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fs: dlm: cleanup lock order

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This patch cleanups the lock order to hold at first the close_lock and
then held the nodes_srcu read lock. Probably it will never be a problem
as nodes_srcu is only a read lock preventing the node pointer getting
freed.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
Alexander Aring 2023-08-01 14:09:44 -04:00 committed by David Teigland
parent c84c47333a
commit 643f5cfa61
1 changed files with 2 additions and 2 deletions
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4
fs/dlm/midcomms.c
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@ -1489,12 +1489,12 @@ int dlm_midcomms_close(int nodeid)
synchronize_srcu(&nodes_srcu);
idx = srcu_read_lock(&nodes_srcu);
mutex_lock(&close_lock);
idx = srcu_read_lock(&nodes_srcu);
node = nodeid2node(nodeid, 0);
if (!node) {
mutex_unlock(&close_lock);
srcu_read_unlock(&nodes_srcu, idx);
mutex_unlock(&close_lock);
return dlm_lowcomms_close(nodeid);
}