Re: [PATCH 3/5] iomap: simplify iomap_init() with PAGE_SECTORS

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On Fri, Apr 21, 2023 at 09:14:00PM +0100, Matthew Wilcox wrote:
> On Fri, Apr 21, 2023 at 12:58:05PM -0700, Luis Chamberlain wrote:
> > Just use the PAGE_SECTORS generic define. This produces no functional
> > changes. While at it use left shift to simplify this even further.
> 
> How is FOO << 2 simpler than FOO * 4?
> 
> > -	return bioset_init(&iomap_ioend_bioset, 4 * (PAGE_SIZE / SECTOR_SIZE),
> > +	return bioset_init(&iomap_ioend_bioset, PAGE_SECTORS << 2,

We could just do:


-	return bioset_init(&iomap_ioend_bioset, 4 * (PAGE_SIZE / SECTOR_SIZE),
+	return bioset_init(&iomap_ioend_bioset, 4 * PAGE_SECTORS,

The shift just seemed optimal if we're just going to change it.

  Luis




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