[PATCH v1 net 12/16] tcp: Mark sysctl_tcp_low_latency obsolete.

[Kuniyuki Iwashima]

Since commit b2fb4f54ecd4 ("tcp: uninline tcp_prequeue()"),
sysctl_tcp_low_latency is no longer used.  However, to mark
it safe and finally remove proc_dointvec(), this patch changes
handler to a lockless variant.

Signed-off-by: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx>
---
 net/ipv4/sysctl_net_ipv4.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index b14931ca5c85..0287d55f9230 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -507,11 +507,12 @@ static struct ctl_table ipv4_table[] = {
 		.proc_handler	= proc_doulongvec_minmax_lockless,
 	},
 	{
+		/* obsolete */
 		.procname	= "tcp_low_latency",
 		.data		= &sysctl_tcp_low_latency,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec
+		.proc_handler	= proc_dointvec_lockless,
 	},
 #ifdef CONFIG_NETLABEL
 	{
-- 
2.30.2