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Subject: Re: [PATCH 1/3] sgi-gru: Convert put_page() to get_user_page*()
To:     Bharath Vedartham <linux.bhar@gmail.com>, <arnd@arndb.de>,
        <sivanich@sgi.com>, <gregkh@linuxfoundation.org>
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From:   John Hubbard <jhubbard@nvidia.com>
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On 7/21/19 8:58 AM, Bharath Vedartham wrote:
> For pages that were retained via get_user_pages*(), release those pages
> via the new put_user_page*() routines, instead of via put_page().
>=20
> This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
> ("mm: introduce put_user_page*(), placeholder versions").
>=20
> Cc: Ira Weiny <ira.weiny@intel.com>
> Cc: John Hubbard <jhubbard@nvidia.com>
> Cc: J=C3=A9r=C3=B4me Glisse <jglisse@redhat.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Dimitri Sivanich <sivanich@sgi.com>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-mm@kvack.org
> Signed-off-by: Bharath Vedartham <linux.bhar@gmail.com>
> ---
>  drivers/misc/sgi-gru/grufault.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>=20

Reviewed-by: John Hubbard <jhubbard@nvidia.com>

thanks,
--=20
John Hubbard
NVIDIA

> diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufa=
ult.c
> index 4b713a8..61b3447 100644
> --- a/drivers/misc/sgi-gru/grufault.c
> +++ b/drivers/misc/sgi-gru/grufault.c
> @@ -188,7 +188,7 @@ static int non_atomic_pte_lookup(struct vm_area_struc=
t *vma,
>  	if (get_user_pages(vaddr, 1, write ? FOLL_WRITE : 0, &page, NULL) <=3D =
0)
>  		return -EFAULT;
>  	*paddr =3D page_to_phys(page);
> -	put_page(page);
> +	put_user_page(page);
>  	return 0;
>  }
> =20
>=20