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authorEric Dumazet <dada1@cosmosbay.com>2005-07-05 15:00:32 -0700
committerDavid S. Miller <davem@davemloft.net>2005-07-05 15:00:32 -0700
commitbb1d23b02657f494dff295f6cdd1f29df30fa61e (patch)
tree59c170cb94d2f65a0717ea67e169b3e2e22be11e /net/decnet/dn_fib.c
parent424c4b70cc4ff3930ee36a2ef7b204e4d704fd26 (diff)
downloadlinux-stericsson-bb1d23b02657f494dff295f6cdd1f29df30fa61e.tar.gz
[IPV4]: Bug fix in rt_check_expire()
- rt_check_expire() fixes (an overflow occured if size of the hash was >= 65536) reminder of the bugfix: The rt_check_expire() has a serious problem on machines with large route caches, and a standard HZ value of 1000. With default values, ie ip_rt_gc_interval = 60*HZ = 60000 ; the loop count : for (t = ip_rt_gc_interval << rt_hash_log; t >= 0; overflows (t is a 31 bit value) as soon rt_hash_log is >= 16 (65536 slots in route cache hash table). In this case, rt_check_expire() does nothing at all Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/decnet/dn_fib.c')
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