Re: [PATCH] [RFC] iomap: Use FUA for pure data O_DSYNC DIO writes

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On Sat, Mar 03, 2018 at 09:53:19AM +1100, Dave Chinner wrote:
> I thought about that, but as you noticed the DAX case gets in the
> way so I didn't bother for a RFC patch.
> 
> I'll have a look at making the DAX iomap code do something similar
> with generic_write_sync() so we can simplify this high level code.

I suspect it might make sense to juse move generic_write_sync into
each of the three write routines as a prep patch before the prep
patch, which should clean everything up nicely.
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