Introduce close_pack_index to permit replacement

diff --git a/sha1_file.c b/sha1_file.c
index c23cc5e6e19a2d8c9a92161b0a5d62a5ef8e920b..4e82654d7c1636f22854f50219ee97bc4027c144 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -606,6 +606,14 @@ void unuse_pack(struct pack_window **w_cursor)
        }
 }
 
+void close_pack_index(struct packed_git *p)
+{
+       if (p->index_data) {
+               munmap((void *)p->index_data, p->index_size);
+               p->index_data = NULL;
+       }
+}
+
 /*
  * This is used by git-repack in case a newly created pack happens to
  * contain the same set of objects as an existing one.  In that case
@@ -627,8 +635,7 @@ void free_pack_by_name(const char *pack_name)
                        close_pack_windows(p);
                        if (p->pack_fd != -1)
                                close(p->pack_fd);
-                       if (p->index_data)
-                               munmap((void *)p->index_data, p->index_size);
+                       close_pack_index(p);
                        free(p->bad_object_sha1);
                        *pp = p->next;
                        free(p);