Re: [PATCH 2/5] iomap: add per-iomap_iter private data

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On Thu, May 05, 2022 at 08:41:26AM -0700, Darrick J. Wong wrote:
> > +	 */
> > +	iomi.private = iocb->private;
> > +	WRITE_ONCE(iocb->private, NULL);
> 
> Do we need to transfer it back after the bio completes?  Or is it a
> feature that iocb->private changes to the bio?

No need to transfer it back.  It ist just a creative way to pass private
data in.  Initially I just added yet another argument to iomap_dio_rw,
and maybe I should just go back to that to make the things easier to
follow.



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