On Wed, Jan 03, 2024 at 05:14:18PM +0800, peterx@xxxxxxxxxx wrote: > From: Peter Xu <peterx@xxxxxxxxxx> > > no_page_table() is not yet used for hugetlb code paths. Make it prepared. > > The major difference here is hugetlb will return -EFAULT as long as page > cache does not exist, even if VM_SHARED. See hugetlb_follow_page_mask(). > > Pass "address" into no_page_table() too, as hugetlb will need it. > > Reviewed-by: Christoph Hellwig <hch@xxxxxxxxxxxxx> > Signed-off-by: Peter Xu <peterx@xxxxxxxxxx> > --- > mm/gup.c | 44 ++++++++++++++++++++++++++------------------ > 1 file changed, 26 insertions(+), 18 deletions(-) Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Jason
