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authorEric Dumazet <edumazet@google.com>2024-02-01 17:30:31 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-07-24 08:53:20 +0200
commit4cb17b11c8af2fa9de840ffe7fc0bb712f894242 (patch)
tree3b0380d944af995f1e7698ee99d6bcee5727636d
parent496efa228f0dd58980d301e379e5561a9b612eaa (diff)
ipv6: make addrconf_wq single threaded
commit dfd2ee086a63c730022cb095576a8b3a5a752109 upstream. Both addrconf_verify_work() and addrconf_dad_work() acquire rtnl, there is no point trying to have one thread per cpu. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20240201173031.3654257-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Brett A C Sheffield <bacs@librecast.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--net/ipv6/addrconf.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 74f7f3e8d9608..f6188bd9f55ba 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -7383,7 +7383,8 @@ int __init addrconf_init(void)
if (err < 0)
goto out_addrlabel;
- addrconf_wq = create_workqueue("ipv6_addrconf");
+ /* All works using addrconf_wq need to lock rtnl. */
+ addrconf_wq = create_singlethread_workqueue("ipv6_addrconf");
if (!addrconf_wq) {
err = -ENOMEM;
goto out_nowq;