redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

net: increase frag hash size

Browse source 
Increase fragmentation hash bucket size to 1024 from old 64 elems.

After we increased the frag mem limits commit c2a93660 (net: increase
fragment memory usage limits) the hash size of 64 elements is simply
too small.  Also considering the mem limit is per netns and the hash
table is shared for all netns.

For the embedded people, note that this increase will change the hash
table/array from using approx 1 Kbytes to 16 Kbytes.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jesper Dangaard Brouer 2013-04-25 09:52:25 +00:00 committed by David S. Miller
parent f0911aaea9
commit a4c4009f4f
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
include/net/inet_frag.h
View file

@ -41,7 +41,7 @@ struct inet_frag_queue {
struct netns_frags *net;
};
#define INETFRAGS_HASHSZ 64
#define INETFRAGS_HASHSZ 1024
/* averaged:
* max_depth = default ipfrag_high_thresh / INETFRAGS_HASHSZ /