Re: CLONE_IO

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yes dear, your email do reach me :-).   oopss....may be that's because
my email is among the recipient.

on a serious note, i have been receiving multiple bounce emails....as
shown below....pointless to complain and alerting the kernelnewbies
email id if it is problematic - which is why Rik's email is in here.

Rik, any problem with the server?

Thanks.

PS:   Bounced emails as below:

This is an automatically generated Delivery Status Notification

Delivery to the following recipient failed permanently:

    kernelnewbies@xxxxxxxxxxxx

Technical details of permanent failure:
The recipient server did not accept our requests to connect. Learn
more at http://mail.google.com/support/bin/answer.py?answer=7720
[forlond.surriel.com. (0): Connection timed out]
[humbolt.nl.linux.org. (5): Connection timed out]
[forlond.surriel.com. (15): Connection timed out]

  ----- Original message -----

Received: by 10.181.138.13 with SMTP id q13mr1807113bkn.42.1223654468664;
       Fri, 10 Oct 2008 09:01:08 -0700 (PDT)
Received: by 10.180.228.4 with HTTP; Fri, 10 Oct 2008 09:01:08 -0700 (PDT)
Message-ID: <804dabb00810100901y228ec983mf3303962cb415439@xxxxxxxxxxxxxx>
Date: Sat, 11 Oct 2008 00:01:08 +0800
From: "Peter Teoh" <htmldeveloper@xxxxxxxxx>
To: "Michael Blizek" <michi1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: CLONE_IO
Cc: kernelnewbies <kernelnewbies@xxxxxxxxxxxx>
In-Reply-To: <20081009053500.GA16836@grml>
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References: <804dabb00810081950m1975e5d5yb60679437128e63b@xxxxxxxxxxxxxx>
        <20081009053500.GA16836@grml>


On Wed, Oct 15, 2008 at 5:03 AM, Balraj Dahiya <dahbal76@xxxxxxxxx> wrote:
> Hi All,
>
> I am not receiving any mail from kernelnewbies for last couple of days.
>
> Is there any problem there?
>
> Thanks,
> Balraj
>
> --- On Thu, 10/9/08, Peter Teoh <htmldeveloper@xxxxxxxxx> wrote:
>
> From: Peter Teoh <htmldeveloper@xxxxxxxxx>
> Subject: CLONE_IO
> To: "kernelnewbies" <kernelnewbies@xxxxxxxxxxxx>
> Date: Thursday, October 9, 2008, 8:20 AM
>
> What is CLONE_IO used for?   What is the definition / meaning of I/O
> context sharing between parent and child?
>
> In fact, from header file:
>
> #define CLONE_FS        0x00000200      /* set if fs info shared
> between processes */
> #define CLONE_FILES     0x00000400      /* set if open files shared
> between processes */
> #define CLONE_IO                0x80000000      /* Clone io context */
>
> These three looked seemingly the same/related.....differences among them?
>
> And in kernel/fork.c:
>
>         /*
>          * Share io context with parent, if CLONE_IO is set
>          */
>         if (clone_flags & CLONE_IO) {
>                 tsk->io_context = ioc_task_link(ioc);
>                 if (unlikely(!tsk->io_context))
>                         return -ENOMEM;
> the io_context field is set, why and for what purpose?   Thanks.
>
>
> --
> Regards,
> Peter Teoh
>
> --
> To unsubscribe from this list: send an email with
> "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx
> Please read the FAQ at http://kernelnewbies.org/FAQ
>
>
>



-- 
Regards,
Peter Teoh

--
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