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hc
2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf 
 kernel/net/netfilter/ipvs/ip_vs_ctl.c
....@@ -1802,6 +1802,7 @@
18021802 proc_do_sync_threshold(struct ctl_table *table, int write,
18031803 		       void *buffer, size_t *lenp, loff_t *ppos)
18041804 {
1805
+	struct netns_ipvs *ipvs = table->extra2;
18051806 	int *valp = table->data;
18061807 	int val[2];
18071808 	int rc;
....@@ -1811,6 +1812,7 @@
18111812 		.mode = table->mode,
18121813 	};
18131814 
1815
+	mutex_lock(&ipvs->sync_mutex);
18141816 	memcpy(val, valp, sizeof(val));
18151817 	rc = proc_dointvec(&tmp, write, buffer, lenp, ppos);
18161818 	if (write) {
....@@ -1820,6 +1822,7 @@
18201822 		else
18211823 			memcpy(valp, val, sizeof(val));
18221824 	}
1825
+	mutex_unlock(&ipvs->sync_mutex);
18231826 	return rc;
18241827 }
18251828 
....@@ -4077,6 +4080,7 @@
40774080 	ipvs->sysctl_sync_threshold[0] = DEFAULT_SYNC_THRESHOLD;
40784081 	ipvs->sysctl_sync_threshold[1] = DEFAULT_SYNC_PERIOD;
40794082 	tbl[idx].data = &ipvs->sysctl_sync_threshold;
4083
+	tbl[idx].extra2 = ipvs;
40804084 	tbl[idx++].maxlen = sizeof(ipvs->sysctl_sync_threshold);
40814085 	ipvs->sysctl_sync_refresh_period = DEFAULT_SYNC_REFRESH_PERIOD;
40824086 	tbl[idx++].data = &ipvs->sysctl_sync_refresh_period;