diff options
Diffstat (limited to 'net/ipv4/multipath.c')
-rw-r--r-- | net/ipv4/multipath.c | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/net/ipv4/multipath.c b/net/ipv4/multipath.c deleted file mode 100644 index 4e9ca7c76407..000000000000 --- a/net/ipv4/multipath.c +++ /dev/null | |||
@@ -1,55 +0,0 @@ | |||
1 | /* multipath.c: IPV4 multipath algorithm support. | ||
2 | * | ||
3 | * Copyright (C) 2004, 2005 Einar Lueck <elueck@de.ibm.com> | ||
4 | * Copyright (C) 2005 David S. Miller <davem@davemloft.net> | ||
5 | */ | ||
6 | |||
7 | #include <linux/module.h> | ||
8 | #include <linux/errno.h> | ||
9 | #include <linux/netdevice.h> | ||
10 | #include <linux/spinlock.h> | ||
11 | |||
12 | #include <net/ip_mp_alg.h> | ||
13 | |||
14 | static DEFINE_SPINLOCK(alg_table_lock); | ||
15 | struct ip_mp_alg_ops *ip_mp_alg_table[IP_MP_ALG_MAX + 1]; | ||
16 | |||
17 | int multipath_alg_register(struct ip_mp_alg_ops *ops, enum ip_mp_alg n) | ||
18 | { | ||
19 | struct ip_mp_alg_ops **slot; | ||
20 | int err; | ||
21 | |||
22 | if (n < IP_MP_ALG_NONE || n > IP_MP_ALG_MAX || | ||
23 | !ops->mp_alg_select_route) | ||
24 | return -EINVAL; | ||
25 | |||
26 | spin_lock(&alg_table_lock); | ||
27 | slot = &ip_mp_alg_table[n]; | ||
28 | if (*slot != NULL) { | ||
29 | err = -EBUSY; | ||
30 | } else { | ||
31 | *slot = ops; | ||
32 | err = 0; | ||
33 | } | ||
34 | spin_unlock(&alg_table_lock); | ||
35 | |||
36 | return err; | ||
37 | } | ||
38 | EXPORT_SYMBOL(multipath_alg_register); | ||
39 | |||
40 | void multipath_alg_unregister(struct ip_mp_alg_ops *ops, enum ip_mp_alg n) | ||
41 | { | ||
42 | struct ip_mp_alg_ops **slot; | ||
43 | |||
44 | if (n < IP_MP_ALG_NONE || n > IP_MP_ALG_MAX) | ||
45 | return; | ||
46 | |||
47 | spin_lock(&alg_table_lock); | ||
48 | slot = &ip_mp_alg_table[n]; | ||
49 | if (*slot == ops) | ||
50 | *slot = NULL; | ||
51 | spin_unlock(&alg_table_lock); | ||
52 | |||
53 | synchronize_net(); | ||
54 | } | ||
55 | EXPORT_SYMBOL(multipath_alg_unregister); | ||