From: David Miller <davem@davemloft.net>
To: torvalds@linux-foundation.org
Cc: fujita.tomonori@lab.ntt.co.jp, jens.axboe@oracle.com,
mingo@elte.hu, linux-kernel@vger.kernel.org, jgarzik@pobox.com,
alan@lxorguk.ukuu.org.uk, tomof@acm.org
Subject: Re: [bug] ata subsystem related crash with latest -git
Date: Wed, 17 Oct 2007 18:49:24 -0700 (PDT) [thread overview]
Message-ID: <20071017.184924.104034442.davem@davemloft.net> (raw)
In-Reply-To: <alpine.LFD.0.999.0710171834001.26902@woody.linux-foundation.org>
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 17 Oct 2007 18:36:34 -0700 (PDT)
> Although I also wonder whether we want one global per-arch
> ARCH_HAS_SG_CHAIN
It's there because the DMA mapping support code for a platform has to
be converted to handle these chains and audited to make sure the
conversion is right. Some platforms, such as sparc64, took a lot of
work to get right :-)
Once that macro is set, the block device driver has to support it too,
and there are knobs all the way down to the scsi host driver to
indicate this.
The idea is that all of this mess gets deleted in the end, it was
meant to be a safe transition scheme.
next prev parent reply other threads:[~2007-10-18 1:49 UTC|newest]
Thread overview: 151+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-17 15:46 [bug] block " Ingo Molnar
2007-10-17 15:50 ` Ingo Molnar
2007-10-17 16:32 ` Jens Axboe
2007-10-17 16:50 ` Linus Torvalds
2007-10-17 16:59 ` Jens Axboe
2007-10-17 17:08 ` Jens Axboe
2007-10-17 17:21 ` Jens Axboe
2007-10-17 17:29 ` Jens Axboe
2007-10-17 17:34 ` Ingo Molnar
2007-10-17 17:36 ` Jens Axboe
2007-10-17 17:45 ` [bug] ata " Ingo Molnar
2007-10-17 17:53 ` Jens Axboe
2007-10-17 17:55 ` Jens Axboe
2007-10-17 17:58 ` Ingo Molnar
2007-10-17 18:37 ` Jens Axboe
2007-10-17 19:04 ` Ingo Molnar
2007-10-17 19:08 ` Jens Axboe
2007-10-17 19:14 ` Ingo Molnar
2007-10-17 19:17 ` Ingo Molnar
2007-10-17 19:25 ` Jens Axboe
2007-10-17 19:25 ` Jens Axboe
2007-10-17 19:09 ` Ingo Molnar
2007-10-17 19:28 ` Linus Torvalds
2007-10-17 19:35 ` Jens Axboe
2007-10-17 19:45 ` Linus Torvalds
2007-10-17 19:56 ` Jens Axboe
2007-10-17 20:06 ` Jens Axboe
2007-10-17 20:24 ` Linus Torvalds
2007-10-17 20:31 ` Jens Axboe
2007-10-17 21:11 ` Linus Torvalds
2007-10-17 23:00 ` FUJITA Tomonori
2007-10-18 1:07 ` Linus Torvalds
2007-10-18 1:14 ` Jeff Garzik
2007-10-18 1:19 ` David Miller
2007-10-18 1:36 ` Linus Torvalds
2007-10-18 1:49 ` David Miller [this message]
2007-10-18 3:44 ` Mark Lord
2007-10-18 4:01 ` Linus Torvalds
2007-10-18 4:05 ` Mark Lord
2007-10-18 4:14 ` Jeff Garzik
2007-10-18 4:18 ` Mark Lord
2007-10-18 4:31 ` Jeff Garzik
2007-10-18 4:41 ` Mark Lord
2007-10-18 4:53 ` Linus Torvalds
2007-10-18 7:05 ` Jens Axboe
2007-10-18 13:13 ` Mark Lord
2007-10-18 13:23 ` Jens Axboe
2007-10-18 13:32 ` Mark Lord
2007-10-18 13:34 ` Jens Axboe
2007-10-18 13:59 ` Mark Lord
2007-10-18 14:04 ` Jens Axboe
2007-10-18 4:45 ` Linus Torvalds
2007-10-18 4:54 ` Mark Lord
2007-10-18 5:09 ` Mark Lord
2007-10-18 4:20 ` Linus Torvalds
2007-10-18 5:25 ` Mark Lord
2007-10-18 5:34 ` Mark Lord
