On Wed, Oct 23, 2019 at 11:43:33AM -0700, Ira Weiny wrote: > On Wed, Oct 23, 2019 at 09:15:46AM -0400, Theodore Y. Ts'o wrote: > > On Tue, Oct 22, 2019 at 10:44:47PM -0700, Eric Biggers wrote: > > > > > > This patch can't be fixing anything because the comparison is unsigned both > > > before and after this patch. > > > > Thanks, you're right; I had forgotten C's signed/unsigned rules for > > addition. The funny thing is the original reporter of BZ #205197 > > reported that the problem went away he tried a similar patch. > > Not trying to stick my nose in too much here but: > > What does it mean if ext4_ext_get_actual_len() to return < 0? It's not possible for it to return < 0. We probably should clean it up to make it return an unsigned int, but that's a longer-term clean-up. - Ted