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From: Patrick McHardy <kaber@trash.net>
To: dccp@vger.kernel.org
Subject: Re: [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version
Date: Tue, 22 Apr 2008 04:56:26 +0000	[thread overview]
Message-ID: <480D6FFA.80205@trash.net> (raw)
In-Reply-To: <20080414073915.GA9655@gerrit.erg.abdn.ac.uk>

Tomasz Grobelny wrote:
> Dnia Monday 21 of April 2008, Arnaldo Carvalho de Melo napisał:
>> Nod, if we don't need the space reserved for the lower layer protocols
>> in DCCP it is actually the best solution, as we don't need to zero the
>> cb again before passing it to IP, it gets zeroed at alloc_skb time and
>> that is it. If we need the space, we have to pay the price of
>> memset before passing to IP.
>>
> Ok, so in this case the patch for DCCP could be reverted in test tree, is that 
> right? Were these two deleted memsets zeroing all that was necessary or were 
> there any other bugs fixed by the patch?

No, those two memsets became unnecessary by the addition
of the new cb members. If you want to remove them again,
you need to add those memsets back and additionally add
memsets that zero the first sizeof(inet_skb_parm)/
sizeof(inet6_skb_parm) bytes everywhere else where packets
are passed to IP(v6).

WARNING: multiple messages have this Message-ID (diff)
From: Patrick McHardy <kaber@trash.net>
To: Tomasz Grobelny <tomasz@grobelny.oswiecenia.net>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>,
	Gerrit Renker <gerrit@erg.abdn.ac.uk>,
	dccp@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set
Date: Tue, 22 Apr 2008 06:56:26 +0200	[thread overview]
Message-ID: <480D6FFA.80205@trash.net> (raw)
In-Reply-To: <200804211817.01189.tomasz@grobelny.oswiecenia.net>

Tomasz Grobelny wrote:
> Dnia Monday 21 of April 2008, Arnaldo Carvalho de Melo napisał:
>> Nod, if we don't need the space reserved for the lower layer protocols
>> in DCCP it is actually the best solution, as we don't need to zero the
>> cb again before passing it to IP, it gets zeroed at alloc_skb time and
>> that is it. If we need the space, we have to pay the price of
>> memset before passing to IP.
>>
> Ok, so in this case the patch for DCCP could be reverted in test tree, is that 
> right? Were these two deleted memsets zeroing all that was necessary or were 
> there any other bugs fixed by the patch?

No, those two memsets became unnecessary by the addition
of the new cb members. If you want to remove them again,
you need to add those memsets back and additionally add
memsets that zero the first sizeof(inet_skb_parm)/
sizeof(inet6_skb_parm) bytes everywhere else where packets
are passed to IP(v6).

  parent reply	other threads:[~2008-04-22  4:56 UTC|newest]

