Re: [PATCH [RT] 11/14] optimize the !printk fastpath through the lock acquisition

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To: <gregory.haskins@...>

Cc: Pavel Machek <pavel@...>, Gregory Haskins <ghaskins@...>, <mingo@...>, <a.p.zijlstra@...>, <tglx@...>, <rostedt@...>, <linux-rt-users@...>, <linux-kernel@...>, <kevin@...>, <cminyard@...>, <dsingleton@...>, <dwalker@...>, <npiggin@...>, <dsaxena@...>, <ak@...>, <gregkh@...>, <sdietrich@...>, <pmorreale@...>, <mkohari@...>

Subject: Re: [PATCH [RT] 11/14] optimize the !printk fastpath through the lock acquisition

Date: Monday, February 25, 2008 - 5:02 am

On Sun, Feb 24, 2008 at 10:21 PM, Bill Huey (hui) <bill.huey@gmail.com> wrote:
quoted text> It's probably safe to use, but it's not what its original purpose was
>  and you should use another function/macro. This is an annotation issue
>  and your use of it is inconsistent with how it's used in voluntary
>  preempt. I mentioned it before in a previous post. Folks will correct
>  me if I'm wrong but you should use another macro or function.

Actually, forget what I said, it's ok to use it.

bill
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Messages in current thread:

[PATCH [RT] 00/14] RFC - adaptive real-time locks, Gregory Haskins, (Thu Feb 21, 11:26 am)

Re: [PATCH [RT] 00/14] RFC - adaptive real-time locks, Ingo Molnar, (Thu Feb 21, 5:24 pm)

Re: [PATCH [RT] 00/14] RFC - adaptive real-time locks, Andrew Morton, (Sat Feb 23, 4:03 am)

Re: [PATCH [RT] 00/14] RFC - adaptive real-time locks, Peter W. Morreale, (Thu Feb 21, 6:12 pm)

Re: [PATCH [RT] 00/14] RFC - adaptive real-time locks, Peter W. Morreale, (Thu Feb 21, 6:42 pm)

Re: [PATCH [RT] 00/14] RFC - adaptive real-time locks, Gregory Haskins, (Thu Feb 21, 5:40 pm)

Re: [PATCH [RT] 00/14] RFC - adaptive real-time locks, Bill Huey (hui), (Thu Feb 21, 5:33 pm)

Re: [PATCH [RT] 00/14] RFC - adaptive real-time locks, Gregory Haskins, (Thu Feb 21, 12:05 pm)

[PATCH [RT] 14/14] sysctl for runtime-control of lateral mut..., Gregory Haskins, (Thu Feb 21, 11:27 am)

[PATCH [RT] 13/14] allow rt-mutex lock-stealing to include l..., Gregory Haskins, (Thu Feb 21, 11:27 am)

[PATCH [RT] 12/14] remove the extra call to try_to_take_lock, Gregory Haskins, (Thu Feb 21, 11:27 am)

[PATCH [RT] 11/14] optimize the !printk fastpath through the..., Gregory Haskins, (Thu Feb 21, 11:27 am)

Re: [PATCH [RT] 11/14] optimize the !printk fastpath through..., Pavel Machek, (Fri Feb 22, 3:18 pm)

Re: [PATCH [RT] 11/14] optimize the !printk fastpath through..., Gregory Haskins, (Fri Feb 22, 6:20 pm)

Re: [PATCH [RT] 11/14] optimize the !printk fastpath through..., Bill Huey (hui), (Fri Feb 22, 8:43 pm)

Re: [PATCH [RT] 11/14] optimize the !printk fastpath through..., Gregory Haskins, (Mon Feb 25, 1:20 am)

Re: [PATCH [RT] 11/14] optimize the !printk fastpath through..., Bill Huey (hui), (Mon Feb 25, 2:21 am)

Re: [PATCH [RT] 11/14] optimize the !printk fastpath through..., Bill Huey (hui), (Mon Feb 25, 5:02 am)

Re: [PATCH [RT] 11/14] optimize the !printk fastpath through..., Andi Kleen, (Thu Feb 21, 12:36 pm)

Re: [PATCH [RT] 11/14] optimize the !printk fastpath through..., Gregory Haskins, (Thu Feb 21, 12:47 pm)

