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    SubjectRe: General question (scheduler) with SSDs?
    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/


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