ext4: correct the checking of quota files before moving extents

[ Upstream commit a2e5a3c ]

The move extent operation should return -EOPNOTSUPP if any of the inodes
is a quota inode, rather than requiring both to be quota inodes.

Fixes: 02749a4 ("ext4: add ext4_is_quota_file()")
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Message-ID: <20251013015128.499308-2-yi.zhang@huaweicloud.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: zhangyi089

fs/ext4/move_extent.c

@@ -487,7 +487,7 @@ mext_check_arguments(struct inode *orig_inode,
 		return -ETXTBSY;
 	}
 
-	if (ext4_is_quota_file(orig_inode) && ext4_is_quota_file(donor_inode)) {
+	if (ext4_is_quota_file(orig_inode) || ext4_is_quota_file(donor_inode)) {
 		ext4_debug("ext4 move extent: The argument files should not be quota files [ino:orig %lu, donor %lu]\n",
 			orig_inode->i_ino, donor_inode->i_ino);
 		return -EOPNOTSUPP;