[PATCH [RT] 10/14] adjust pi_lock usage in wakeup, Gregory Haskins, (Thu Feb 21, 11:27 am)

Re: [PATCH [RT] 10/14] adjust pi_lock usage in wakeup, Steven Rostedt, (Thu Feb 21, 12:48 pm)

Re: [PATCH [RT] 10/14] adjust pi_lock usage in wakeup, Peter W. Morreale, (Thu Feb 21, 1:09 pm)

[PATCH [RT] 09/14] adaptive mutexes, Gregory Haskins, (Thu Feb 21, 11:27 am)

[PATCH [RT] 08/14] add a loop counter based timeout mechanism, Gregory Haskins, (Thu Feb 21, 11:27 am)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Andi Kleen, (Thu Feb 21, 12:41 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Paul E. McKenney, (Fri Feb 22, 3:08 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Bill Huey (hui), (Fri Feb 22, 3:19 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Bill Huey (hui), (Fri Feb 22, 3:21 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Paul E. McKenney, (Fri Feb 22, 3:43 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Peter W. Morreale, (Fri Feb 22, 4:15 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Sven-Thorsten Dietrich, (Fri Feb 22, 3:55 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Peter W. Morreale, (Fri Feb 22, 4:36 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Sven-Thorsten Dietrich, (Sat Feb 23, 3:36 am)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Paul E. McKenney, (Fri Feb 22, 4:23 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Gregory Haskins, (Fri Feb 22, 6:03 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Andi Kleen, (Sat Feb 23, 8:31 am)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Paul E. McKenney, (Sat Feb 23, 12:32 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Sven-Thorsten Dietrich, (Thu Feb 21, 1:06 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Peter W. Morreale, (Thu Feb 21, 1:04 pm)

Re: [PATCH [RT] 08/14] add a loop counter based timeout mech..., Gregory Haskins, (Thu Feb 21, 1:02 pm)

[PATCH [RT] 07/14] adaptive real-time lock support, Gregory Haskins, (Thu Feb 21, 11:27 am)

Re: [PATCH [RT] 07/14] adaptive real-time lock support, Pavel Machek, (Fri Feb 22, 3:14 pm)

[PATCH [RT] 06/14] optimize rt lock wakeup, Gregory Haskins, (Thu Feb 21, 11:26 am)

[PATCH [RT] 05/14] rearrange rt_spin_lock sleep, Gregory Haskins, (Thu Feb 21, 11:26 am)

Re: [PATCH [RT] 05/14] rearrange rt_spin_lock sleep, Gregory Haskins, (Fri Feb 22, 9:29 am)

Re: [PATCH [RT] 05/14] rearrange rt_spin_lock sleep, Ingo Molnar, (Fri Feb 22, 9:35 am)

Re: [PATCH [RT] 05/14] rearrange rt_spin_lock sleep, Steven Rostedt, (Fri Feb 22, 9:46 am)

Re: [PATCH [RT] 05/14] rearrange rt_spin_lock sleep, Steven Rostedt, (Fri Feb 22, 9:43 am)

Re: [PATCH [RT] 05/14] rearrange rt_spin_lock sleep, Steven Rostedt, (Fri Feb 22, 9:35 am)

Re: [PATCH [RT] 05/14] rearrange rt_spin_lock sleep, Peter Zijlstra, (Fri Feb 22, 9:40 am)

[PATCH [RT] 04/14] disable PREEMPT_SPINLOCK_WAITERS when x86..., Gregory Haskins, (Thu Feb 21, 11:26 am)

[PATCH [RT] 03/14] x86: FIFO ticket spinlocks, Gregory Haskins, (Thu Feb 21, 11:26 am)

[PATCH [RT] 02/14] spinlock: make preemptible-waiter feature..., Gregory Haskins, (Thu Feb 21, 11:26 am)

Re: [PATCH [RT] 02/14] spinlock: make preemptible-waiter fea..., Pavel Machek, (Fri Feb 22, 3:09 pm)

[PATCH [RT] 01/14] spinlocks: fix preemption feature when PR..., Gregory Haskins, (Thu Feb 21, 11:26 am)

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