On Fri, Aug 21, 2020 at 12:38:03PM +0100, Chris Wilson wrote:
> In the version I tested, I also had
>
> @@ -2216,7 +2216,7 @@ static int apply_to_pte_range(struct mm_struct *mm,
> pmd_t *pmd,
>
> if (create) {
> pte = (mm == &init_mm) ?
> - pte_alloc
Quoting Chris Wilson (2020-08-21 11:39:19)
> Quoting Joerg Roedel (2020-08-21 11:23:43)
> > On Fri, Aug 21, 2020 at 11:13:36AM +0100, Chris Wilson wrote:
> > > We need to store the initial addr, as here addr == end [or earlier on
> > > earlier], so range is (start, addr).
> >
> > Right, I missed t
On Fri, Aug 21, 2020 at 12:09:02PM +0200, Joerg Roedel wrote:
> The __apply_to_page_range() function is also used to change and/or
> allocate page-table pages in the vmalloc area of the address space.
> Make sure these changes get synchronized to other page-tables in the
> system by calling arch_sy
Quoting Joerg Roedel (2020-08-21 11:23:43)
> On Fri, Aug 21, 2020 at 11:13:36AM +0100, Chris Wilson wrote:
> > We need to store the initial addr, as here addr == end [or earlier on
> > earlier], so range is (start, addr).
>
> Right, I missed that, thanks for pointing it out.
And with that (start,
On Fri, Aug 21, 2020 at 11:13:36AM +0100, Chris Wilson wrote:
> We need to store the initial addr, as here addr == end [or earlier on
> earlier], so range is (start, addr).
Right, I missed that, thanks for pointing it out.
Quoting Joerg Roedel (2020-08-21 11:09:02)
> @@ -2333,6 +2339,7 @@ static int __apply_to_page_range(struct mm_struct *mm,
> unsigned long addr,
> pgd_t *pgd;
> unsigned long next;
> unsigned long end = addr + size;
> + pgtbl_mod_mask mask = 0;
> int err = 0;
>
The __apply_to_page_range() function is also used to change and/or
allocate page-table pages in the vmalloc area of the address space.
Make sure these changes get synchronized to other page-tables in the
system by calling arch_sync_kernel_mappings() when necessary.
Signed-off-by: Joerg Roedel
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