From b468538d356552f0242763fe44a17b1939e8bd55 Mon Sep 17 00:00:00 2001
From: zcxsythenew <30565051+zcxsythenew@users.noreply.github.com>
Date: Fri, 27 Oct 2023 00:37:52 +0800
Subject: [PATCH] GH-111293: Fix DirEntry.inode dropping higher bits on Windows
 (GH-111294)

---
 .../Windows/2023-10-25-05-01-28.gh-issue-111293.FSsLT6.rst  | 1 +
 Modules/posixmodule.c                                       | 6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)
 create mode 100644 Misc/NEWS.d/next/Windows/2023-10-25-05-01-28.gh-issue-111293.FSsLT6.rst

diff --git a/Misc/NEWS.d/next/Windows/2023-10-25-05-01-28.gh-issue-111293.FSsLT6.rst b/Misc/NEWS.d/next/Windows/2023-10-25-05-01-28.gh-issue-111293.FSsLT6.rst
new file mode 100644
index 00000000000000..4c6b255bc44c7b
--- /dev/null
+++ b/Misc/NEWS.d/next/Windows/2023-10-25-05-01-28.gh-issue-111293.FSsLT6.rst
@@ -0,0 +1 @@
+Fix :data:`os.DirEntry.inode` dropping higher 64 bits of a file id on some filesystems on Windows.
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index f9797f6d708170..8611f8f73aff05 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -14805,6 +14805,7 @@ typedef struct {
 #ifdef MS_WINDOWS
     struct _Py_stat_struct win32_lstat;
     uint64_t win32_file_index;
+    uint64_t win32_file_index_high;
     int got_file_index;
 #else /* POSIX */
 #ifdef HAVE_DIRENT_D_TYPE
@@ -15134,11 +15135,10 @@ os_DirEntry_inode_impl(DirEntry *self)
         }
 
         self->win32_file_index = stat.st_ino;
+        self->win32_file_index_high = stat.st_ino_high;
         self->got_file_index = 1;
     }
-    static_assert(sizeof(unsigned long long) >= sizeof(self->win32_file_index),
-                  "DirEntry.win32_file_index is larger than unsigned long long");
-    return PyLong_FromUnsignedLongLong(self->win32_file_index);
+    return _pystat_l128_from_l64_l64(self->win32_file_index, self->win32_file_index_high);
 #else /* POSIX */
     static_assert(sizeof(unsigned long long) >= sizeof(self->d_ino),
                   "DirEntry.d_ino is larger than unsigned long long");