From: David Hildenbrand <david@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org, David Hildenbrand <david@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Matthew Wilcox (Oracle)" <willy@infradead.org>,
Hugh Dickins <hughd@google.com>,
Ryan Roberts <ryan.roberts@arm.com>,
Yin Fengwei <fengwei.yin@intel.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
Muchun Song <muchun.song@linux.dev>, Peter Xu <peterx@redhat.com>
Subject: [PATCH v2 35/40] mm/huge_memory: page_try_dup_anon_rmap() -> folio_try_dup_anon_rmap_pmd()
Date: Wed, 20 Dec 2023 23:44:59 +0100 [thread overview]
Message-ID: <20231220224504.646757-36-david@redhat.com> (raw)
In-Reply-To: <20231220224504.646757-1-david@redhat.com>
Let's convert copy_huge_pmd() and fixup the comment in copy_huge_pud().
While at it, perform more folio conversion in copy_huge_pmd().
Signed-off-by: David Hildenbrand <david@redhat.com>
---
mm/huge_memory.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index e7bc0f38ddc53..edbca08449357 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1275,6 +1275,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
{
spinlock_t *dst_ptl, *src_ptl;
struct page *src_page;
+ struct folio *src_folio;
pmd_t pmd;
pgtable_t pgtable = NULL;
int ret = -ENOMEM;
@@ -1341,11 +1342,12 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
src_page = pmd_page(pmd);
VM_BUG_ON_PAGE(!PageHead(src_page), src_page);
+ src_folio = page_folio(src_page);
- get_page(src_page);
- if (unlikely(page_try_dup_anon_rmap(src_page, true, src_vma))) {
+ folio_get(src_folio);
+ if (unlikely(folio_try_dup_anon_rmap_pmd(src_folio, src_page, src_vma))) {
/* Page maybe pinned: split and retry the fault on PTEs. */
- put_page(src_page);
+ folio_put(src_folio);
pte_free(dst_mm, pgtable);
spin_unlock(src_ptl);
spin_unlock(dst_ptl);
@@ -1454,8 +1456,8 @@ int copy_huge_pud(struct mm_struct *dst_mm, struct mm_struct *src_mm,
}
/*
- * TODO: once we support anonymous pages, use page_try_dup_anon_rmap()
- * and split if duplicating fails.
+ * TODO: once we support anonymous pages, use
+ * folio_try_dup_anon_rmap_*() and split if duplicating fails.
*/
pudp_set_wrprotect(src_mm, addr, src_pud);
pud = pud_mkold(pud_wrprotect(pud));
--
2.43.0
next prev parent reply other threads:[~2023-12-20 22:46 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-20 22:44 [PATCH v2 00/40] mm/rmap: interface overhaul David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 01/40] mm/rmap: rename hugepage_add* to hugetlb_add* David Hildenbrand
2023-12-21 4:33 ` Matthew Wilcox
2023-12-20 22:44 ` [PATCH v2 02/40] mm/rmap: introduce and use hugetlb_remove_rmap() David Hildenbrand
2023-12-21 2:54 ` Muchun Song
2023-12-20 22:44 ` [PATCH v2 03/40] mm/rmap: introduce and use hugetlb_add_file_rmap() David Hildenbrand
2023-12-21 2:58 ` Muchun Song
2023-12-21 4:35 ` Matthew Wilcox
2023-12-20 22:44 ` [PATCH v2 04/40] mm/rmap: introduce and use hugetlb_try_dup_anon_rmap() David Hildenbrand
2023-12-21 4:40 ` Matthew Wilcox
2023-12-21 9:29 ` David Hildenbrand
2023-12-21 5:47 ` Muchun Song
2023-12-20 22:44 ` [PATCH v2 05/40] mm/rmap: introduce and use hugetlb_try_share_anon_rmap() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 06/40] mm/rmap: add hugetlb sanity checks for anon rmap handling David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 07/40] mm/rmap: convert folio_add_file_rmap_range() into folio_add_file_rmap_[pte|ptes|pmd]() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 08/40] mm/memory: page_add_file_rmap() -> folio_add_file_rmap_[pte|pmd]() David Hildenbrand
2024-08-09 17:13 ` Vincent Donnefort
2024-08-09 17:27 ` David Hildenbrand
2024-08-09 17:32 ` Vincent Donnefort
2023-12-20 22:44 ` [PATCH v2 09/40] mm/huge_memory: page_add_file_rmap() -> folio_add_file_rmap_pmd() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 10/40] mm/migrate: page_add_file_rmap() -> folio_add_file_rmap_pte() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 11/40] mm/userfaultfd: " David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 12/40] mm/rmap: remove page_add_file_rmap() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 13/40] mm/rmap: factor out adding folio mappings into __folio_add_rmap() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 14/40] mm/rmap: introduce folio_add_anon_rmap_[pte|ptes|pmd]() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 15/40] mm/huge_memory: batch rmap operations in __split_huge_pmd_locked() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 16/40] mm/huge_memory: page_add_anon_rmap() -> folio_add_anon_rmap_pmd() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 17/40] mm/migrate: page_add_anon_rmap() -> folio_add_anon_rmap_pte() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 18/40] mm/ksm: " David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 19/40] mm/swapfile: " David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 20/40] mm/memory: " David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 21/40] mm/rmap: remove page_add_anon_rmap() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 22/40] mm/rmap: remove RMAP_COMPOUND David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 23/40] mm/rmap: introduce folio_remove_rmap_[pte|ptes|pmd]() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 24/40] kernel/events/uprobes: page_remove_rmap() -> folio_remove_rmap_pte() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 25/40] mm/huge_memory: page_remove_rmap() -> folio_remove_rmap_pmd() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 26/40] mm/khugepaged: page_remove_rmap() -> folio_remove_rmap_pte() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 27/40] mm/ksm: " David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 28/40] mm/memory: " David Hildenbrand
2024-01-22 16:58 ` Ryan Roberts
2024-01-22 17:01 ` David Hildenbrand
2024-01-22 17:20 ` Matthew Wilcox
2024-01-22 17:26 ` Ryan Roberts
2024-01-22 17:32 ` Matthew Wilcox
2024-01-22 17:34 ` David Hildenbrand
2024-01-22 17:40 ` David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 29/40] mm/migrate_device: " David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 30/40] mm/rmap: " David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 31/40] Documentation: stop referring to page_remove_rmap() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 32/40] mm/rmap: remove page_remove_rmap() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 33/40] mm/rmap: convert page_dup_file_rmap() to folio_dup_file_rmap_[pte|ptes|pmd]() David Hildenbrand
2023-12-20 22:44 ` [PATCH v2 34/40] mm/rmap: introduce folio_try_dup_anon_rmap_[pte|ptes|pmd]() David Hildenbrand
2023-12-20 22:44 ` David Hildenbrand [this message]
2023-12-20 22:45 ` [PATCH v2 36/40] mm/memory: page_try_dup_anon_rmap() -> folio_try_dup_anon_rmap_pte() David Hildenbrand
2023-12-20 22:45 ` [PATCH v2 37/40] mm/rmap: remove page_try_dup_anon_rmap() David Hildenbrand
2023-12-20 22:45 ` [PATCH v2 38/40] mm: convert page_try_share_anon_rmap() to folio_try_share_anon_rmap_[pte|pmd]() David Hildenbrand
2023-12-20 22:45 ` [PATCH v2 39/40] mm/rmap: rename COMPOUND_MAPPED to ENTIRELY_MAPPED David Hildenbrand
2023-12-20 22:45 ` [PATCH v2 40/40] mm: remove one last reference to page_add_*_rmap() David Hildenbrand
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