From: Linus Torvalds <torvalds@linux-foundation.org>
To: Nick Piggin <npiggin@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>, Jens Axboe <jens.axboe@oracle.com>,
linux-arch@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
peterz@infradead.org, sam@ravnborg.org
Subject: Re: [PATCH 2/11] x86: convert to generic helpers for IPI function calls
Date: Tue, 22 Apr 2008 18:22:17 -0700 (PDT) [thread overview]
Message-ID: <alpine.LFD.1.10.0804221817050.2779@woody.linux-foundation.org> (raw)
In-Reply-To: <20080423011153.GB17572@wotan.suse.de>
On Wed, 23 Apr 2008, Nick Piggin wrote:
>
> The "too expensive to check the shared queue" is one aspect of it. The
> shared queue need not have events *for us* (at least, unless Jens has
> changed the implementation a bit) but it can still have events that we
> would need to check through.
>
> I don't think deadlock is a problem (any more than with multiple vectors).
I'm happy with it either way, but as pointed out by Ralf, for the MIPS
version of the patch there aren't even other vectors available.
So sharing the vector is going to be a requirement on other architectures,
maybe we should look at whether we can make it generic and peform well
regardless?
Linus
next prev parent reply other threads:[~2008-04-23 1:23 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-22 18:50 [PATCH 0/11] Generic smp_call_function() #2 Jens Axboe
2008-04-22 18:50 ` [PATCH 1/11] Add generic helpers for arch IPI function calls Jens Axboe
2008-04-22 20:17 ` Peter Zijlstra
2008-04-23 6:07 ` Jens Axboe
2008-04-23 6:32 ` Peter Zijlstra
2008-04-23 7:49 ` Jens Axboe
2008-04-23 7:50 ` Peter Zijlstra
2008-04-24 22:01 ` Russell King
2008-04-25 7:18 ` Jens Axboe
2008-04-26 6:28 ` Jeremy Fitzhardinge
2008-04-28 7:38 ` Jes Sorensen
2008-04-26 6:11 ` Andrew Morton
2008-04-26 14:13 ` James Bottomley
2008-04-27 0:58 ` Paul E. McKenney
2008-04-27 10:36 ` Jens Axboe
2008-04-27 10:30 ` Jens Axboe
2008-04-28 14:25 ` David Howells
2008-04-28 14:43 ` James Bottomley
2008-04-22 18:50 ` [PATCH 2/11] x86: convert to generic helpers for " Jens Axboe
2008-04-22 19:03 ` Linus Torvalds
2008-04-22 19:12 ` Ingo Molnar
2008-04-22 19:22 ` Linus Torvalds
2008-04-22 19:26 ` Ingo Molnar
2008-04-22 19:50 ` Linus Torvalds
2008-04-23 1:11 ` Nick Piggin
2008-04-23 1:22 ` Linus Torvalds [this message]
2008-04-23 1:36 ` Nick Piggin
2008-04-23 7:08 ` Jens Axboe
2008-04-23 12:54 ` Jens Axboe
2008-04-26 6:44 ` Jeremy Fitzhardinge
2008-04-27 10:23 ` Jens Axboe
2008-04-27 15:18 ` Jeremy Fitzhardinge
2008-04-22 18:50 ` [PATCH 3/11] powerpc: " Jens Axboe
2008-04-22 18:50 ` [PATCH 4/11] ia64: " Jens Axboe
2008-04-22 18:50 ` [PATCH 5/11] alpha: " Jens Axboe
2008-04-22 18:50 ` [PATCH 6/11] arm: " Jens Axboe
2008-04-22 18:50 ` [PATCH 7/11] m32r: " Jens Axboe
2008-04-22 18:50 ` [PATCH 8/11] mips: " Jens Axboe
2008-04-22 23:18 ` Ralf Baechle
2008-04-23 7:18 ` Jens Axboe
2008-04-22 18:50 ` [PATCH 9/11] parisc: " Jens Axboe
2008-04-22 18:50 ` [PATCH 10/11] sh: " Jens Axboe
2008-04-25 8:56 ` Paul Mundt
2008-04-25 9:16 ` Jens Axboe
2008-04-22 18:50 ` [PATCH 11/11] s390: " Jens Axboe
2008-04-23 7:58 ` Heiko Carstens
2008-04-23 8:11 ` Jens Axboe
2008-04-23 11:21 ` Jens Axboe
2008-04-23 11:47 ` Heiko Carstens
2008-04-23 11:54 ` Jens Axboe
2008-04-23 12:42 ` Martin Schwidefsky
2008-04-23 15:56 ` Rusty Russell
-- strict thread matches above, loose matches on Subject: below --
2008-04-22 7:57 [PATCH 0/11] Generic smp_call_function() and friends Jens Axboe
2008-04-22 7:57 ` [PATCH 2/11] x86: convert to generic helpers for IPI function calls Jens Axboe
2008-04-22 8:38 ` Sam Ravnborg
2008-04-22 8:43 ` Jens Axboe
2008-04-22 11:15 ` Jens Axboe
2008-04-22 8:47 ` Ingo Molnar
2008-04-22 8:48 ` Jacek Luczak
2008-04-22 8:56 ` Jens Axboe
2008-04-22 9:04 ` Jacek Luczak
2008-04-22 8:52 ` Jens Axboe
2008-04-26 8:59 ` Jeremy Fitzhardinge
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