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

On 10/21/22 10:41, 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@deltatee.com>

Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>

-ck