From: Sitsofe Wheeler <sitsofe@yahoo.com>
To: Kay Sievers <kay.sievers@vrfy.org>
Cc: Justin Piszcz <jpiszcz@lucidpixels.com>,
linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
linux-raid@vger.kernel.org
Subject: Re: General question (scheduler) with SSDs?
Date: Fri, 20 Feb 2009 14:27:05 +0000 [thread overview]
Message-ID: <20090220142705.GA429@silver.sucs.org> (raw)
In-Reply-To: <ac3eb2510902200523o619e64aas7bffac9aeca86814@mail.gmail.com>
On Fri, Feb 20, 2009 at 02:23:38PM +0100, Kay Sievers wrote:
> On Fri, Feb 20, 2009 at 14:12, Sitsofe Wheeler <sitsofe@yahoo.com> wrote:
> >
> > I tried
> > SUBSYSTEM=="block", ATTRS{model}=="ASUS-PHISON *", ATTR{queue/rotational}="0"
> > but udevtest /sys/block/sda/ doesn't list it as firing (udev 117-8)...
>
> I does here:
> udev_rules_apply_to_event: ATTR '/sys/devices/ ...
> /sdb/queue/rotational' writing '0'
>
> $grep . /sys/class/block/*/queue/rotational
> /sys/class/block/sda/queue/rotational:1
> /sys/class/block/sdb/queue/rotational:0
>
> Maybe "udevtest" is not showing it for you, or udev 117 is too old and
> does not work that way.
After you mentioned this I tried again and seemingly I was mistaken - it
does work as you described. I had to make a slight rule tweak to stop
it matching on partitions though:
SUBSYSTEM=="block", KERNEL=="[sh]d[a-z]", ATTRS{model}=="ASUS-PHISON *", ATTR{queue/rotational}="0"
SUBSYSTEM=="block", KERNEL=="[sh]d[a-z]", ATTRS{idVendor}=="0951", ATTRS{idProduct}=="1606", ATTR{queue/rotational}="0"
SUBSYSTEM=="block", KERNEL=="[sh]d[a-z]", ATTRS{manufacturer}=="SanDisk", ATTRS{product}=="Cruzer Micro", ATTR{queue/rotational}="0"
Thanks!
--
Sitsofe | http://sucs.org/~sits/
next prev parent reply other threads:[~2009-02-20 14:27 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-19 13:38 General question (scheduler) with SSDs? Justin Piszcz
2009-02-19 13:50 ` Pádraig Brady
2009-02-20 9:31 ` Sitsofe Wheeler
2009-02-20 9:43 ` Sitsofe Wheeler
2009-02-20 10:37 ` Justin Piszcz
2009-02-20 10:44 ` Sitsofe Wheeler
2009-02-20 11:16 ` Kay Sievers
2009-02-20 13:12 ` Sitsofe Wheeler
2009-02-20 13:23 ` Kay Sievers
2009-02-20 14:27 ` Sitsofe Wheeler [this message]
2009-02-20 14:56 ` Kay Sievers
2009-02-20 19:25 ` Sitsofe Wheeler
2009-02-20 19:35 ` Kay Sievers
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