Hi, On Fri, Aug 9, 2013 at 12:56 PM, Mike Snitzer <snit...@redhat.com> 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". -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
