Re: [PATCHv2 0/3] direct io alignment relax

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On Wed, May 18, 2022 at 07:02:43PM -0700, Eric Biggers wrote:
> If you're thinking about about BLKDISCARD and BLKZEROOUT, those are block device
> ioctls, so statx() doesn't seem like a great fit for them.  There is already a
> place to expose block device properties to userspace (/sys/block/$dev/).  Direct
> I/O is different because direct I/O is not just a feature of block devices but
> also of regular files, and it is affected by filesystem-level constraints.

Agreed.



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