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authorJohn Fastabend <john.r.fastabend@intel.com>2012-07-20 10:39:25 +0000
committerDavid S. Miller <davem@davemloft.net>2012-07-22 12:44:01 -0700
commit406a3c638ce8b17d9704052c07955490f732c2b8 (patch)
treedb759dfccc6c09196773d0cc1ec260a7a4e9db07 /net/core/sock.c
parent0690899b4d4501b3505be069b9a687e68ccbe15b (diff)
downloadop-kernel-dev-406a3c638ce8b17d9704052c07955490f732c2b8.zip
op-kernel-dev-406a3c638ce8b17d9704052c07955490f732c2b8.tar.gz
net: netprio_cgroup: rework update socket logic
Instead of updating the sk_cgrp_prioidx struct field on every send this only updates the field when a task is moved via cgroup infrastructure. This allows sockets that may be used by a kernel worker thread to be managed. For example in the iscsi case today a user can put iscsid in a netprio cgroup and control traffic will be sent with the correct sk_cgrp_prioidx value set but as soon as data is sent the kernel worker thread isssues a send and sk_cgrp_prioidx is updated with the kernel worker threads value which is the default case. It seems more correct to only update the field when the user explicitly sets it via control group infrastructure. This allows the users to manage sockets that may be used with other threads. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/sock.c')
-rw-r--r--net/core/sock.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/core/sock.c b/net/core/sock.c
index 24039ac..2676a88 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1180,12 +1180,12 @@ void sock_update_classid(struct sock *sk)
}
EXPORT_SYMBOL(sock_update_classid);
-void sock_update_netprioidx(struct sock *sk)
+void sock_update_netprioidx(struct sock *sk, struct task_struct *task)
{
if (in_interrupt())
return;
- sk->sk_cgrp_prioidx = task_netprioidx(current);
+ sk->sk_cgrp_prioidx = task_netprioidx(task);
}
EXPORT_SYMBOL_GPL(sock_update_netprioidx);
#endif
@@ -1215,7 +1215,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
atomic_set(&sk->sk_wmem_alloc, 1);
sock_update_classid(sk);
- sock_update_netprioidx(sk);
+ sock_update_netprioidx(sk, current);
}
return sk;
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