Re: [PATCH v11 1/9] mm: allow multiple error returns in try_grab_page()

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On Fri, Oct 21, 2022 at 11:41:08AM -0600, Logan Gunthorpe wrote:
> In order to add checks for P2PDMA memory into try_grab_page(), expand
> the error return from a bool to an int/error code. Update all the
> callsites handle change in usage.
> 
> Also remove the WARN_ON_ONCE() call at the callsites seeing there
> already is a WARN_ON_ONCE() inside the function if it fails.
> 
> Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>

Looks good:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>




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