On Fri, Oct 04, 2019 at 12:05:47AM +0200, Jan Kara wrote: > When number of free space in the journal is very low, the arithmetic in > jbd2_log_space_left() could underflow resulting in very high number of > free blocks and thus triggering assertion failure in transaction commit > code complaining there's not enough space in the journal: > > J_ASSERT(journal->j_free > 1); > > Properly check for the low number of free blocks. > > CC: stable@xxxxxxxxxxxxxxx > Signed-off-by: Jan Kara <jack@xxxxxxx> Looks good, you can add: Reviewed-by: Theodore Ts'o <tytso@xxxxxxx>
