[PATCH v2 12/15] mm/memory: pass PTE to copy_present_pte()

From: David Hildenbrand
Date: Thu Jan 25 2024 - 14:35:47 EST


We already read it, let's just forward it.

This patch is based on work by Ryan Roberts.

Reviewed-by: Ryan Roberts <ryan.roberts@xxxxxxx>
Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
---
mm/memory.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index 10fc14ff8e49b..729ca4d6a820c 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -959,10 +959,9 @@ static inline void __copy_present_pte(struct vm_area_struct *dst_vma,
*/
static inline int
copy_present_pte(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma,
- pte_t *dst_pte, pte_t *src_pte, unsigned long addr, int *rss,
- struct folio **prealloc)
+ pte_t *dst_pte, pte_t *src_pte, pte_t pte, unsigned long addr,
+ int *rss, struct folio **prealloc)
{
- pte_t pte = ptep_get(src_pte);
struct page *page;
struct folio *folio;

@@ -1103,7 +1102,7 @@ copy_pte_range(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma,
}
/* copy_present_pte() will clear `*prealloc' if consumed */
ret = copy_present_pte(dst_vma, src_vma, dst_pte, src_pte,
- addr, rss, &prealloc);
+ ptent, addr, rss, &prealloc);
/*
* If we need a pre-allocated page for this pte, drop the
* locks, allocate, and try again.
--
2.43.0