From: Tilman Schmidt <tilman@imap.cc>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Jarek Poplawski <jarkao2@gmail.com>,
David Miller <davem@davemloft.net>,
hidave.darkstar@gmail.com, linux-kernel@vger.kernel.org,
tglx@linutronix.de, linux-wireless@vger.kernel.org,
linux-ppp@vger.kernel.org, netdev@vger.kernel.org,
paulus@samba.org, Michael Buesch <mb@bu3sch.de>,
Oliver Hartkopp <oliver@hartkopp.net>
Subject: Re: [PATCH] net: Adjust softirq raising in __napi_schedule
Date: Wed, 21 Oct 2009 21:37:24 +0000 [thread overview]
Message-ID: <4ADF7F14.7000109@imap.cc> (raw)
In-Reply-To: <1256160330.12174.2.camel@johannes.local>
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Johannes Berg schrieb:
> This still doesn't make any sense.
>
> There may or may not be a lot of code that assumes that everything else
> is run with other tasklets disabled, and that it cannot be interrupted
> by a tasklet and thus create a race.
>
> Can you prove that is not the case, across the entire networking layer?
So what's the solution you propose?
--
Tilman Schmidt E-Mail: tilman@imap.cc
Bonn, Germany
Diese Nachricht besteht zu 100% aus wiederverwerteten Bits.
Ungeöffnet mindestens haltbar bis: (siehe Rückseite)
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WARNING: multiple messages have this Message-ID (diff)
From: Tilman Schmidt <tilman@imap.cc>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Jarek Poplawski <jarkao2@gmail.com>,
David Miller <davem@davemloft.net>,
hidave.darkstar@gmail.com, linux-kernel@vger.kernel.org,
tglx@linutronix.de, linux-wireless@vger.kernel.org,
linux-ppp@vger.kernel.org, netdev@vger.kernel.org,
paulus@samba.org, Michael Buesch <mb@bu3sch.de>,
Oliver Hartkopp <oliver@hartkopp.net>
Subject: Re: [PATCH] net: Adjust softirq raising in __napi_schedule
Date: Wed, 21 Oct 2009 23:37:24 +0200 [thread overview]
Message-ID: <4ADF7F14.7000109@imap.cc> (raw)
In-Reply-To: <1256160330.12174.2.camel@johannes.local>
[-- Attachment #1: Type: text/plain, Size: 574 bytes --]
Johannes Berg schrieb:
> This still doesn't make any sense.
>
> There may or may not be a lot of code that assumes that everything else
> is run with other tasklets disabled, and that it cannot be interrupted
> by a tasklet and thus create a race.
>
> Can you prove that is not the case, across the entire networking layer?
So what's the solution you propose?
--
Tilman Schmidt E-Mail: tilman@imap.cc
Bonn, Germany
Diese Nachricht besteht zu 100% aus wiederverwerteten Bits.
Ungeöffnet mindestens haltbar bis: (siehe Rückseite)
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next prev parent reply other threads:[~2009-10-21 21:37 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-11 9:52 NOHZ: local_softirq_pending 08 Dave Young
2009-10-11 10:08 ` Johannes Berg
2009-10-11 10:17 ` Michael Buesch
2009-10-11 10:37 ` Johannes Berg
2009-10-11 10:38 ` David Miller
2009-10-11 10:55 ` Dave Young
2009-10-11 11:18 ` Tilman Schmidt
2009-10-11 11:40 ` Johannes Berg
2009-10-12 8:28 ` Tilman Schmidt
2009-10-12 8:28 ` Tilman Schmidt
2009-10-12 10:32 ` David Miller
2009-10-12 10:32 ` David Miller
2009-10-12 11:25 ` Tilman Schmidt
2009-10-12 11:25 ` Tilman Schmidt
2009-10-15 11:40 ` Jarek Poplawski
2009-10-15 11:40 ` Jarek Poplawski
2009-10-15 17:53 ` Jarek Poplawski
2009-10-15 17:53 ` Jarek Poplawski
2009-10-21 18:46 ` Tilman Schmidt
2009-10-21 18:46 ` Tilman Schmidt
2009-10-21 21:19 ` [PATCH] net: Adjust softirq raising in __napi_schedule Jarek Poplawski
2009-10-21 21:19 ` Jarek Poplawski
2009-10-21 21:25 ` Johannes Berg
2009-10-21 21:25 ` Johannes Berg
2009-10-21 21:37 ` Tilman Schmidt [this message]
2009-10-21 21:37 ` Tilman Schmidt
2009-10-21 21:39 ` Jarek Poplawski
2009-10-21 21:39 ` Jarek Poplawski
2009-10-22 8:27 ` Johannes Berg
2009-10-22 8:27 ` Johannes Berg
2009-10-23 14:39 ` Tilman Schmidt
2009-10-23 14:39 ` Tilman Schmidt
2009-10-23 14:46 ` Johannes Berg
2009-10-23 14:46 ` Johannes Berg
2009-10-26 7:41 ` Jarek Poplawski
2009-10-26 7:44 ` Johannes Berg
2009-10-26 7:44 ` Johannes Berg
2009-10-26 7:54 ` Jarek Poplawski
2009-10-26 7:58 ` Johannes Berg
2009-10-26 7:58 ` Johannes Berg
2009-10-26 8:47 ` Tilman Schmidt
2009-10-26 8:47 ` Tilman Schmidt
2009-10-26 8:56 ` Johannes Berg
2009-10-26 8:56 ` Johannes Berg
2009-10-27 0:52 ` Tilman Schmidt
2009-10-27 0:52 ` Tilman Schmidt
2009-10-27 7:01 ` Johannes Berg
2009-10-27 7:01 ` Johannes Berg
2009-10-22 11:29 ` David Miller
2009-10-22 11:29 ` David Miller
2009-10-22 12:54 ` Jarek Poplawski
2009-10-22 23:37 ` NOHZ: local_softirq_pending 08 Tilman Schmidt
2009-10-22 23:37 ` Tilman Schmidt
2009-10-23 13:34 ` Johannes Berg
2009-10-23 13:34 ` Johannes Berg
2009-10-23 14:27 ` Tilman Schmidt
2009-10-23 14:27 ` Tilman Schmidt
2009-10-23 14:31 ` Johannes Berg
2009-10-23 14:31 ` Johannes Berg
2009-10-23 16:33 ` Tilman Schmidt
2009-10-23 16:33 ` Tilman Schmidt
2009-10-11 16:39 ` Joe Korty
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