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authorDavid Hildenbrand <david@redhat.com>2023-12-21 01:45:00 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-12-29 22:58:56 +0300
commit08e7795e2444c3df9292f4ac7092be6168166a46 (patch)
treea137a8dc7c5fa9b20447cf83f0788f36d4d0a71d /mm
parent96c772c25c89f35091ce924117602d04de82a0fe (diff)
downloadlinux-08e7795e2444c3df9292f4ac7092be6168166a46.tar.xz
mm/memory: page_try_dup_anon_rmap() -> folio_try_dup_anon_rmap_pte()
Let's convert copy_nonpresent_pte(). While at it, perform some more folio conversion. Link: https://lkml.kernel.org/r/20231220224504.646757-37-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Muchun Song <songmuchun@bytedance.com> Cc: Peter Xu <peterx@redhat.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Yin Fengwei <fengwei.yin@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/memory.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/memory.c b/mm/memory.c
index fdc87bf15545..d66559cd55db 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -785,6 +785,7 @@ copy_nonpresent_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
unsigned long vm_flags = dst_vma->vm_flags;
pte_t orig_pte = ptep_get(src_pte);
pte_t pte = orig_pte;
+ struct folio *folio;
struct page *page;
swp_entry_t entry = pte_to_swp_entry(orig_pte);
@@ -829,6 +830,7 @@ copy_nonpresent_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
}
} else if (is_device_private_entry(entry)) {
page = pfn_swap_entry_to_page(entry);
+ folio = page_folio(page);
/*
* Update rss count even for unaddressable pages, as
@@ -839,10 +841,10 @@ copy_nonpresent_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
* for unaddressable pages, at some point. But for now
* keep things as they are.
*/
- get_page(page);
+ folio_get(folio);
rss[mm_counter(page)]++;
/* Cannot fail as these pages cannot get pinned. */
- BUG_ON(page_try_dup_anon_rmap(page, false, src_vma));
+ folio_try_dup_anon_rmap_pte(folio, page, src_vma);
/*
* We do not preserve soft-dirty information, because so
@@ -956,7 +958,7 @@ copy_present_pte(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma,
* future.
*/
folio_get(folio);
- if (unlikely(page_try_dup_anon_rmap(page, false, src_vma))) {
+ if (unlikely(folio_try_dup_anon_rmap_pte(folio, page, src_vma))) {
/* Page may be pinned, we have to copy. */
folio_put(folio);
return copy_present_page(dst_vma, src_vma, dst_pte, src_pte,