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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
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3
net/ipv6/ip6_fib.c
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@@ -1586,7 +1586,8 @@ int __init fib6_init(void)
if (ret)
goto out_kmem_cache_create;
ret = __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib);
ret = __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib,
NULL);
if (ret)
goto out_unregister_subsys;
out: