LU-3289 gss: Cleanup gss print statements and comments

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

diff --git a/lustre/ptlrpc/nodemap_handler.c b/lustre/ptlrpc/nodemap_handler.c
index 5f82521..10bbc49 100644 (file)
--- a/lustre/ptlrpc/nodemap_handler.c
+++ b/lustre/ptlrpc/nodemap_handler.c
@@ -831,6 +831,72 @@ out:
 EXPORT_SYMBOL(nodemap_del_range);
 
 /**
+ * set fileset on nodemap
+ * \param      name            nodemap to set fileset on
+ * \param      fileset         string containing fileset
+ * \retval     0 on success
+ *
+ * set a fileset on the named nodemap
+ */
+static int nodemap_set_fileset_helper(struct nodemap_config *config,
+                                     struct lu_nodemap *nodemap,
+                                     const char *fileset)
+{
+       int rc = 0;
+
+       /* we allow fileset = "" which means clear fileset info */
+       if (fileset == NULL || (fileset[0] != 0 && fileset[0] != '/'))
+               rc = -EINVAL;
+       else if (strlcpy(nodemap->nm_fileset, fileset,
+                        sizeof(nodemap->nm_fileset)) >=
+                sizeof(nodemap->nm_fileset))
+               rc = -ENAMETOOLONG;
+
+       return rc;
+}
+
+int nodemap_set_fileset(const char *name, const char *fileset)
+{
+       struct lu_nodemap       *nodemap = NULL;
+       int                      rc = 0;
+
+       mutex_lock(&active_config_lock);
+       nodemap = nodemap_lookup(name);
+       if (IS_ERR(nodemap)) {
+               mutex_unlock(&active_config_lock);
+               GOTO(out, rc = PTR_ERR(nodemap));
+       }
+
+       if (is_default_nodemap(nodemap))
+               rc = -EINVAL;
+       else
+               rc = nodemap_set_fileset_helper(active_config, nodemap,
+                                               fileset);
+       mutex_unlock(&active_config_lock);
+
+       nodemap_putref(nodemap);
+out:
+       return rc;
+}
+EXPORT_SYMBOL(nodemap_set_fileset);
+
+/**
+ * get fileset defined on nodemap
+ * \param      nodemap         nodemap to get fileset from
+ * \retval     fileset name, or NULL if not defined or not activated
+ *
+ * get the fileset defined on the nodemap
+ */
+char *nodemap_get_fileset(const struct lu_nodemap *nodemap)
+{
+       if (!nodemap_active || is_default_nodemap(nodemap))
+               return NULL;
+       else
+               return (char *)nodemap->nm_fileset;
+}
+EXPORT_SYMBOL(nodemap_get_fileset);
+
+/**
  * Nodemap constructor
  *
  * Creates an lu_nodemap structure and assigns sane default
@@ -923,6 +989,7 @@ struct lu_nodemap *nodemap_create(const char *name,
 
                nodemap->nm_squash_uid = default_nodemap->nm_squash_uid;
                nodemap->nm_squash_gid = default_nodemap->nm_squash_gid;
+               nodemap->nm_fileset[0] = 0;
        }
 
        return nodemap;