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authorEric Dumazet <eric.dumazet@gmail.com>2011-12-21 15:47:16 -0500
committerDavid S. Miller <davem@davemloft.net>2011-12-21 15:47:16 -0500
commit9f28a2fc0bd77511f649c0a788c7bf9a5fd04edb (patch)
treeea154ab2f82d422b1d6ed835c89acdb16b47d4f7 /arch
parentb4949b84567f3ae1227d076fc95bbd8efea06506 (diff)
downloadlinux-9f28a2fc0bd77511f649c0a788c7bf9a5fd04edb.tar.bz2
ipv4: reintroduce route cache garbage collector
Commit 2c8cec5c10b (ipv4: Cache learned PMTU information in inetpeer) removed IP route cache garbage collector a bit too soon, as this gc was responsible for expired routes cleanup, releasing their neighbour reference. As pointed out by Robert Gladewitz, recent kernels can fill and exhaust their neighbour cache. Reintroduce the garbage collection, since we'll have to wait our neighbour lookups become refcount-less to not depend on this stuff. Reported-by: Robert Gladewitz <gladewitz@gmx.de> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
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