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Re: [PATCH 1/10] Add generic helpers for arch IPI function calls
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From: Keith Owens
Subject:
Re: [PATCH 1/10] Add generic helpers for arch IPI function calls
Date: Friday, May 2, 2008 - 5:50 am
"Paul E. McKenney" (on Fri, 2 May 2008 05:29:55 -0700) wrote:
quoted text
>OK -- for some reason, I was thinking that it was illegal to >invoke smp_call_function() with irqs disabled... > >Ah, I see it -- smp_call_function_mask() says: > > * You must not call this function with disabled interrupts or from a > * hardware interrupt handler or from a bottom half handler. > >So we have no problem with smp_call_function, then. > >OK, so smp_call_function() -can- be invoked with irqs disabled? >Hmmm... I will give this some thought.
Doing any smp_call_function with interrupts disabled is a potential deadlock. See
http://lkml.org/lkml/2004/5/2/116
. --
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Messages in current thread:
[PATCH 0/10] Add generic helpers for arch IPI function cal ...
, Jens Axboe
, (Tue Apr 29, 12:26 am)
[PATCH 1/10] Add generic helpers for arch IPI function calls
, Jens Axboe
, (Tue Apr 29, 12:26 am)
[PATCH 2/10] x86: convert to generic helpers for IPI funct ...
, Jens Axboe
, (Tue Apr 29, 12:26 am)
[PATCH 3/10] powerpc: convert to generic helpers for IPI f ...
, Jens Axboe
, (Tue Apr 29, 12:26 am)
[PATCH 4/10] ia64: convert to generic helpers for IPI func ...
, Jens Axboe
, (Tue Apr 29, 12:26 am)
[PATCH 5/10] alpha: convert to generic helpers for IPI fun ...
, Jens Axboe
, (Tue Apr 29, 12:26 am)
[PATCH 6/10] arm: convert to generic helpers for IPI funct ...
, Jens Axboe
, (Tue Apr 29, 12:26 am)
[PATCH 7/10] m32r: convert to generic helpers for IPI func ...
, Jens Axboe
, (Tue Apr 29, 12:26 am)
[PATCH 8/10] mips: convert to generic helpers for IPI func ...
, Jens Axboe
, (Tue Apr 29, 12:26 am)
[PATCH 9/10] parisc: convert to generic helpers for IPI fu ...
, Jens Axboe
, (Tue Apr 29, 12:26 am)
[PATCH 10/10] sh: convert to generic helpers for IPI funct ...
, Jens Axboe
, (Tue Apr 29, 12:26 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Tue Apr 29, 6:59 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI f ...
, Jeremy Fitzhardinge
, (Tue Apr 29, 1:35 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Wed Apr 30, 4:29 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Jens Axboe
, (Wed Apr 30, 4:34 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI f ...
, Jens Axboe
, (Wed Apr 30, 4:35 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Wed Apr 30, 5:17 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI f ...
, Paul E. McKenney
, (Wed Apr 30, 5:20 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI f ...
, Jens Axboe
, (Wed Apr 30, 5:31 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Jens Axboe
, (Wed Apr 30, 5:37 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI f ...
, Jeremy Fitzhardinge
, (Wed Apr 30, 7:51 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI f ...
, Jeremy Fitzhardinge
, (Wed Apr 30, 2:39 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Jeremy Fitzhardinge
, (Wed Apr 30, 3:56 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Wed Apr 30, 7:44 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Thu May 1, 7:02 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Nick Piggin
, (Thu May 1, 7:12 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Fri May 2, 5:29 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Fri May 2, 5:42 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Keith Owens
, (Fri May 2, 5:50 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Peter Zijlstra
, (Fri May 2, 5:59 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Fri May 2, 6:09 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Fri May 2, 7:21 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Fri May 2, 7:30 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Nick Piggin
, (Fri May 2, 10:49 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Sat May 3, 11:11 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Sun May 4, 3:04 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Nick Piggin
, (Sun May 4, 9:15 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Mon May 5, 10:43 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Jens Axboe
, (Wed May 7, 1:42 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function ...
, Paul E. McKenney
, (Wed May 7, 9:36 pm)
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