I've found one more batch of long-lived ext4 issues, most of them are lost brelse + two leaks on rollback in ext4_fill_super. Oldest one was found in 2.6.23, last one -- in 4.18. Vasily Averin (7): ext4: lost brelse in __ext4_read_dirblock() ext4: possible sbi->s_group_desc leak in ext4_fill_super ext4: lost release of s_journal_flag_rwsem on rollback in ext4_fill_super ext4: lost brelse in ext4_xattr_get_block() ext4: bs.bh cleanup before re-using in ext4_xattr_block_find() ext4: lost brelse in ext4_xattr_move_to_block() ext4: lost brelse in ext4_expand_extra_isize_ea() fs/ext4/namei.c | 1 + fs/ext4/super.c | 4 +++- fs/ext4/xattr.c | 15 ++++++++++++--- 3 files changed, 16 insertions(+), 4 deletions(-) -- 2.17.1