From 4b74f91ad7480d71853ae1170d065917afc426a2 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 16 Jan 2020 18:56:49 -0500
Subject: [PATCH 03/46] libext2fs: teach ext2fs_flush() to check if group
descriptors are loaded
Content-Type: text/plain
If the EXT2_FLAG_SUPER_ONLY is not set, and the group descriptors are
not loaded, ext2fs_flush[2]() will return EXT2_ET_NO_GDESC.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
---
lib/ext2fs/closefs.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/lib/ext2fs/closefs.c b/lib/ext2fs/closefs.c
index 1d4d5b7f..6814cdc3 100644
--- a/lib/ext2fs/closefs.c
+++ b/lib/ext2fs/closefs.c
@@ -293,6 +293,11 @@ errcode_t ext2fs_flush2(ext2_filsys fs, int flags)
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
+ if ((fs->flags & EXT2_FLAG_SUPER_ONLY) == 0 &&
+ !ext2fs_has_feature_journal_dev(fs->super) &&
+ fs->group_desc == NULL)
+ return EXT2_ET_NO_GDESC;
+
fs_state = fs->super->s_state;
feature_incompat = fs->super->s_feature_incompat;
--
2.35.1