diff options
| author | Eric Dumazet <edumazet@google.com> | 2014-07-24 06:36:50 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-10-05 14:52:23 -0700 |
| commit | 6598554879509476a47929be742b858b3a42372a (patch) | |
| tree | 69b783a1b347edb0dd2d9bb5aa2d83f3b5aef430 /kernel | |
| parent | fd29286dc5c7fa0f135ce30ca59c8c4130c87601 (diff) | |
netfilter: xt_hashlimit: perform garbage collection from process context
commit 7bd8490eef9776ced7632345df5133384b6be0fe upstream.
xt_hashlimit cannot be used with large hash tables, because garbage
collector is run from a timer. If table is really big, its possible
to hold cpu for more than 500 msec, which is unacceptable.
Switch to a work queue, and use proper scheduling points to remove
latencies spikes.
Later, we also could switch to a smoother garbage collection done
at lookup time, one bucket at a time...
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Florian Westphal <fw@strlen.de>
Cc: Patrick McHardy <kaber@trash.net>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions