Re: [PATCH] mm: fix pfn_t to page conversion in vm_insert_mixed

On 26/01/16 20:37, Dan Williams wrote:

pfn_t_to_page() honors the flags in the pfn_t value to determine if a pfn is backed by a page. However, vm_insert_mixed() was originally written to use pfn_valid() to make this determination. To restore the old/correct behavior, ignore the pfn_t flags in the !pfn_t_devmap() case and fallback to trusting pfn_valid().

Fixes: 01c8f1c44b83 ("mm, dax, gpu: convert vm_insert_mixed to pfn_t")

Thanks, this fixes the crash with omapdrm.

Tested-by: Tomi Valkeinen tomi.valkeinen@ti.com

Tomi