(struct sock *sk) -{ - if (in_interrupt()) - return; - - sk->sk_cgrp_prioidx = task_netprioidx(current); -} -EXPORT_SYMBOL_GPL(sock_update_netprioidx); -#endif - /** * sk_alloc - All socket objects are allocated here * @net: the applicable net namespace @@ -1432,8 +1421,8 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority, sock_net_set(sk, net); atomic_set(&sk->sk_wmem_alloc, 1); - sock_update_classid(sk); - sock_update_netprioidx(sk); + sock_update_classid(&sk->sk_cgrp_data); + sock_update_netprioidx(&sk->sk_cgrp_data); } return sk; |