Re: [PATCH] block: shift with PAGE_SHIFT instead of dividing with PAGE_SIZE
From: Bart Van Assche <bvanassche@acm.org>
Date: 2023-02-22 15:27:46
On 2/22/23 06:34, Pankaj Raghav wrote:
No functional change. Division will be costly, especially in the hot path (page_is_mergeable() and bio_copy_user_iov())
Although the change looks fine to me, is there any compiler for which this patch makes a difference? I would expect that a compiler performs this optimization even without this patch. Thanks, Bart.