From: Andrew Morton <akpm@linux-foundation.org>
To: chengang@emindsoft.com.cn
Cc: vbabka@suse.cz, mhocko@suse.com, kirill.shutemov@linux.intel.com,
mingo@kernel.org, dave.hansen@linux.intel.com,
dan.j.williams@intel.com, hannes@cmpxchg.org, jack@suse.cz,
iamjoonsoo.kim@lge.com, jmarchan@redhat.com,
dingel@linux.vnet.ibm.com, oleg@redhat.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
Chen Gang <gang.chen.5i5j@gmail.com>
Subject: Re: [PATCH] mm: gup: Re-define follow_page_mask output parameter page_mask usage
Date: Mon, 11 Jul 2016 14:17:02 -0700 [thread overview]
Message-ID: <20160711141702.fb1879707aa2bcb290133a43@linux-foundation.org> (raw)
In-Reply-To: <1468084625-26999-1-git-send-email-chengang@emindsoft.com.cn>
On Sun, 10 Jul 2016 01:17:05 +0800 chengang@emindsoft.com.cn wrote:
> For a pure output parameter:
>
> - When callee fails, the caller should not assume the output parameter
> is still valid.
>
> - And callee should not assume the pure output parameter must be
> provided by caller -- caller has right to pass NULL when caller does
> not care about it.
Sorry, I don't think this one is worth merging really.
next prev parent reply other threads:[~2016-07-11 21:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-09 17:17 [PATCH] mm: gup: Re-define follow_page_mask output parameter page_mask usage chengang
2016-07-11 21:17 ` Andrew Morton [this message]
2016-07-12 17:03 ` Chen Gang
2016-07-13 7:50 ` Michal Hocko
2016-07-17 0:13 ` Chen Gang
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=20160711141702.fb1879707aa2bcb290133a43@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=chengang@emindsoft.com.cn \
--cc=dan.j.williams@intel.com \
--cc=dave.hansen@linux.intel.com \
--cc=dingel@linux.vnet.ibm.com \
--cc=gang.chen.5i5j@gmail.com \
--cc=hannes@cmpxchg.org \
--cc=iamjoonsoo.kim@lge.com \
--cc=jack@suse.cz \
--cc=jmarchan@redhat.com \
--cc=kirill.shutemov@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mhocko@suse.com \
--cc=mingo@kernel.org \
--cc=oleg@redhat.com \
--cc=vbabka@suse.cz \
/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;
as well as URLs for NNTP newsgroup(s).