Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1740281
| From | Andrew Morton <akpm@linux-foundation.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] mm: update comments for struct page.mapping |
| Date | 2017-09-27 01:40 +0200 |
| Message-ID | <uu7Ch-2SA-3@gated-at.bofh.it> (permalink) |
| References | <utStB-1zD-35@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue, 26 Sep 2017 15:14:17 +0800 changbin.du@intel.com wrote:
> 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.
>
> ...
>
> --- 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 */
Why did you remove the (useful) reference to PAGE_MAPPING_ANON?
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll 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