From: Andrew Morton <akpm@linux-foundation.org>
To: changbin.du@intel.com
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] mm: update comments for struct page.mapping
Date: Tue, 26 Sep 2017 16:30:27 -0700 [thread overview]
Message-ID: <20170926163027.12836f5006745fcf6e59ad24@linux-foundation.org> (raw)
In-Reply-To: <1506410057-22316-1-git-send-email-changbin.du@intel.com>
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?
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2017-09-26 23:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-26 7:14 changbin.du
2017-09-26 23:30 ` Andrew Morton [this message]
2017-09-27 3:59 ` Du, Changbin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170926163027.12836f5006745fcf6e59ad24@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=changbin.du@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox