From: ebiederm@xmission.com (Eric W. Biederman)
To: Bill Huey (hui) <billh@gnuppy.monkey.org>
Cc: Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
John Stultz <johnstul@us.ibm.com>,
"Paul E. McKenney" <paulmck@us.ibm.com>,
Dipankar Sarma <dipankar@in.ibm.com>,
Arjan van de Ven <arjan@infradead.org>
Subject: Re: [PATCH] move put_task_struct() reaping into a thread [Re: 2.6.18-rt1]
Date: Tue, 26 Sep 2006 20:55:41 -0600 [thread overview]
Message-ID: <m1irjaqaqa.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <20060921065624.GA9841@gnuppy.monkey.org> (Bill Huey's message of "Wed, 20 Sep 2006 23:56:24 -0700")
Bill Huey (hui) <billh@gnuppy.monkey.org> writes:
> On Wed, Sep 20, 2006 at 04:19:07PM +0200, Ingo Molnar wrote:
>> I'm pleased to announce the 2.6.18-rt1 tree, which can be downloaded
>> from the usual place:
> ...
>> as usual, bugreports, fixes and suggestions are welcome,
>
> Speaking of which...
>
> This patch moves put_task_struct() reaping into a thread instead of an
> RCU callback function as discussed with Esben publically and Ingo privately:
Stupid question.
Why does the rt tree make all calls to put_task_struct an rcu action?
We only need the rcu callback from kernel/exit.c
Nothing else needs those semantics.
I agree that put_task_struct is the most common point so this is unlikely
to remove your issues with rcu callbacks but it just seems completely backwards
to increase the number of rcu callbacks in the rt tree.
Eric
next prev parent reply other threads:[~2006-09-27 3:08 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-20 14:19 2.6.18-rt1 Ingo Molnar
2006-09-20 16:50 ` 2.6.18-rt1 Gene Heskett
2006-09-20 16:58 ` 2.6.18-rt1 Ingo Molnar
2006-09-20 17:33 ` 2.6.18-rt1 Gene Heskett
2006-09-20 18:34 ` 2.6.18-rt1 Gene Heskett
2006-09-20 17:00 ` 2.6.18-rt1 Daniel Walker
2006-09-20 17:38 ` 2.6.18-rt1 Paul E. McKenney
2006-09-20 17:41 ` 2.6.18-rt1 Daniel Walker
2006-09-20 18:23 ` 2.6.18-rt1 Gene Heskett
2006-09-20 18:25 ` 2.6.18-rt1 Paul E. McKenney
2006-09-20 18:34 ` 2.6.18-rt1 Daniel Walker
2006-09-20 20:06 ` 2.6.18-rt1 Paul E. McKenney
2006-09-20 21:38 ` 2.6.18-rt1 Gene Heskett
2006-09-20 20:17 ` 2.6.18-rt1 Gene Heskett
2006-09-20 18:36 ` 2.6.18-rt1 Gene Heskett
2006-09-20 18:47 ` 2.6.18-rt1 Thomas Gleixner
2006-09-20 19:20 ` 2.6.18-rt1 Thomas Gleixner
2006-09-20 19:46 ` 2.6.18-rt1 Ingo Molnar
2006-09-20 20:19 ` 2.6.18-rt1 Daniel Walker
2006-09-20 20:14 ` 2.6.18-rt1 Ingo Molnar
2006-09-20 20:31 ` 2.6.18-rt1 Daniel Walker
2006-09-21 19:02 ` 2.6.18-rt1 Ingo Molnar
2006-09-21 19:18 ` 2.6.18-rt1 Daniel Walker
2006-09-22 14:42 ` 2.6.18-rt1 Daniel Walker
2006-09-27 8:36 ` 2.6.18-rt1 Ingo Molnar
2006-09-21 8:04 ` 2.6.18-rt1 Deepak Saxena
2006-09-21 8:04 ` 2.6.18-rt1 Ingo Molnar
2006-09-21 8:24 ` 2.6.18-rt1 Deepak Saxena
2006-09-22 2:19 ` 2.6.18-rt1 john cooper
