diff options
| author | Matthew Wilcox <[email protected]> | 2018-06-07 17:08:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2018-06-07 17:34:37 -0700 |
| commit | fa3015b7eed5da68a40c7667e8b3d5c20ef56e82 (patch) | |
| tree | 7ce189bb86071da4599dbf6b4c60fa6738cf84ab | |
| parent | 66a6ffd2af42b0bafaecccbd7c1c30d386de21ab (diff) | |
mm: use page->deferred_list
Now that we can represent the location of 'deferred_list' in C instead of
comments, make use of that ability.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Matthew Wilcox <[email protected]>
Acked-by: Vlastimil Babka <[email protected]>
Acked-by: Kirill A. Shutemov <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Jérôme Glisse <[email protected]>
Cc: Lai Jiangshan <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | mm/huge_memory.c | 7 | ||||
| -rw-r--r-- | mm/page_alloc.c | 2 |
2 files changed, 3 insertions, 6 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index ac5591d8622c..ba8fdc0b6e7f 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -483,11 +483,8 @@ pmd_t maybe_pmd_mkwrite(pmd_t pmd, struct vm_area_struct *vma) static inline struct list_head *page_deferred_list(struct page *page) { - /* - * ->lru in the tail pages is occupied by compound_head. - * Let's use ->mapping + ->index in the second tail page as list_head. - */ - return (struct list_head *)&page[2].mapping; + /* ->lru in the tail pages is occupied by compound_head. */ + return &page[2].deferred_list; } void prep_transhuge_page(struct page *page) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 5afdf495c374..628fd3e24731 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -952,7 +952,7 @@ static int free_tail_pages_check(struct page *head_page, struct page *page) case 2: /* * the second tail page: ->mapping is - * page_deferred_list().next -- ignore value. + * deferred_list.next -- ignore value. */ break; default: |