From 4b74f91ad7480d71853ae1170d065917afc426a2 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o 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 Signed-off-by: Lukas Czerner --- 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