Re: don't use ->bd_inode to access the block device size

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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.

Best regards,

	Anton
-- 
Anton Altaparmakov <anton at tuxera.com> (replace at with @)
Lead in File System Development, Tuxera Inc., http://www.tuxera.com/
Linux NTFS maintainer




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]

  Powered by Linux