[PATCH net-next 11/14] ipvs: annotate data-races around lblc_expiration and lblcr_expiration

[Jiayuan Chen <jiayuan.chen@linux.dev>]

sysctl_lblc_expiration and sysctl_lblcr_expiration are read without any
lock while their sysctl handlers update them with WRITE_ONCE(). Add
READ_ONCE() to the readers.

Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
---
 net/netfilter/ipvs/ip_vs_lblc.c  | 2 +-
 net/netfilter/ipvs/ip_vs_lblcr.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index e1111c3b27211..21bb820e02914 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -249,7 +249,7 @@ static void ip_vs_lblc_flush(struct ip_vs_service *svc)
 static int sysctl_lblc_expiration(struct ip_vs_service *svc)
 {
 #ifdef CONFIG_SYSCTL
-	return svc->ipvs->sysctl_lblc_expiration;
+	return READ_ONCE(svc->ipvs->sysctl_lblc_expiration);
 #else
 	return DEFAULT_EXPIRATION;
 #endif
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index dfb5bf83750db..33d6e30968a95 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -413,7 +413,7 @@ static void ip_vs_lblcr_flush(struct ip_vs_service *svc)
 static int sysctl_lblcr_expiration(struct ip_vs_service *svc)
 {
 #ifdef CONFIG_SYSCTL
-	return svc->ipvs->sysctl_lblcr_expiration;
+	return READ_ONCE(svc->ipvs->sysctl_lblcr_expiration);
 #else
 	return DEFAULT_EXPIRATION;
 #endif
-- 
2.43.0