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  1. 22 6月, 2015 1 次提交
  3. 08 6月, 2015 1 次提交
    • F
      fib_trie: coding style: Use pointer after check · f38b24c9
      由 Firo Yang 提交于 
      As Alexander Duyck pointed out that:
struct tnode {
        ...
        struct key_vector kv[1];
}
The kv[1] member of struct tnode is an arry that refernced by
a null pointer will not crash the system, like this:
struct tnode *p = NULL;
struct key_vector *kv = p->kv;
As such p->kv doesn't actually dereference anything, it is simply a
means for getting the offset to the array from the pointer p.

This patch make the code more regular to avoid making people feel
odd when they look at the code.
Signed-off-by: NFiro Yang <firogm@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f38b24c9
  5. 27 5月, 2015 1 次提交
    • D
      ipv4: Fix fib_trie.c build, missing linux/vmalloc.h include. · ffa915d0
      由 David S. Miller 提交于 
      We used to get this indirectly I supposed, but no longer do.

Either way, an explicit include should have been done in the
first place.

   net/ipv4/fib_trie.c: In function '__node_free_rcu':
>> net/ipv4/fib_trie.c:293:3: error: implicit declaration of function 'vfree' [-Werror=implicit-function-declaration]
      vfree(n);
      ^
   net/ipv4/fib_trie.c: In function 'tnode_alloc':
>> net/ipv4/fib_trie.c:312:3: error: implicit declaration of function 'vzalloc' [-Werror=implicit-function-declaration]
      return vzalloc(size);
      ^
>> net/ipv4/fib_trie.c:312:3: warning: return makes pointer from integer without a cast
   cc1: some warnings being treated as errors
Reported-by: Nkbuild test robot <fengguang.wu@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      ffa915d0
  7. 23 5月, 2015 1 次提交
  9. 15 5月, 2015 1 次提交
  11. 13 5月, 2015 1 次提交
  13. 04 4月, 2015 2 次提交
  15. 24 3月, 2015 1 次提交
  17. 13 3月, 2015 1 次提交
    • A
      fib_trie: Provide a deterministic order for fib_alias w/ tables merged · 0b65bd97
      由 Alexander Duyck 提交于 
      This change makes it so that we should always have a deterministic ordering
for the main and local aliases within the merged table when two leaves
overlap.

So for example if we have a leaf with a key of 192.168.254.0.  If we
previously added two aliases with a prefix length of 24 from both local and
main the first entry would be first and the second would be second.  When I
was coding this I had added a WARN_ON should such a situation occur as I
wasn't sure how likely it would be.  However this WARN_ON has been
triggered so this is something that should be addressed.

With this patch the ordering of the aliases is as follows.  First they are
sorted on prefix length, then on their table ID, then tos, and finally
priority.  This way what we end up doing is essentially interleaving the
two tables on what used to be leaf_info structure boundaries.

Fixes: 0ddcf43d ("ipv4: FIB Local/MAIN table collapse")
Reported-by: NEric Dumazet <edumazet@google.com>
Signed-off-by: NAlexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      0b65bd97
  19. 12 3月, 2015 2 次提交
    • A
      fib_trie: Only display main table in /proc/net/route · 654eff45
      由 Alexander Duyck 提交于 
      When we merged the tries for local and main I had overlooked the iterator
for /proc/net/route.  As a result it was outputting both local and main
when the two tries were merged.

This patch resolves that by only providing output for aliases that are
actually in the main trie.  As a result we should go back to the original
behavior which I assume will be necessary to maintain legacy support.

Fixes: 0ddcf43d ("ipv4: FIB Local/MAIN table collapse")
Signed-off-by: NAlexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      654eff45
    • A
      ipv4: FIB Local/MAIN table collapse · 0ddcf43d
      由 Alexander Duyck 提交于 
      This patch is meant to collapse local and main into one by converting
tb_data from an array to a pointer.  Doing this allows us to point the
local table into the main while maintaining the same variables in the
table.

As such the tb_data was converted from an array to a pointer, and a new
array called data is added in order to still provide an object for tb_data
to point to.

In order to track the origin of the fib aliases a tb_id value was added in
a hole that existed on 64b systems.  Using this we can also reverse the
merge in the event that custom FIB rules are enabled.

With this patch I am seeing an improvement of 20ns to 30ns for routing
lookups as long as custom rules are not enabled, with custom rules enabled
we fall back to split tables and the original behavior.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      0ddcf43d
  21. 11 3月, 2015 2 次提交
  23. 10 3月, 2015 1 次提交
  25. 07 3月, 2015 10 次提交
  27. 06 3月, 2015 3 次提交
  29. 05 3月, 2015 8 次提交
  31. 28 2月, 2015 4 次提交