Re: [PATCH 2/6] fs: Add FS_XFLAG_ATOMICWRITES flag

[Christoph Hellwig]

On Mon, Feb 05, 2024 at 12:58:30PM +0000, John Garry wrote:
> To me that sounds like "try to use DAX for IO, and, if not possible, fall 
> back on some other method" - is that reality of what that flag does?

Yes.  Of course for a fallback on XFS we need Darrick's swapext log
item.  Which would be good to have..