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[NETLINK]: Directly return -EINTR from netlink_dump_start()

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Now that all users of netlink_dump_start() use netlink_run_queue()
to process the receive queue, it is possible to return -EINTR from
netlink_dump_start() directly, therefore simplying the callers.

Signed-off-by: Thomas Graf <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Thomas Graf 2007-03-22 23:30:55 -07:00 • committed by David S. Miller
commit c702e8047f
6 changed files with 18 additions and 34 deletions
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7
net/netlink/af_netlink.c
View file

@ -1426,7 +1426,12 @@ int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
netlink_dump(sk);
sock_put(sk);
return 0;
/* We successfully started a dump, by returning -EINTR we
* signal the queue mangement to interrupt processing of
* any netlink messages so userspace gets a chance to read
* the results. */
return -EINTR;
}
void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err)

7
net/netlink/genetlink.c
View file

@ -323,11 +323,8 @@ static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
if (ops->dumpit == NULL)
return -EOPNOTSUPP;
err = netlink_dump_start(genl_sock, skb, nlh,
ops->dumpit, ops->done);
if (err == 0)
err = -EINTR;
return err;
return netlink_dump_start(genl_sock, skb, nlh,
ops->dumpit, ops->done);
}
if (ops->doit == NULL)