Re: [PATCH v2] blkdev: Replace blksize_bits() with ilog2()

From: Jens Axboe
Date: Fri May 29 2020 - 10:13:42 EST

On 5/29/20 8:11 AM, Kaitao Cheng wrote:
> There is a function named ilog2() exist which can replace blksize.
> The generated code will be shorter and more efficient on some
> architecture, such as arm64. And ilog2() can be optimized according
> to different architecture.

When you posted this last time, I said:

"I like the simplification, but do you have any results to back up
that claim? Is the generated code shorter? Runs faster?"

which you handily ignored, yet sending out a new version. I'm not
going to apply this without justification, your commit message is
handwavy at best.

Jens Axboe