openwrt/target/linux/generic/hack-5.15/661-kernel-ct-size-the-hashtable-more-adequately.patch
John Audia 0e89ba8430 kernel: bump 5.15 to 5.15.117
Manually rebased:
	generic/backport-5.15/346-v5.18-01-Revert-ata-ahci-mvebu-Make-SATA-PHY-optional-for-Arm.patch

Removed upstreamed:
	generic/backport-5.15/830-v6.2-ata-ahci-fix-enum-constants-for-gcc-13.patch

All other patches automatically rebased.

Build system: x86_64
Build-tested: ramips/tplink_archer-a6-v3
Run-tested: ramips/tplink_archer-a6-v3

Signed-off-by: John Audia <therealgraysky@proton.me>
2023-06-16 19:44:28 +02:00

26 lines
1006 B
Diff

From 804fbb3f2ec9283f7b778e057a68bfff440a0be6 Mon Sep 17 00:00:00 2001
From: Rui Salvaterra <rsalvaterra@gmail.com>
Date: Wed, 30 Mar 2022 22:51:55 +0100
Subject: [PATCH] kernel: ct: size the hashtable more adequately
To set the default size of the connection tracking hash table, a divider of
16384 becomes inadequate for a router handling lots of connections. Divide by
2048 instead, making the default size scale better with the available RAM.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
---
net/netfilter/nf_conntrack_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -2738,7 +2738,7 @@ int nf_conntrack_init_start(void)
if (!nf_conntrack_htable_size) {
nf_conntrack_htable_size
- = (((nr_pages << PAGE_SHIFT) / 16384)
+ = (((nr_pages << PAGE_SHIFT) / 2048)
/ sizeof(struct hlist_head));
if (BITS_PER_LONG >= 64 &&
nr_pages > (4 * (1024 * 1024 * 1024 / PAGE_SIZE)))