Messages in this thread | | | Subject | Re: [PATCH 1/4] block: Move SECTORS_PER_PAGE and SECTORS_PER_PAGE_SHIFT definitions into <linux/blkdev.h> | From | "Leizhen (ThunderTown)" <> | Date | Wed, 6 May 2020 12:06:12 +0800 |
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On 2020/5/5 20:10, Matthew Wilcox wrote: > On Tue, May 05, 2020 at 07:55:40PM +0800, Zhen Lei wrote: >> +#ifndef SECTORS_PER_PAGE_SHIFT >> +#define SECTORS_PER_PAGE_SHIFT (PAGE_SHIFT - SECTOR_SHIFT) >> +#endif >> +#ifndef SECTORS_PER_PAGE >> +#define SECTORS_PER_PAGE (1 << SECTORS_PER_PAGE_SHIFT) >> #endif > > I find SECTORS_PER_PAGE_SHIFT quite hard to read. I had a quick skim > of your other patches, and it seems to me that we could replace > '<< SECTORS_PER_PAGE_SHIFT' with '* SECTORS_PER_PAGE' and it would be > more readable in every case.
OK, I will delete SECTORS_PER_PAGE_SHIFT, and replace the shift with {*|/} SECTORS_PER_PAGE if it's not suitable to be replaced by sectors_to_page()/page_to_sectors().
> > . >
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