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-rw-r--r--api/src/glfs-handles.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/api/src/glfs-handles.h b/api/src/glfs-handles.h
index 19c4e8f7a62..ddb11bf0bd5 100644
--- a/api/src/glfs-handles.h
+++ b/api/src/glfs-handles.h
@@ -293,6 +293,7 @@ glfs_h_access (struct glfs *fs, struct glfs_object *object, int mask) __THROW
0 : Success.
-1 : Error condition, mostly due to out of memory.
+ 'errno' is set to ENOTSUP if upcall feature is not enabled.
*/