diff options
| author | Alex Shi (tencent) <alexs@kernel.org> | 2024-04-11 09:17:11 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-05-06 03:53:34 +0300 |
| commit | 452e862f4315d8e5e839fe1dc220fd2716be6d3a (patch) | |
| tree | acbce9b139a85b298043bbb481df7c9805da63d6 /mm/ksm.c | |
| parent | 85b67b01044e7cd52031d9b84745c816f831e68e (diff) | |
| download | linux-452e862f4315d8e5e839fe1dc220fd2716be6d3a.tar.xz | |
mm/ksm: replace set_page_stable_node by folio_set_stable_node
Only single page could be reached where we set stable node after write
protect, so use folio converted func to replace page's. And remove the
unused func set_page_stable_node().
Link: https://lkml.kernel.org/r/20240411061713.1847574-11-alexs@kernel.org
Signed-off-by: Alex Shi (tencent) <alexs@kernel.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Izik Eidus <izik.eidus@ravellosystems.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/ksm.c')
| -rw-r--r-- | mm/ksm.c | 12 |
1 files changed, 3 insertions, 9 deletions
@@ -1094,17 +1094,11 @@ static inline struct ksm_stable_node *page_stable_node(struct page *page) return folio_stable_node(page_folio(page)); } -static inline void set_page_stable_node(struct page *page, - struct ksm_stable_node *stable_node) -{ - VM_BUG_ON_PAGE(PageAnon(page) && PageAnonExclusive(page), page); - page->mapping = (void *)((unsigned long)stable_node | PAGE_MAPPING_KSM); -} - static inline void folio_set_stable_node(struct folio *folio, struct ksm_stable_node *stable_node) { - set_page_stable_node(&folio->page, stable_node); + VM_WARN_ON_FOLIO(folio_test_anon(folio) && PageAnonExclusive(&folio->page), folio); + folio->mapping = (void *)((unsigned long)stable_node | PAGE_MAPPING_KSM); } #ifdef CONFIG_SYSFS @@ -1519,7 +1513,7 @@ static int try_to_merge_one_page(struct vm_area_struct *vma, * PageAnon+anon_vma to PageKsm+NULL stable_node: * stable_tree_insert() will update stable_node. */ - set_page_stable_node(page, NULL); + folio_set_stable_node(page_folio(page), NULL); mark_page_accessed(page); /* * Page reclaim just frees a clean page with no dirty |