On 9/5/25 11:56 PM, David Hildenbrand wrote:
On 06.09.25 03:05, John Hubbard wrote:
On 9/1/25 8:03 AM, David Hildenbrand wrote:
...> Well, there is a lot I dislike about record_subpages() to go back
there.
Starting with "as Willy keeps explaining, the concept of subpages do
not exist and endin
pmdp = pmd_offset_lockless(pudp, pud, addr);
@@ -3046,23 +3041,21 @@ static int gup_fast_pmd_range(pud_t *pudp, pud_t pud,
unsigned long addr,
next = pmd_addr_end(addr, end);
if (!pmd_present(pmd))
- return 0;
+ brea
On 06.09.25 03:05, John Hubbard wrote:
On 9/1/25 8:03 AM, David Hildenbrand wrote:
We can just cleanup the code by calculating the #refs earlier,
so we can just inline what remains of record_subpages().
Calculate the number of references/pages ahead of times, and record them
only once all our t
