On Tue, Mar 28, 2017 at 08:05:09AM -0600, axboe@xxxxxxxxx wrote: > > Although I know this is an issue in the existing code and not something > > introduced by you: please consider using logical_to_sectors() instead of > > open-coding this function. Otherwise this patch looks fine to me. > > The downside of doing that is that we still call ilog2() twice, which > sucks. Would be faster to cache ilog2(sector_size) and use that in the > shift calculation. I suspect that gcc is smart enough to optimize it away. That beeing said while this looks like a nice cleanup this patch is just supposed to move code, so I'd rather not add the change here and leave it for a separate submission.