From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: kbuild@01.org, Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [next:master 2131/2422] kernel/sys.c:1888 prctl_set_mm_map() warn: maybe return -EFAULT instead of the bytes remaining?
Date: Wed, 27 Aug 2014 14:09:09 +0400 [thread overview]
Message-ID: <20140827100909.GA8692@moon> (raw)
In-Reply-To: <20140827095613.GN5100@mwanda>
On Wed, Aug 27, 2014 at 12:56:13PM +0300, Dan Carpenter wrote:
>
> tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head: d05446ae2128064a4bb8f74c84f6901ffb5c94bc
> commit: 802d335c0f7f1a1867bf59814c55970a71b10413 [2131/2422] prctl: PR_SET_MM -- introduce PR_SET_MM_MAP operation
>
> kernel/sys.c:1888 prctl_set_mm_map() warn: maybe return -EFAULT instead of the bytes remaining?
>
> git remote add next git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> git remote update next
> git checkout 802d335c0f7f1a1867bf59814c55970a71b10413
> vim +1888 kernel/sys.c
>
> 802d335c Cyrill Gorcunov 2014-08-26 1872
> 802d335c Cyrill Gorcunov 2014-08-26 1873 mm->start_code = prctl_map.start_code;
> 802d335c Cyrill Gorcunov 2014-08-26 1874 mm->end_code = prctl_map.end_code;
> 802d335c Cyrill Gorcunov 2014-08-26 1875 mm->start_data = prctl_map.start_data;
> 802d335c Cyrill Gorcunov 2014-08-26 1876 mm->end_data = prctl_map.end_data;
> 802d335c Cyrill Gorcunov 2014-08-26 1877 mm->start_brk = prctl_map.start_brk;
> 802d335c Cyrill Gorcunov 2014-08-26 1878 mm->brk = prctl_map.brk;
> 802d335c Cyrill Gorcunov 2014-08-26 1879 mm->start_stack = prctl_map.start_stack;
> 802d335c Cyrill Gorcunov 2014-08-26 1880 mm->arg_start = prctl_map.arg_start;
> 802d335c Cyrill Gorcunov 2014-08-26 1881 mm->arg_end = prctl_map.arg_end;
> 802d335c Cyrill Gorcunov 2014-08-26 1882 mm->env_start = prctl_map.env_start;
> 802d335c Cyrill Gorcunov 2014-08-26 1883 mm->env_end = prctl_map.env_end;
> 802d335c Cyrill Gorcunov 2014-08-26 1884
> 802d335c Cyrill Gorcunov 2014-08-26 1885 error = 0;
> 802d335c Cyrill Gorcunov 2014-08-26 1886 out:
> 802d335c Cyrill Gorcunov 2014-08-26 1887 up_read(&mm->mmap_sem);
> 802d335c Cyrill Gorcunov 2014-08-26 @1888 return error;
Not really sure I'm follow. @error is error code either 0 (on success) or
any other if some problem happened.
--
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:[~2014-08-27 10:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-27 9:56 [next:master 2131/2422] kernel/sys.c:1888 prctl_set_mm_map() warn: maybe return -EFAULT instead of the bytes remaining? Dan Carpenter
2014-08-27 10:09 ` Cyrill Gorcunov [this message]
2014-08-27 10:24 ` Dan Carpenter
2014-08-27 10:28 ` Cyrill Gorcunov
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=20140827100909.GA8692@moon \
--to=gorcunov@gmail.com \
--cc=dan.carpenter@oracle.com \
--cc=kbuild@01.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.