Re: [PATCH 14/20] block: remove the nr_sects field in struct hd_struct

[Christoph Hellwig <hch@xxxxxx>]

On Fri, Nov 20, 2020 at 03:59:56PM +0000, Matthew Wilcox wrote:
> > Exactly.  In theory we could skip it for 64-bit, but as updating the
> > size isn't a fast path, and struct block_device isn't super size critical
> > I'd rather keep the same code for 32 vs 64-bit builds.
> 
> Is it better to switch to i_size_write() / i_size_read()?

I think we've stopped updating the size from contexts that can't block,
so it is worth pursuing. I'd rather do it after this series is done
and merged, though.