From: Phillip Susi <psusi@ubuntu.com>
To: Alan Stern <stern@rowland.harvard.edu>,
Dan Williams <dan.j.williams@intel.com>
Cc: Tejun Heo <tj@kernel.org>,
James Bottomley <JBottomley@parallels.com>,
Len Brown <len.brown@intel.com>,
linux-scsi <linux-scsi@vger.kernel.org>,
IDE/ATA development list <linux-ide@vger.kernel.org>,
Todd Brandt <todd.e.brandt@linux.intel.com>
Subject: Re: [PATCH v5 3/3] scsi: async sd resume
Date: Mon, 10 Mar 2014 18:41:09 -0400 [thread overview]
Message-ID: <531E3F85.9010304@ubuntu.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1403101658490.5966-100000@netrider.rowland.org>
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On 03/10/2014 04:59 PM, Alan Stern wrote:
> Why? The existing code doesn't have anything like that.
The current sd code doesn't, but the libata code does use the AHCI
staggered spinup feature flag as a hint to only spin up one drive at a
time, so these patches together may defeat that behavior when resuming
from suspend. That could be a problem on some systems. Then again,
it may still follow the same code path in libata; I haven't looked at
it closely enough lately to be sure.
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next prev parent reply other threads:[~2014-03-10 22:41 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-05 20:17 [PATCH v5 0/3] Accelerate Storage Resume (2x or more) Dan Williams
2014-03-05 20:17 ` [PATCH v5 1/3] libata, libsas: kill pm_result and related cleanup Dan Williams
2014-03-10 20:29 ` Tejun Heo
2014-03-10 20:44 ` Tejun Heo
2014-03-05 20:17 ` [PATCH v5 2/3] libata: async resume Dan Williams
2014-12-19 23:46 ` Phillip Susi
2014-12-20 1:42 ` Phillip Susi
2014-03-05 20:17 ` [PATCH v5 3/3] scsi: async sd resume Dan Williams
2014-03-07 15:42 ` Alan Stern
2014-03-08 0:41 ` Dan Williams
2014-03-08 2:52 ` Dan Williams
2014-03-10 15:49 ` Alan Stern
2014-03-10 20:43 ` Tejun Heo
2014-03-10 20:56 ` Dan Williams
2014-03-10 20:59 ` Alan Stern
2014-03-10 21:06 ` Dan Williams
2014-03-10 22:41 ` Phillip Susi [this message]
2014-03-11 4:19 ` James Bottomley
2014-03-11 4:47 ` Dan Williams
2014-03-11 5:16 ` James Bottomley
2014-03-11 5:26 ` Dan Williams
2014-03-11 6:29 ` James Bottomley
2014-03-14 20:11 ` Dan Williams
2014-03-15 21:47 ` James Bottomley
2014-03-15 23:35 ` Dan Williams
2014-03-16 18:21 ` James Bottomley
2014-03-17 18:20 ` Dan Williams
2014-03-21 0:09 ` Dan Williams
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