2007-10-18 5:45 ` Jeff Garzik
2007-10-18 7:09 ` Jens Axboe
2007-10-18 7:30 ` Jeff Garzik
2007-10-18 8:21 ` Jens Axboe
2007-10-18 11:55 ` David Miller
2007-10-18 11:57 ` Jens Axboe
2007-10-18 12:05 ` David Miller
2007-10-18 12:09 ` Jens Axboe
2007-10-18 12:15 ` Jens Axboe
2007-10-18 12:36 ` David Miller
2007-10-18 12:39 ` Jens Axboe
2007-10-18 12:58 ` Benny Halevy
2007-10-18 13:56 ` Jens Axboe
2007-10-18 14:05 ` Jens Axboe
2007-10-18 14:16 ` Benny Halevy
2007-10-18 14:38 ` Jens Axboe
2007-10-18 14:58 ` Olof Johansson
2007-10-18 15:25 ` Jens Axboe
2007-10-18 12:58 ` Jens Axboe
2007-10-18 13:32 ` Jens Axboe
2007-10-18 13:49 ` Benny Halevy
2007-10-18 13:55 ` Jens Axboe
2007-10-18 13:51 ` Mark Lord
2007-10-18 13:58 ` Jens Axboe
2007-10-18 14:03 ` Mark Lord
2007-10-18 14:10 ` Mark Lord
2007-10-18 14:13 ` Mark Lord
2007-10-18 14:14 ` Jens Axboe
2007-10-18 16:55 ` Linus Torvalds
2007-10-18 17:01 ` Jens Axboe
2007-10-18 17:10 ` Jens Axboe
2007-10-18 17:10 ` Arjan van de Ven
2007-10-18 17:14 ` Jens Axboe
2007-10-19 8:59 ` FUJITA Tomonori
2007-10-18 19:20 ` Jeff Garzik
2007-10-17 20:51 ` Ingo Molnar
2007-10-17 19:49 ` Jens Axboe
2007-10-17 20:05 ` Ingo Molnar
2007-10-17 20:10 ` Linus Torvalds
2007-10-18 7:07 ` Ingo Molnar
2007-10-18 7:10 ` Jens Axboe
2007-10-18 8:22 ` Jeff Garzik
2007-10-18 8:32 ` Jens Axboe
2007-10-18 8:38 ` Jeff Garzik
2007-10-18 8:51 ` Jeff Garzik
2007-10-18 9:01 ` Jeff Garzik
[not found] ` <bd58e4af0710180210tcc0d31ep9d05a0f2e9d6df29@mail.gmail.com>
2007-10-18 9:14 ` Jeff Garzik
2007-10-18 9:17 ` Jens Axboe
2007-10-18 9:32 ` Jeff Garzik
2007-10-18 9:41 ` Jens Axboe
2007-10-18 10:04 ` Jeff Garzik
2007-10-18 10:10 ` Jens Axboe
2007-10-18 10:13 ` Ingo Molnar
2007-10-18 10:16 ` Jens Axboe
2007-10-18 10:17 ` Jens Axboe
2007-10-18 10:49 ` Ingo Molnar
2007-10-18 10:50 ` Jeff Garzik
2007-10-18 10:56 ` Jens Axboe
2007-10-18 10:42 ` [PATCH] " Jeff Garzik
2007-10-18 10:54 ` Ingo Molnar
2007-10-18 11:02 ` Jeff Garzik
2007-10-18 11:40 ` Ingo Molnar
2007-10-18 14:52 ` Olof Johansson
2007-10-20 11:55 ` Torsten Kaiser
2007-10-18 11:03 ` Ingo Molnar
2007-10-18 11:05 ` Jens Axboe
2007-10-17 19:42 ` Linus Torvalds
2007-10-17 19:55 ` Jens Axboe
2007-10-17 18:08 ` Linus Torvalds
2007-10-17 18:13 ` Ingo Molnar
2007-10-17 17:56 ` [bug] block " Linus Torvalds
2007-10-17 18:02 ` Jens Axboe
2007-10-17 18:13 ` Linus Torvalds
2007-10-17 18:20 ` Jens Axboe
2007-10-17 18:58 ` Linus Torvalds
2007-10-17 19:03 ` Jens Axboe
2007-10-17 19:15 ` Linus Torvalds
2007-10-17 18:02 ` Ingo Molnar
2007-10-17 18:14 ` Linus Torvalds
2007-10-17 20:15 ` Luca Tettamanti
2007-10-17 17:30 ` Ingo Molnar
2007-10-17 17:31 ` Jens Axboe
2007-10-17 17:28 ` Ingo Molnar
2007-10-17 17:52 ` Linus Torvalds
2007-10-17 18:00 ` Jens Axboe
2007-10-17 18:18 ` Linus Torvalds
2007-10-17 18:22 ` Jens Axboe
2007-10-18 10:52 ` Benny Halevy
2007-10-18 10:55 ` Jens Axboe
2007-10-18 12:03 ` David Miller
2007-10-18 12:28 ` Jens Axboe
2007-10-17 18:22 ` Linus Torvalds
2007-10-17 18:40 ` Jens Axboe
2007-10-17 17:11 ` Ingo Molnar
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