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* Re: [v12 1/2] fs: New zonefs file system
@ 2020-02-07  7:18 Markus Elfring
  0 siblings, 0 replies; only message in thread
From: Markus Elfring @ 2020-02-07  7:18 UTC (permalink / raw)
  To: Damien Le Moal, Dave Chinner, linux-fsdevel, linux-xfs
  Cc: linux-kernel, Darrick J. Wong, Hannes Reinecke,
	Johannes Thumshirn, Linus Torvalds, Naohiro Aota

> > Hmmm. I'm wondering if it would be better to return -EOPNOTSUPP here
> > so that the application knows it can't do non-blocking write AIO to
> > this file.
>
> I wondered the same too. In the end, I decided to go with silently ignoring
> the flag (for now) since raw block device accesses do the same (the NOWAIT
> support is not complete and IOs may wait on free tags). I have an idea for
> fixing simply the out-of-order issuing that may result from using nowait.

I find this aspect interesting for further clarification.


> I will send a patch for that later and can then remove this.

Should another software improvement be integrated into the initial proposal?

Regards,
Markus

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2020-02-07  7:18 [v12 1/2] fs: New zonefs file system Markus Elfring

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