Thread overview: 94+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-14  7:39 [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version Gerrit Renker
2008-04-14  7:39 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-14 23:45 ` Tomasz Grobelny
2008-04-14 23:45   ` Tomasz Grobelny
2008-04-15 15:14 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-04-15 15:14   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-15 15:21 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-04-15 15:21   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-15 18:01 ` Tomasz Grobelny
2008-04-15 18:01   ` Tomasz Grobelny
2008-04-15 19:38 ` Tomasz Grobelny
2008-04-15 19:38   ` Tomasz Grobelny
2008-04-15 20:14   ` inconsistent lock state with kernel 2.6.24.4 Bernard Pidoux
2008-04-15 20:04 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Arnaldo Carvalho de Melo
2008-04-15 20:04   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Arnaldo Carvalho de Melo
2008-04-16  6:20 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-04-16  6:20   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-16  7:43 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-04-16  7:43   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-17 18:03 ` Tomasz Grobelny
2008-04-17 18:03   ` Tomasz Grobelny
2008-04-17 18:29 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-04-17 18:29   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-17 20:03 ` Tomasz Grobelny
2008-04-17 20:03   ` Tomasz Grobelny
2008-04-17 20:20 ` Tomasz Grobelny
2008-04-17 20:20   ` Tomasz Grobelny
2008-04-18 10:13 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-04-18 10:13   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-19 20:42 ` Tomasz Grobelny
2008-04-19 20:42   ` Tomasz Grobelny
2008-04-20 16:57 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Arnaldo Carvalho de Melo
2008-04-20 16:57   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Arnaldo Carvalho de Melo
2008-04-20 20:12 ` Tomasz Grobelny
2008-04-20 20:12   ` Tomasz Grobelny
2008-04-21 11:45 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version Patrick McHardy
2008-04-21 11:45   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Patrick McHardy
2008-04-21 13:12 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Arnaldo Carvalho de Melo
2008-04-21 13:12   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Arnaldo Carvalho de Melo
2008-04-21 16:17 ` Tomasz Grobelny
2008-04-21 16:17   ` Tomasz Grobelny
2008-04-22  4:56 ` Patrick McHardy [this message]
2008-04-22  4:56   ` Patrick McHardy
2008-04-22 17:30 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-04-22 17:30   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-22 17:41 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-04-22 17:41   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-22 20:30 ` Tomasz Grobelny
2008-04-22 20:30   ` Tomasz Grobelny
2008-04-22 20:45 ` Tomasz Grobelny
2008-04-22 20:45   ` Tomasz Grobelny
2008-04-22 22:06 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked David Miller
2008-04-22 22:06   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set David Miller
2008-04-22 22:42 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked David Miller
2008-04-22 22:42   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set David Miller
2008-04-23  0:03 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version Patrick McHardy
2008-04-23  0:03   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Patrick McHardy
2008-04-25 19:33 ` Tomasz Grobelny
2008-04-25 19:33   ` Tomasz Grobelny
2008-04-25 20:40 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Arnaldo Carvalho de Melo
2008-04-25 20:40   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Arnaldo Carvalho de Melo
2008-04-25 20:58 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked David Miller
2008-04-25 20:58   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set David Miller
2008-04-28  7:21 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-04-28  7:21   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-28  7:39 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked David Miller
2008-04-28  7:39   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set David Miller
2008-04-28 13:10 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-04-28 13:10   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-28 21:03 ` Tomasz Grobelny
2008-04-28 21:03   ` Tomasz Grobelny
2008-04-30  7:53 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-04-30  7:53   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-05-02 20:39 ` Tomasz Grobelny
2008-05-02 20:39   ` Tomasz Grobelny
2008-05-02 20:56 ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked Gerrit Renker
2008-05-02 20:56   ` [DCCP] [RFC] [Patchv2 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
  -- strict thread matches above, loose matches on Subject: below --
2008-04-24 21:51 [PATCH 1/1] [DCCP][QPOLICY]: External interface changes Tomasz Grobelny
2008-04-24 22:16 ` Tomasz Grobelny
2008-04-24 22:16   ` Tomasz Grobelny
2008-04-28 15:08 ` Gerrit Renker
2008-04-28 15:08   ` Gerrit Renker
2008-04-28 21:29 ` Tomasz Grobelny
2008-04-28 21:29   ` Tomasz Grobelny
2008-04-16  8:36 [DCCP] [RFC] [Patchv3 1/1]: Queuing policies -- reworked version Gerrit Renker
2008-04-16  8:36 ` [DCCP] [RFC] [Patchv3 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-28 15:19 ` [DCCP] [RFC] [Patchv3 1/1]: Queuing policies -- reworked version Gerrit Renker
2008-04-28 15:19   ` [DCCP] [RFC] [Patchv3 1/1]: Queuing policies -- reworked version of Tomasz's patch set Gerrit Renker
2008-04-28 20:12 ` Tomasz Grobelny
2008-04-28 20:12   ` Tomasz Grobelny
2008-04-11 10:24 [PATCH 0/5] [DCCP]: Queuing policies Tomasz Grobelny
2008-04-11 10:24 ` Tomasz Grobelny
2008-04-14  6:50 ` Gerrit Renker
2008-04-14  6:50   ` Gerrit Renker

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