From: Steven Rostedt <rostedt@goodmis.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@osdl.org>,
rlrevell@joe-job.com, linux-kernel@vger.kernel.org
Subject: Re: [patch] Real-Time Preemption, -RT-2.6.11-rc3-V0.7.38-01
Date: Fri, 11 Mar 2005 11:01:12 -0500 (EST) [thread overview]
Message-ID: <Pine.LNX.4.58.0503111050270.22043@localhost.localdomain> (raw)
In-Reply-To: <20050311153817.GA32020@elte.hu>
On Fri, 11 Mar 2005, Ingo Molnar wrote:
>
> * Steven Rostedt <rostedt@goodmis.org> wrote:
>
> > Here's the patch. It's probably more of an overkill wrt buffer heads,
> > but it seems to be the easiest solution.
>
> isnt there some ext3-private journal structure (journal-bh) linked off
> the bh? If the lock is in that structure then the overhead would only
> affect ext3.
>
Yes, there is, and I was trying to use it before you mentioned trying this
(which works for now). The locks are called before and after the private
pointer of the bh is set and removed. The journal_head lock, I was going
to make global, and the state lock would go on this structure. I would
have to do some hack in journal.c to flag the state lock when it was
removing the journal head so that it didn't do the remove there, but did
it after the state lock was released. But this still had a few crashes.
The journal_head lock was used to lock when to add or remove the private
data from the bh, so you can see why this structure can't be used for this
purpose. But the state lock seemed to be ok for this. I need to know more
about the journaling system.
I'll look into doing this too, but this fix should due for now.
-- Steve
next prev parent reply other threads:[~2005-03-11 16:07 UTC|newest]
Thread overview: 125+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-04 10:03 Ingo Molnar
2005-02-04 15:19 ` Kevin Hilman
2005-02-04 17:30 ` Ingo Molnar
2005-02-04 18:19 ` Tom Rini
2005-02-07 9:03 ` Ingo Molnar
2005-02-07 14:35 ` Tom Rini
2005-02-08 8:27 ` Ingo Molnar
2005-02-06 4:19 ` Valdis.Kletnieks
2005-02-07 9:21 ` Ingo Molnar
2005-02-07 15:08 ` Real-Time Preemption and UML? Esben Nielsen
2005-02-07 18:35 ` Jeff Dike
2005-02-07 23:14 ` Esben Nielsen
2005-02-08 8:39 ` Ingo Molnar
2005-02-08 18:55 ` Jeff Dike
2005-02-08 21:20 ` Esben Nielsen
2005-02-08 21:44 ` Ingo Molnar
2005-02-08 23:02 ` Esben Nielsen
2005-02-08 7:55 ` [patch] Real-Time Preemption, -RT-2.6.11-rc3-V0.7.38-01 Valdis.Kletnieks
2005-02-08 8:45 ` Ingo Molnar
2005-02-08 10:26 ` Valdis.Kletnieks
2005-02-08 21:58 ` William Weston
2005-02-09 11:51 ` Ingo Molnar
2005-02-10 2:13 ` William Weston
2005-02-10 7:52 ` Ingo Molnar
2005-02-10 20:21 ` George Anzinger
2005-02-10 20:40 ` Ingo Molnar
2005-02-10 21:05 ` George Anzinger
2005-02-11 8:34 ` Ingo Molnar
2005-02-11 9:38 ` Sven Dietrich
2005-02-11 9:42 ` Ingo Molnar
2005-02-11 0:09 ` Sven Dietrich
2005-02-11 6:01 ` George Anzinger
2005-02-11 8:28 ` Ingo Molnar
2005-02-11 9:53 ` Sven Dietrich
2005-02-11 10:04 ` Ingo Molnar
2005-02-11 21:49 ` Steven Rostedt
2005-02-13 12:59 ` Ingo Molnar
2005-02-13 15:11 ` Steven Rostedt
2005-03-03 19:36 ` [patch] Real-Time Preemption, deactivate() scheduling issue Eugeny S. Mints
2005-03-03 22:32 ` Esben Nielsen
2005-03-04 11:56 ` Eugeny S. Mints
2005-03-04 15:45 ` George Anzinger
