netfilter-devel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
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

  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1485448687-6072-9-git-send-email-pablo@netfilter.org \
    --to=pablo@netfilter.org \
    --cc=davem@davemloft.net \
    --cc=netdev@vger.kernel.org \
    --cc=netfilter-devel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).