val=$(do_facet $mds "procfile=/proc/fs/jbd/$dev/info;
[ -f \\\$procfile ] || procfile=/proc/fs/jbd2/$dev/info;
[ -f \\\$procfile ] || procfile=/proc/fs/jbd2/${dev}\:\\\*/info;
val=$(do_facet $mds "procfile=/proc/fs/jbd/$dev/info;
[ -f \\\$procfile ] || procfile=/proc/fs/jbd2/$dev/info;
[ -f \\\$procfile ] || procfile=/proc/fs/jbd2/${dev}\:\\\*/info;