2005-03-29 8:45 ` Ingo Molnar
2005-02-09 12:48 ` [patch] Real-Time Preemption, -RT-2.6.11-rc3-V0.7.38-01 Stephen Smalley
2005-02-10 2:20 ` William Weston
2005-02-19 5:08 ` Lee Revell
2005-02-19 6:47 ` Lee Revell
2005-02-19 9:00 ` Ingo Molnar
2005-02-19 9:03 ` Ingo Molnar
2005-02-19 20:45 ` Lee Revell
2005-02-20 0:19 ` Lee Revell
2005-03-17 16:33 ` Lee Revell
2005-02-23 2:22 ` Lee Revell
2005-03-10 9:37 ` Steven Rostedt
2005-03-10 9:54 ` Steven Rostedt
2005-03-11 9:57 ` Ingo Molnar
2005-03-11 10:15 ` Steven Rostedt
2005-03-11 10:17 ` Ingo Molnar
2005-03-11 10:24 ` Steven Rostedt
2005-03-11 10:43 ` Andrew Morton
2005-03-11 10:53 ` Steven Rostedt
2005-03-11 14:40 ` Steven Rostedt
2005-03-11 15:08 ` Steven Rostedt
2005-03-11 15:30 ` K.R. Foley
2005-03-11 15:38 ` Ingo Molnar
2005-03-11 16:01 ` Steven Rostedt [this message]
2005-03-11 20:39 ` Steven Rostedt
2005-03-11 20:46 ` Lee Revell
2005-03-11 22:06 ` Lee Revell
2005-03-14 7:37 ` Steven Rostedt
2005-03-14 9:33 ` Steven Rostedt
2005-03-14 10:10 ` Steven Rostedt
2005-03-14 15:50 ` Steven Rostedt
2005-03-14 19:02 ` Steven Rostedt
2005-03-15 11:44 ` Steven Rostedt
2005-03-15 12:00 ` Ingo Molnar
2005-03-15 13:07 ` Steven Rostedt
2005-03-15 13:35 ` Ingo Molnar
2005-03-15 13:55 ` Steven Rostedt
2005-03-15 19:12 ` Andrew Morton
2005-03-15 18:05 ` Steven Rostedt
2005-03-15 19:09 ` Lee Revell
2005-03-16 7:50 ` Steven Rostedt
2005-03-16 18:21 ` Lee Revell
2005-03-16 7:31 ` Steven Rostedt
2005-03-16 8:50 ` Ingo Molnar
2005-03-16 9:15 ` Andrew Morton
2005-03-16 9:51 ` [patch 0/3] j_state_lock, j_list_lock, remove-bitlocks Ingo Molnar
2005-03-16 9:53 ` [patch 1/3] j_state_lock -> j_state_sem Ingo Molnar
2005-03-16 9:53 ` [patch 2/3] j_list_lock -> j_list_sem Ingo Molnar
2005-03-16 9:57 ` [patch 3/3] remove bitlocks Ingo Molnar
2005-03-16 10:04 ` [patch 0/3] j_state_lock, j_list_lock, remove-bitlocks Andrew Morton
2005-03-16 10:12 ` Ingo Molnar
2005-03-16 10:23 ` Steven Rostedt
2005-03-16 10:26 ` Ingo Molnar
2005-03-16 10:26 ` Andrew Morton
2005-03-16 10:29 ` Ingo Molnar
2005-03-16 10:41 ` Andrew Morton
2005-03-16 10:34 ` Arjan van de Ven
2005-03-16 10:19 ` Ingo Molnar
2005-03-16 10:40 ` Andrew Morton
2005-03-16 10:51 ` Ingo Molnar
2005-03-16 11:05 ` Steven Rostedt
2005-03-16 11:19 ` Andrew Morton
2005-03-16 14:04 ` Steven Rostedt
2005-03-16 16:47 ` Steven Rostedt
2005-03-16 17:47 ` Steven Rostedt
2005-03-16 19:20 ` Lee Revell
2005-03-17 7:15 ` Steven Rostedt
2005-03-17 15:41 ` Lee Revell
2005-03-17 16:23 ` Steven Rostedt
2005-03-17 16:36 ` Lee Revell
2005-03-18 6:58 ` Steven Rostedt
2005-03-18 18:19 ` Lee Revell
2005-03-16 21:15 ` Andrew Morton
2005-03-17 9:21 ` Steven Rostedt
2005-03-18 9:23 ` [PATCH] remove lame schedule in journal inverted_lock (was: Re: [patch 0/3] j_state_lock, j_list_lock, remove-bitlocks) Steven Rostedt
2005-03-18 9:32 ` Andrew Morton
2005-03-18 10:38 ` Steven Rostedt
2005-03-18 11:07 ` Andrew Morton
2005-03-18 12:10 ` Steven Rostedt
2005-03-17 9:58 ` [patch 0/3] j_state_lock, j_list_lock, remove-bitlocks Steven Rostedt
2005-03-11 9:28 ` [patch] Real-Time Preemption, -RT-2.6.11-final-V0.7.40-00 Ingo Molnar
2005-03-11 12:10 ` Andrew Walrond
2005-03-14 20:19 ` Tom Rini
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