Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1739619

[PATCH] mm: update comments for struct page.mapping

Show all headers | View raw

From: Changbin Du <changbin.du@intel.com>

The struct page.mapping can NULL or points to one object of type
address_space, anon_vma or KSM private structure.

Signed-off-by: Changbin Du <changbin.du@intel.com>
---
 include/linux/mm_types.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 46f4ecf5..8dd6cb3 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -47,8 +47,8 @@ struct page {
 						 * inode address_space, or NULL.
 						 * If page mapped as anonymous
 						 * memory, low bit is set, and
-						 * it points to anon_vma object:
-						 * see PAGE_MAPPING_ANON below.
+						 * it points to anon_vma object
+						 * or KSM private structure.
 						 */
 		void *s_mem;			/* slab first object */
 		atomic_t compound_mapcount;	/* first tail page */
-- 
2.7.4

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH] mm: update comments for struct page.mapping changbin.du@intel.com - 2017-09-26 09:30 +0200
  Re: [PATCH] mm: update comments for struct page.mapping Andrew Morton <akpm@linux-foundation.org> - 2017-09-27 01:40 +0200
    Re: [PATCH] mm: update comments for struct page.mapping "Du, Changbin" <changbin.du@intel.com> - 2017-09-27 06:10 +0200

csiph-web