Re: ksm: initialize rmap values directly and make them const

[Matthew Wilcox]

On Fri, Feb 06, 2026 at 03:22:54PM +0800, xu.xin16@xxxxxxxxxx wrote:
> make them const to make code more robust. Besides, since KSM folios are always
> order-0, so folio_nr_pages(KSM folio) is always 1, so the line:
> 
> 	"pgoff_end = pgoff_start + folio_nr_pages(folio) - 1;"
> 
> becomes directly:
> 
> 	"pgoff_end = pgoff_start;"

How do you know KSM folios will always be order 0?  I don't.  NAK this
change.