New upstream version 1.4.1upstream/1.4.1upstream

1 files changed, 8 insertions, 3 deletions

diff --git a/tests/same-inode.h b/tests/same-inode.h
index 13ae24b7..70f17b03 100644
--- a/tests/same-inode.h
+++ b/tests/same-inode.h
@@ -1,6 +1,6 @@
 /* Determine whether two stat buffers are known to refer to the same file.
 
-   Copyright (C) 2006, 2009-2024 Free Software Foundation, Inc.
+   Copyright (C) 2006, 2009-2025 Free Software Foundation, Inc.
 
    This file is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
@@ -77,12 +77,17 @@ extern "C" {
 #define SAME_INODE(a, b) PSAME_INODE (&(a), &(b))
 
 /* True if *A and *B represent the same file.  Unlike PSAME_INODE,
-   args are evaluated once and must point to struct stat.  */
+   args are evaluated once and must point to struct stat,
+   and this function works even on POSIX platforms where fstat etc. do
+   not return useful st_dev and st_ino values for shared memory
+   objects and typed memory objects.  */
 
 SAME_INODE_INLINE bool
 psame_inode (struct stat const *a, struct stat const *b)
 {
-  return PSAME_INODE (a, b);
+  return (! (S_TYPEISSHM (a) | S_TYPEISTMO (a)
+             | S_TYPEISSHM (b) | S_TYPEISTMO (b))
+          && PSAME_INODE (a, b));
 }