LU-5092 nodemap: save nodemaps to targets for caching

[fs/lustre-release.git] / lustre / ptlrpc / nodemap_handler.c

diff --git a/lustre/ptlrpc/nodemap_handler.c b/lustre/ptlrpc/nodemap_handler.c
index 2086246..59b1734 100644 (file)
--- a/lustre/ptlrpc/nodemap_handler.c
+++ b/lustre/ptlrpc/nodemap_handler.c
@@ -1399,9 +1399,13 @@ void nodemap_config_dealloc(struct nodemap_config *config)
 }
 EXPORT_SYMBOL(nodemap_config_dealloc);
 
 }
 EXPORT_SYMBOL(nodemap_config_dealloc);
 

-static int nm_hash_list_cb(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-                          struct hlist_node *hnode,
-                          void *nodemap_list_head)
+/*
+ * callback for cfs_hash_for_each_safe used to convert a nodemap hash to a
+ * nodemap list, generally for locking purposes as a hash cb can't sleep.
+ */
+int nm_hash_list_cb(struct cfs_hash *hs, struct cfs_hash_bd *bd,
+                   struct hlist_node *hnode,
+                   void *nodemap_list_head)

 {
        struct lu_nodemap *nodemap;
 
 {
        struct lu_nodemap *nodemap;