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authorYOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org>2013-01-22 09:20:05 +0400
committerDavid S. Miller <davem@davemloft.net>2013-01-22 23:25:28 +0400
commit2724680bceee94eac391552863771af105a7355c (patch)
treedee52affa20715488fd361c370a4fc70ce05591c /Documentation/dmaengine.txt
parent360eb5da665566a110993c58ed2a63e98f6720bf (diff)
downloadlinux-2724680bceee94eac391552863771af105a7355c.tar.xz
neigh: Keep neighbour cache entries if number of them is small enough.
Since we have removed NCE (Neighbour Cache Entry) reference from routing entries, the only refcnt holders of an NCE are its timer (if running) and its owner table, in usual cases. As a result, neigh_periodic_work() purges NCEs over and over again even for gateways. It does not make sense to purge entries, if number of them is very small, so keep them. The minimum number of entries to keep is specified by gc_thresh1. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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