Re: [RFC PATCH RESEND 2/3] mm: Add an apply_to_pfn_range interface

2019-03-21 Thread Jerome Glisse
On Thu, Mar 21, 2019 at 07:59:35PM +, Thomas Hellstrom wrote: > On Thu, 2019-03-21 at 09:52 -0400, Jerome Glisse wrote: > > On Thu, Mar 21, 2019 at 01:22:35PM +, Thomas Hellstrom wrote: > > > This is basically apply_to_page_range with added functionality: > > > Allocating missing parts of t

Re: [RFC PATCH RESEND 2/3] mm: Add an apply_to_pfn_range interface

2019-03-21 Thread Thomas Hellstrom
On Thu, 2019-03-21 at 09:52 -0400, Jerome Glisse wrote: > On Thu, Mar 21, 2019 at 01:22:35PM +, Thomas Hellstrom wrote: > > This is basically apply_to_page_range with added functionality: > > Allocating missing parts of the page table becomes optional, which > > means that the function can be g

Re: [RFC PATCH RESEND 2/3] mm: Add an apply_to_pfn_range interface

2019-03-21 Thread Jerome Glisse
On Thu, Mar 21, 2019 at 01:22:35PM +, Thomas Hellstrom wrote: > This is basically apply_to_page_range with added functionality: > Allocating missing parts of the page table becomes optional, which > means that the function can be guaranteed not to error if allocation > is disabled. Also passing