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SubjectRe: [PATCH 1/3] sgi-gru: Convert put_page() to get_user_page*()
On Sun, Jul 21, 2019 at 07:25:31PM -0700, John Hubbard wrote:
> 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().
> >
> > This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
> > ("mm: introduce put_user_page*(), placeholder versions").
> >
> > Cc: Ira Weiny <ira.weiny@intel.com>
> > Cc: John Hubbard <jhubbard@nvidia.com>
> > Cc: Jérôme 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(-)
> >
>
> Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Thanks!
> thanks,
> --
> John Hubbard
> NVIDIA
>
> > diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.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_struct *vma,
> > if (get_user_pages(vaddr, 1, write ? FOLL_WRITE : 0, &page, NULL) <= 0)
> > return -EFAULT;
> > *paddr = page_to_phys(page);
> > - put_page(page);
> > + put_user_page(page);
> > return 0;
> > }
> >
> >

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