Commit c5566903 authored by Jan Kara's avatar Jan Kara
Browse files

udf: Skip parent dir link count update if corrupted 



If the parent directory link count is too low (likely directory inode
corruption), just skip updating its link count as if it goes to 0 too
early it can cause unexpected issues.

Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent ac6f4202

fs/udf/namei.c

+5 −1
Original line number Diff line number Diff line
@@ -517,7 +517,11 @@ static int udf_rmdir(struct inode *dir, struct dentry *dentry) 
			 inode->i_nlink);

	clear_nlink(inode);

	inode->i_size = 0;

	if (dir->i_nlink >= 3)

		inode_dec_link_count(dir);

	else

		udf_warn(inode->i_sb, "parent dir link count too low (%u)\n",

			 dir->i_nlink);

	udf_add_fid_counter(dir->i_sb, true, -1);

	inode_set_mtime_to_ts(dir,

			      inode_set_ctime_to_ts(dir, inode_set_ctime_current(inode)));