Let consumers (i.e. overlayfs) know that the content of the field sb->s_uuid is valid. Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx> --- fs/ext4/super.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 2e03a0a..98e8fb0 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3925,6 +3925,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; #endif memcpy(sb->s_uuid, es->s_uuid, sizeof(es->s_uuid)); + sb->s_iflags |= SB_I_HAVE_UUID; INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */ mutex_init(&sbi->s_orphan_lock); -- 2.7.4
