On 06/28/2018 04:59 PM, Alexey Brodkin wrote:
> We encode offset from swapcache page in __swp_entry() this way, see [1]:
> | /* Encode swap {type,off} tuple into PTE
> | * We reserve 13 bits for 5-bit @type, keeping bits 12-5 zero, ensuring that
> | * PAGE_PRESENT is zero in a PTE holding swap "i
We encode offset from swapcache page in __swp_entry() this way, see [1]:
| /* Encode swap {type,off} tuple into PTE
| * We reserve 13 bits for 5-bit @type, keeping bits 12-5 zero, ensuring that
| * PAGE_PRESENT is zero in a PTE holding swap "identifier"
| */
| #define __swp_entry(type, off)