2006-09-22 6:36 ` 2.6.18-rt1 Lennert Buytenhek
2006-09-22 11:56 ` 2.6.18-rt1 Ingo Molnar
2006-09-27 13:10 ` 2.6.18-rt4 john cooper
2006-09-27 13:09 ` 2.6.18-rt4 Ingo Molnar
2006-09-20 18:56 ` 2.6.18-rt1 K.R. Foley
2006-09-20 19:49 ` 2.6.18-rt1 Ingo Molnar
2006-09-20 20:33 ` 2.6.18-rt1 K.R. Foley
2006-09-20 20:41 ` 2.6.18-rt1 Thomas Gleixner
2006-09-20 20:50 ` 2.6.18-rt1 K.R. Foley
2006-09-21 19:16 ` 2.6.18-rt1 john stultz
2006-09-22 2:18 ` 2.6.18-rt1 K.R. Foley
2006-09-22 11:58 ` 2.6.18-rt1 Ingo Molnar
2006-09-28 0:42 ` 2.6.18-rt1 john stultz
2006-09-28 22:48 ` 2.6.18-rt1 john stultz
2006-09-29 2:09 ` 2.6.18-rt1 K.R. Foley
2006-09-29 12:24 ` 2.6.18-rt1 Ingo Molnar
2006-09-29 12:40 ` 2.6.18-rt1 Ingo Molnar
2006-09-20 19:58 ` 2.6.18-rt1 Thomas Gleixner
2006-09-20 20:34 ` 2.6.18-rt1 K.R. Foley
2006-09-20 19:38 ` 2.6.18-rt1 Mark Knecht
2006-09-20 20:27 ` 2.6.18-rt1 Mark Knecht
2006-09-22 14:14 ` 2.6.18-rt1 Lee Revell
2006-09-20 20:54 ` 2.6.18-rt1 Michal Piotrowski
2006-09-20 22:07 ` 2.6.18-rt1 Michal Piotrowski
2006-09-20 22:26 ` 2.6.18-rt1 Michal Piotrowski
2006-09-21 6:56 ` [PATCH] move put_task_struct() reaping into a thread [Re: 2.6.18-rt1] Bill Huey
2006-09-21 6:54 ` Ingo Molnar
2006-09-21 7:18 ` Bill Huey
2006-09-21 7:16 ` Ingo Molnar
2006-09-21 7:32 ` Bill Huey
2006-09-21 7:29 ` Ingo Molnar
2006-09-21 7:48 ` Bill Huey
2006-09-21 7:56 ` Ingo Molnar
2006-09-21 8:13 ` Bill Huey
2006-09-21 12:23 ` Esben Nielsen
2006-09-21 12:56 ` Ingo Molnar
2006-09-21 7:27 ` Bill Huey
2006-09-21 7:22 ` Ingo Molnar
2006-09-21 7:35 ` Bill Huey
2006-09-21 7:31 ` Ingo Molnar
2006-09-21 7:52 ` Bill Huey
2006-09-27 2:55 ` Eric W. Biederman [this message]
2006-09-27 5:08 ` Bill Huey
2006-09-27 6:02 ` Eric W. Biederman
2006-09-27 6:34 ` Bill Huey
2006-09-27 7:29 ` Eric W. Biederman
2006-09-27 9:01 ` Ingo Molnar
2006-09-27 13:59 ` Eric W. Biederman
2006-09-27 14:06 ` Ingo Molnar
2006-09-27 16:18 ` Paul E. McKenney
2006-09-27 9:08 ` Ingo Molnar
2006-09-27 9:09 ` Bill Huey
2006-09-27 9:05 ` Ingo Molnar
2006-09-27 20:28 ` Esben Nielsen
2006-09-27 8:57 ` Ingo Molnar
2006-09-27 9:14 ` Bill Huey
2006-09-27 9:15 ` Ingo Molnar
2006-09-25 9:53 ` 2.6.18-rt1 Florian Schmidt
2006-09-26 7:57 ` 2.6.18-rt1 Florian Schmidt
2006-09-25 16:12 ` 2.6.18-rt1 Mike Kravetz
2006-09-27 8:34 ` 2.6.18-rt1 Ingo Molnar
2006-09-30 18:06 ` 2.6.18-rt1 Lee Revell
2006-09-30 18:18 ` 2.6.18-rt1 Dipankar Sarma
2006-09-30 18:25 ` 2.6.18-rt1 Lee Revell
2006-10-13 21:18 ` 2.6.18-rt1 Karsten Wiese
2006-10-13 21:20 ` 2.6.18-rt1 Lee Revell
2006-10-13 21:24 ` 2.6.18-rt1 Dipankar Sarma
2006-10-13 22:12 ` 2.6.18-rt1 Lee Revell
2006-10-13 22:16 ` 2.6.18-rt1 Dipankar Sarma
2006-10-17 14:46 ` 2.6.18-rt1 Lee Revell
2006-10-18 8:34 ` 2.6.18-rt1 Ingo Molnar
2006-10-18 7:12 ` 2.6.18-rt1 Ingo Molnar
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