On 10/14/21 4:32AM, Anton Altaparmakov wrote:
Hi Christoph,
On 14 Oct 2021, at 07:28, Christoph Hellwig <hch@xxxxxx> wrote:
On Wed, Oct 13, 2021 at 07:10:13AM +0200, Christoph Hellwig wrote:
I wondered about adding a helper for looking at the size in byte units
to avoid the SECTOR_SHIFT shifts in various places. But given that
I could not come up with a good name and block devices fundamentally
work in sector size granularity I decided against that.
So it seems like the biggest review feedback is that we should have
such a helper. I think the bdev_size name is the worst as size does
not imply a particular unit. bdev_nr_bytes is a little better but I'm
not too happy. Any other suggestions or strong opinions?
bdev_byte_size() would seem to address your concerns?
bdev_nr_bytes() would work though - it is analogous to bdev_nr_sectors() after all.
No strong opinion here but I do agree with you that bdev_size() is a bad choice for sure. It is bound to cause bugs down the line when people forget what unit it is in.
I don't really mind bdev_size since it's analogous to i_size, but
bdev_nr_bytes seems good to me.
Shaggy
Best regards,
Anton
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