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Diffstat (limited to 'fs/ocfs2/cluster/nodemanager.c')
-rw-r--r--fs/ocfs2/cluster/nodemanager.c30
1 files changed, 24 insertions, 6 deletions
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index 234f83f2897f..357f1d551771 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -573,12 +573,21 @@ static ssize_t o2nm_cluster_attr_idle_timeout_ms_write(
ret = o2nm_cluster_attr_write(page, count, &val);
if (ret > 0) {
- if (val <= cluster->cl_keepalive_delay_ms) {
+ if (cluster->cl_idle_timeout_ms != val
+ && o2net_num_connected_peers()) {
+ mlog(ML_NOTICE,
+ "o2net: cannot change idle timeout after "
+ "the first peer has agreed to it."
+ " %d connected peers\n",
+ o2net_num_connected_peers());
+ ret = -EINVAL;
+ } else if (val <= cluster->cl_keepalive_delay_ms) {
mlog(ML_NOTICE, "o2net: idle timeout must be larger "
"than keepalive delay\n");
- return -EINVAL;
+ ret = -EINVAL;
+ } else {
+ cluster->cl_idle_timeout_ms = val;
}
- cluster->cl_idle_timeout_ms = val;
}
return ret;
@@ -599,12 +608,21 @@ static ssize_t o2nm_cluster_attr_keepalive_delay_ms_write(
ret = o2nm_cluster_attr_write(page, count, &val);
if (ret > 0) {
- if (val >= cluster->cl_idle_timeout_ms) {
+ if (cluster->cl_keepalive_delay_ms != val
+ && o2net_num_connected_peers()) {
+ mlog(ML_NOTICE,
+ "o2net: cannot change keepalive delay after"
+ " the first peer has agreed to it."
+ " %d connected peers\n",
+ o2net_num_connected_peers());
+ ret = -EINVAL;
+ } else if (val >= cluster->cl_idle_timeout_ms) {
mlog(ML_NOTICE, "o2net: keepalive delay must be "
"smaller than idle timeout\n");
- return -EINVAL;
+ ret = -EINVAL;
+ } else {
+ cluster->cl_keepalive_delay_ms = val;
}
- cluster->cl_keepalive_delay_ms = val;
}
return ret;