Hi, On Fri, Aug 9, 2013 at 12:56 PM, Mike Snitzer <snitzer@xxxxxxxxxx> wrote: > This reverts commit f3002134158092178be81339ec5a22ff80e6c308. > > div64_u64_rem was removed because there were no other users. In the light of this discussion https://lkml.org/lkml/2013/8/30/417 we will have more users of div64_u64_rem For example code from ext4_mb_find_by_goal() function uses function do_div() with divisor sbi->s_stripe that has "unsigned long" type. do_div() silently truncates the type to 32bits and do_div() returns incorrect result (or crash if lower 32bits are zero). It should be either replaced with div64_u64_rem() posted here or with just "a % b". -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
