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Home » Mailing list archives » linux-kernel » 2008 » April » 29

[PATCH 0/10] Add generic helpers for arch IPI function calls #3

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From: Jens Axboe <jens.axboe@...>
To: <linux-kernel@...>
Cc: <peterz@...>, <npiggin@...>, <linux-arch@...>, <jeremy@...>, <mingo@...>, <paulmck@...>
Subject: [PATCH 0/10] Add generic helpers for arch IPI function calls #3
Date: Tuesday, April 29, 2008 - 3:26 am

Hi,

This is a repost of the generic-ipi block git branch. It contains
generic helpers for issuing and handling IPI function calls. It
improves smp_call_function_single() so that it is now a scalable
interface that doesn't rely on call_lock and it also greatly
speeds up smp_call_function(). Microbenchmarks show that it is about
30% faster on call throughput on a simple 2-way SMP system. Benefits
should be much higher on bigger systems.

Changes since last post:

- Address Andrew's review comments
- Address Paul's RCU comments. Hopefully everything is covered now,
  I'd much appreciate a second look at this code Paul!
- Drop s390 support, as it currently relies on smp_call_function()
  not returning before other CPUs are ready (or have) called the passed
  in function.
- Address the x86/xen comments from Jeremy, I hope xen works as expected
  now.
- Address the review comments from Peter.
- Various other little things and improvements.

-- 
Jens Axboe



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Messages in current thread:
[PATCH 0/10] Add generic helpers for arch IPI function calls..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 1/10] Add generic helpers for arch IPI function calls, Jens Axboe, (Tue Apr 29, 3:26 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Jeremy Fitzhardinge, (Wed Apr 30, 6:56 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Tue Apr 29, 9:59 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Wed Apr 30, 7:29 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Jens Axboe, (Wed Apr 30, 7:34 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Wed Apr 30, 8:17 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Jens Axboe, (Wed Apr 30, 8:37 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Thu May 1, 10:02 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Nick Piggin, (Thu May 1, 10:12 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Fri May 2, 8:29 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Keith Owens, (Fri May 2, 8:50 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Fri May 2, 9:09 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Fri May 2, 8:42 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Peter Zijlstra, (Fri May 2, 8:59 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Nick Piggin, (Sat May 3, 1:49 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Sat May 3, 2:11 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Nick Piggin, (Mon May 5, 12:15 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Mon May 5, 1:43 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Jens Axboe, (Wed May 7, 4:42 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Thu May 8, 12:36 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Sun May 4, 6:04 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Fri May 2, 10:21 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Fri May 2, 10:30 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Wed Apr 30, 10:44 pm)
[PATCH 7/10] m32r: convert to generic helpers for IPI functi..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 6/10] arm: convert to generic helpers for IPI functio..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 5/10] alpha: convert to generic helpers for IPI funct..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 2/10] x86: convert to generic helpers for IPI functio..., Jens Axboe, (Tue Apr 29, 3:26 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Jeremy Fitzhardinge, (Wed Apr 30, 5:39 pm)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Jeremy Fitzhardinge, (Tue Apr 29, 4:35 pm)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Jens Axboe, (Wed Apr 30, 7:35 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Paul E. McKenney, (Wed Apr 30, 8:20 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Jens Axboe, (Wed Apr 30, 8:31 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Jeremy Fitzhardinge, (Wed Apr 30, 10:51 am)
[PATCH 4/10] ia64: convert to generic helpers for IPI functi..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 9/10] parisc: convert to generic helpers for IPI func..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 3/10] powerpc: convert to generic helpers for IPI fun..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 8/10] mips: convert to generic helpers for IPI functi..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 10/10] sh: convert to generic helpers for IPI functio..., Jens Axboe, (Tue Apr 29, 3:26 am)

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