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From: Pavel Machek <pavel@suse.cz>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Joshua Kwan <joshk@triplehelix.org>,
	axboe@suse.de, Linux Kernel <linux-kernel@vger.kernel.org>,
	"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
	Andrew Morton <akpm@osdl.org>
Subject: Re: SATA suspend-to-ram patch - merge?
Date: Thu, 22 Sep 2005 12:36:06 +0200	[thread overview]
Message-ID: <20050922103605.GA1527@openzaurus.ucw.cz> (raw)
In-Reply-To: <433221A1.5000600@pobox.com>

Hi!

> >Is Jens' patch still relevant? If so, should it be rediffed and 
> >merged
> >into mainline? It doesn't seem to cause any weird side-effects.
> >
> >More importantly, I would be inclined to properly rediff Jens' patch 
> >and
> >merge it into Debian 2.6.12 kernel sources if there aren't any such
> >side-effects, since it benefits everyone using SATA and 
> >suspend-to-ram
> >(that is, users of relatively modern laptops.)
> 
> Jens' patch is technical correct for SATA, but really we want to do 
> more stuff at the SCSI layer (see James Bottomley's response to Jens' 
> patch).
> 
> Unfortunately, this also implies that we have to figure out which 
> SCSI devices are available to be power-managed, and which SCSI 
> devices are on a shared bus that should never be suspended.

I think that shared buses are rare enough to be safely ignored.
We could simply say "never ever suspend machine with some
disks on shared bus".

				Pavel
-- 
64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms         


  parent reply	other threads:[~2005-09-24  9:57 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <433104E0.4090308@triplehelix.org>
2005-09-22  3:14 ` SATA suspend-to-ram patch - merge? Jeff Garzik
2005-09-22  6:18   ` Jens Axboe
2005-09-22 13:04     ` Mark Lord
2005-09-22 13:08       ` Matthew Garrett
2005-09-22 13:24         ` Jens Axboe
2005-09-22 13:24       ` Jens Axboe
2005-09-22 14:28       ` Christoph Hellwig
2005-09-22 14:17     ` Alan Cox
2005-09-22 13:56       ` Jens Axboe
2005-09-22 14:30         ` Alan Cox
2005-09-22 14:20           ` Luben Tuikov
2005-09-22 17:57           ` Jeff Garzik
2005-09-22 18:04             ` Linus Torvalds
2005-09-22 18:08               ` Christoph Hellwig
2005-09-22 18:11                 ` Jens Axboe
2005-09-22 15:01     ` Randy.Dunlap
2005-09-22 10:36   ` Pavel Machek [this message]
2005-09-24 10:18     ` Jeff Garzik

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