From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 08/14] netfilter: conntrack: remove GC_MAX_EVICTS break
Date: Thu, 26 Jan 2017 17:38:01 +0100 [thread overview]
Message-ID: <1485448687-6072-9-git-send-email-pablo@netfilter.org> (raw)
In-Reply-To: <1485448687-6072-1-git-send-email-pablo@netfilter.org>
From: Florian Westphal <fw@strlen.de>
Instead of breaking loop and instant resched, don't bother checking
this in first place (the loop calls cond_resched for every bucket anyway).
Suggested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/netfilter/nf_conntrack_core.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 3a073cd9fcf4..6feb5d370319 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -88,8 +88,6 @@ static __read_mostly bool nf_conntrack_locks_all;
#define GC_MAX_BUCKETS_DIV 64u
/* upper bound of scan intervals */
#define GC_INTERVAL_MAX (2 * HZ)
-/* maximum conntracks to evict per gc run */
-#define GC_MAX_EVICTS 256u
static struct conntrack_gc_work conntrack_gc_work;
@@ -979,8 +977,7 @@ static void gc_worker(struct work_struct *work)
*/
rcu_read_unlock();
cond_resched_rcu_qs();
- } while (++buckets < goal &&
- expired_count < GC_MAX_EVICTS);
+ } while (++buckets < goal);
if (gc_work->exiting)
return;
@@ -1005,7 +1002,7 @@ static void gc_worker(struct work_struct *work)
* In case we have lots of evictions next scan is done immediately.
*/
ratio = scanned ? expired_count * 100 / scanned : 0;
- if (ratio >= 90 || expired_count == GC_MAX_EVICTS) {
+ if (ratio >= 90) {
gc_work->next_gc_run = 0;
next_run = 0;
} else if (expired_count) {
--
2.1.4
next prev parent reply other threads:[~2017-01-26 16:38 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-26 16:37 [PATCH 00/14] Netfilter fixes for net Pablo Neira Ayuso
2017-01-26 16:37 ` [PATCH 01/14] netfilter: use fwmark_reflect in nf_send_reset Pablo Neira Ayuso
2017-01-26 16:37 ` [PATCH 02/14] tcp: fix mark propagation with fwmark_reflect enabled Pablo Neira Ayuso
2017-01-26 18:02 ` Eric Dumazet
2017-01-26 19:19 ` Pablo Neira Ayuso
2017-01-26 19:28 ` Eric Dumazet
2017-01-26 16:37 ` [PATCH 03/14] netfilter: nf_tables: fix spelling mistakes Pablo Neira Ayuso
2017-01-26 16:37 ` [PATCH 04/14] netfilter: rpfilter: fix incorrect loopback packet judgment Pablo Neira Ayuso
2017-01-26 16:37 ` [PATCH 05/14] netfilter: nf_tables: fix possible oops when dumping stateful objects Pablo Neira Ayuso
2017-01-26 16:37 ` [PATCH 06/14] netfilter: Fix typo in NF_CONNTRACK Kconfig option description Pablo Neira Ayuso
2017-01-26 16:38 ` [PATCH 07/14] netfilter: ipt_CLUSTERIP: fix build error without procfs Pablo Neira Ayuso
2017-01-26 16:38 ` Pablo Neira Ayuso [this message]
2017-01-26 16:38 ` [PATCH 09/14] netfilter: conntrack: refine gc worker heuristics, redux Pablo Neira Ayuso
2017-01-27 16:51 ` Nicolas Dichtel
2017-03-01 15:02 ` Nicolas Dichtel
2017-03-01 15:38 ` Pablo Neira Ayuso
2017-01-26 16:38 ` [PATCH 10/14] netfilter: nf_tables: validate the name size when possible Pablo Neira Ayuso
2017-01-26 16:38 ` [PATCH 11/14] netfilter: nft_log: restrict the log prefix length to 127 Pablo Neira Ayuso
2017-01-26 16:38 ` [PATCH 12/14] netfilter: nf_tables: fix set->nelems counting with no NLM_F_EXCL Pablo Neira Ayuso
2017-01-26 16:38 ` [PATCH 13/14] netfilter: nf_tables: deconstify walk callback function Pablo Neira Ayuso
2017-01-26 16:38 ` [PATCH 14/14] netfilter: nf_tables: bump set->ndeact on set flush Pablo Neira Ayuso
2017-01-26 17:59 ` [PATCH 00/14] Netfilter fixes for net David Miller
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