diff options
| author | Matthew Wilcox <mawilcox@microsoft.com> | 2018-06-08 03:08:42 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-08 03:34:37 +0300 |
| commit | fa3015b7eed5da68a40c7667e8b3d5c20ef56e82 (patch) | |
| tree | 7ce189bb86071da4599dbf6b4c60fa6738cf84ab /mm | |
| parent | 66a6ffd2af42b0bafaecccbd7c1c30d386de21ab (diff) | |
| download | linux-fa3015b7eed5da68a40c7667e8b3d5c20ef56e82.tar.xz | |
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/20180518194519.3820-9-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -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: |