On Wed, Apr 09, 2025 at 04:56:29PM +0200, Andrey Ryabinin wrote:
Hi Andrey,
...
> >>> - page = __get_free_page(GFP_KERNEL);
> >>> + page = __get_free_page(GFP_ATOMIC);
> >>> if (!page)
> >> I think a better way to fix this would be moving out allocation from
> >> atomic context. Allocate page prior
> >> to apply_to_page_range() call and pass it down to
> >> kasan_populate_vmalloc_pte().
> > I think the page address could be passed as the parameter to
> > kasan_populate_vmalloc_pte().
>
> We'll need to pass it as 'struct page **page' or maybe as pointer to some
> struct, e.g.:
> struct page_data {
> struct page *page;
> };
...
Thanks for the hint! I will try to implement that, but will likely start
in two weeks, after I am back from vacation.
Not sure wether this version needs to be dropped.
Thanks!
