On Thu, 2015-06-25 at 13:21 -0300, Henrique de Moraes Holschuh wrote:
> On Mon, 22 Jun 2015, Jeff Chua wrote:
> > There's no need to wait for disk spin-up for USB SSD devices. This patch
>
> No, you have to, instead, wait for SSD firmware startup.
>
> And looking at the contents of sd_spinup_disk
On Mon, 22 Jun 2015, Jeff Chua wrote:
> There's no need to wait for disk spin-up for USB SSD devices. This patch
No, you have to, instead, wait for SSD firmware startup.
And looking at the contents of sd_spinup_disk(), I don't think it is safe to
just skip it, either. It would be be better to ca
On Thu, Jun 25, 2015 at 2:08 PM, Martin Steigerwald wrote:
> Am Mittwoch, 24. Juni 2015, 18:41:52 schrieb Greg Kroah-Hartman:
>> On Thu, Jun 25, 2015 at 07:55:45AM +0800, Jeff Chua wrote:
>> > On Thu, Jun 25, 2015 at 12:28 AM, Greg Kroah-Hartman
>> >
>> > wrote:
>> > > On Thu, Jun 25, 2015 at 12:
Am Mittwoch, 24. Juni 2015, 18:41:52 schrieb Greg Kroah-Hartman:
> On Thu, Jun 25, 2015 at 07:55:45AM +0800, Jeff Chua wrote:
> > On Thu, Jun 25, 2015 at 12:28 AM, Greg Kroah-Hartman
> >
> > wrote:
> > > On Thu, Jun 25, 2015 at 12:22:47AM +0800, Jeff Chua wrote:
> > >> Both sda and sdb have the s
On Thu, Jun 25, 2015 at 07:55:45AM +0800, Jeff Chua wrote:
> On Thu, Jun 25, 2015 at 12:28 AM, Greg Kroah-Hartman
> wrote:
> > On Thu, Jun 25, 2015 at 12:22:47AM +0800, Jeff Chua wrote:
>
> >> Both sda and sdb have the same SSD model.
> >
> > That's a bug in your USB bridge chip, odds are it is n
On Thu, Jun 25, 2015 at 12:28 AM, Greg Kroah-Hartman
wrote:
> On Thu, Jun 25, 2015 at 12:22:47AM +0800, Jeff Chua wrote:
>> Both sda and sdb have the same SSD model.
>
> That's a bug in your USB bridge chip, odds are it is not reporting the
> value properly. There's nothing the scsi core or USB
On Thu, Jun 25, 2015 at 12:22:47AM +0800, Jeff Chua wrote:
> On Wed, Jun 24, 2015 at 2:55 AM, Martin Steigerwald
> wrote:
> > Am Dienstag, 23. Juni 2015, 20:26:12 schriebst Du:
> >> Hi,
> >
> > Hi,
> >
> >> [proper In-Reply-To trail missing since lkml.org now fails to provide it]
> > […]
> >> > G
On Wed, Jun 24, 2015 at 2:55 AM, Martin Steigerwald wrote:
> Am Dienstag, 23. Juni 2015, 20:26:12 schriebst Du:
>> Hi,
>
> Hi,
>
>> [proper In-Reply-To trail missing since lkml.org now fails to provide it]
> […]
>> > Greg,
>> >
>> > SSD is coming mainstream and it doesn't make sense wasting time
>
You might want to grep for QUEUE_FLAG_NONROT or queue_nonrot_entry...
Regards,
Marc
P.S: sent from mobile, might be short.
Am 23. Juni 2015 17:02:22 MESZ, schrieb Jeff Chua :
>On Mon, Jun 22, 2015 at 11:36 PM, Greg Kroah-Hartman
> wrote:
>> On Mon, Jun 22, 2015 at 03:25:29PM +0800, Jeff Chua wro
Am Dienstag, 23. Juni 2015, 20:26:12 schriebst Du:
> Hi,
Hi,
> [proper In-Reply-To trail missing since lkml.org now fails to provide it]
[…]
> > Greg,
> >
> > SSD is coming mainstream and it doesn't make sense wasting time
> > spinning up "disk" ...
>
> ...which probably is not truly being achi
On Tue, Jun 23, 2015 at 5:02 PM, Jeff Chua wrote:
> On Mon, Jun 22, 2015 at 11:36 PM, Greg Kroah-Hartman
> wrote:
>> On Mon, Jun 22, 2015 at 03:25:29PM +0800, Jeff Chua wrote:
>>>
>>> There's no need to wait for disk spin-up for USB SSD devices. This patch
>>> allow the SSD to skip waiting disk s
Hi,
[proper In-Reply-To trail missing since lkml.org now fails to provide it]
> On Mon, Jun 22, 2015 at 11:36 PM, Greg Kroah-Hartman
> wrote:
> > On Mon, Jun 22, 2015 at 03:25:29PM +0800, Jeff Chua wrote:
> >>
> >> There's no need to wait for disk spin-up for USB SSD devices. This
> >> patch
> >
On Mon, Jun 22, 2015 at 11:36 PM, Greg Kroah-Hartman
wrote:
> On Mon, Jun 22, 2015 at 03:25:29PM +0800, Jeff Chua wrote:
>>
>> There's no need to wait for disk spin-up for USB SSD devices. This patch
>> allow the SSD to skip waiting disk spin-up by passing sd_mod.ssd=1 during
>> boot-up.
>>
>> If
On Mon, Jun 22, 2015 at 03:25:29PM +0800, Jeff Chua wrote:
>
> There's no need to wait for disk spin-up for USB SSD devices. This patch
> allow the SSD to skip waiting disk spin-up by passing sd_mod.ssd=1 during
> boot-up.
>
> If there's a better way to handle this, please share.
Module paramete
There's no need to wait for disk spin-up for USB SSD devices. This
patch allow the SSD to skip waiting disk spin-up by passing sd_mod.ssd=1
during boot-up.
If there's a better way to handle this, please share.
Thanks,
Jeff
--- linux/drivers/scsi/sd.c 2015-05-25 07:29:44.0 +0800
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