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rtnetlink: Compute and store minimum ifinfo dump size

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The message size allocated for rtnl ifinfo dumps was limited to
a single page.  This is not enough for additional interface info
available with devices that support SR-IOV and caused a bug in
which VF info would not be displayed if more than approximately
40 VFs were created per interface.

Implement a new function pointer for the rtnl_register service that will
calculate the amount of data required for the ifinfo dump and allocate
enough data to satisfy the request.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Greg Rose
2011-06-10 01:27:09 +00:00
committed by Jeff Kirsher
parent 929dd04772
commit c7ac8679be
30 changed files with 158 additions and 90 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/decnet/dn_dev.c
+3 -3
View File
@@ -1414,9 +1414,9 @@ void __init dn_dev_init(void)
dn_dev_devices_on();
rtnl_register(PF_DECnet, RTM_NEWADDR, dn_nl_newaddr, NULL);
rtnl_register(PF_DECnet, RTM_DELADDR, dn_nl_deladdr, NULL);
rtnl_register(PF_DECnet, RTM_GETADDR, NULL, dn_nl_dump_ifaddr);
rtnl_register(PF_DECnet, RTM_NEWADDR, dn_nl_newaddr, NULL, NULL);
rtnl_register(PF_DECnet, RTM_DELADDR, dn_nl_deladdr, NULL, NULL);
rtnl_register(PF_DECnet, RTM_GETADDR, NULL, dn_nl_dump_ifaddr, NULL);
proc_net_fops_create(&init_net, "decnet_dev", S_IRUGO, &dn_dev_seq_fops);
net/decnet/dn_fib.c
+2 -2
View File
@@ -763,8 +763,8 @@ void __init dn_fib_init(void)
register_dnaddr_notifier(&dn_fib_dnaddr_notifier);
rtnl_register(PF_DECnet, RTM_NEWROUTE, dn_fib_rtm_newroute, NULL);
rtnl_register(PF_DECnet, RTM_DELROUTE, dn_fib_rtm_delroute, NULL);
rtnl_register(PF_DECnet, RTM_NEWROUTE, dn_fib_rtm_newroute, NULL, NULL);
rtnl_register(PF_DECnet, RTM_DELROUTE, dn_fib_rtm_delroute, NULL, NULL);
}
net/decnet/dn_route.c
+3 -2
View File
@@ -1841,10 +1841,11 @@ void __init dn_route_init(void)
proc_net_fops_create(&init_net, "decnet_cache", S_IRUGO, &dn_rt_cache_seq_fops);
#ifdef CONFIG_DECNET_ROUTER
rtnl_register(PF_DECnet, RTM_GETROUTE, dn_cache_getroute, dn_fib_dump);
rtnl_register(PF_DECnet, RTM_GETROUTE, dn_cache_getroute,
dn_fib_dump, NULL);
#else
rtnl_register(PF_DECnet, RTM_GETROUTE, dn_cache_getroute,
dn_cache_dump);
dn_cache_dump, NULL);
#endif
}